Following news of the potential for life on the recently-discovered TRAPPIST-1 system, there may be another competitor ready to take its place.
With the help of the Cassini spacecraft, NASA (National Aeronautics and Space Administration) scientists have picked up the first evidence that chemical reactions are taking place deep below the surface of Enceladus, Saturn’s (土星的) sixth-largest moon. This means that there could be life in Enceladus’ warm underground seas.
An early study found that liquid oceans exist miles below Enceladus’ surface. But to reveal what is happening down there, scientists must rely on the plumes (股) of water that spray (喷射) through cracks in Enceladus’ icy surface. In October 2015, NASA sent Cassini into a deep dive into one of the plumes.
Cassini’s findings, published on April 13 in the journal Science, showed that hydrogen (氢) not only exists on Enceladus, but is also responsible for a chemical reaction between hot rocks and water in the ocean beneath its surface.
This same process on Earth provides energy for entire ecosystems around volcanic vents (火山口). There, tiny creatures are able to survive without sunlight, using hydrogen and carbon dioxide as fuel in a process known as “methanogenesis (甲烷生成)”.
The discovery of this chemical energy source on Enceladus means it could be a very good candidate to host life.
“Confirmation (确认) that the chemical energy for life exists within the ocean of a small moon of Saturn is an important milestone (里程碑) in our search for habitable (可居住的) worlds beyond Earth,” Linda Spilker, Cassini project scientist at NASA, told the Daily Mail.
Alien life was once only thought possible on habitable planets within the “Goldilocks zone” – far enough from our sun not to be a fireball, but not so far as to be freezing.
Research on Enceladus is still in its early stages, but the recent findings have important meanings for future exploration.
“At present, we know of only one genesis (诞生) of life, the one that led to us,” David Rothery, professor of planetary geosciences (行星与地球科学) from the Open University in the UK, told The Telegraph.
“If we knew that life had started independently in two places in our solar system, then we could be pretty confident that life also got started on some of the tens of billions of planets and moons around other stars in our galaxy,” he said.
1.What is the article mainly about?
A. The connection between the TRAPPIST-1 system and Enceladus.
B. The potential for life on Saturn’s moon, Enceladus.
C. The chemical energy source on Enceladus.
D. Scientists’ constant search for life in the solar system.
2.Scientists assume that there could be life on Enceladus because ______.
A. there is evidence of a warm ocean under Enceladus’ surface
B. hot rocks and water have been discovered on Enceladus
C. hydrogen discovered on Enceladus could be a chemical energy source
D. the entire ecosystems of Enceladus are somewhat similar to those of Earth
3.According to David Rothery, the recent findings on Enceladus could mean that ______.
A. there is only one genesis of life in our galaxy
B. there could be many habitable planets, but all in the “Goldilocks zone”
C. it won’t be long before scientists find a habitable planet beyond Earth
D. alien life could exist on some other planets if it existed on Enceladus
高二英语阅读理解中等难度题
Following news of the potential for life on the recently-discovered TRAPPIST-1 system, there may be another competitor ready to take its place.
With the help of the Cassini spacecraft, NASA (National Aeronautics and Space Administration) scientists have picked up the first evidence that chemical reactions are taking place deep below the surface of Enceladus, Saturn’s (土星的) sixth-largest moon. This means that there could be life in Enceladus’ warm underground seas.
An early study found that liquid oceans exist miles below Enceladus’ surface. But to reveal what is happening down there, scientists must rely on the plumes (股) of water that spray (喷射) through cracks in Enceladus’ icy surface. In October 2015, NASA sent Cassini into a deep dive into one of the plumes.
Cassini’s findings, published on April 13 in the journal Science, showed that hydrogen (氢) not only exists on Enceladus, but is also responsible for a chemical reaction between hot rocks and water in the ocean beneath its surface.
This same process on Earth provides energy for entire ecosystems around volcanic vents (火山口). There, tiny creatures are able to survive without sunlight, using hydrogen and carbon dioxide as fuel in a process known as “methanogenesis (甲烷生成)”.
The discovery of this chemical energy source on Enceladus means it could be a very good candidate to host life.
“Confirmation (确认) that the chemical energy for life exists within the ocean of a small moon of Saturn is an important milestone (里程碑) in our search for habitable (可居住的) worlds beyond Earth,” Linda Spilker, Cassini project scientist at NASA, told the Daily Mail.
Alien life was once only thought possible on habitable planets within the “Goldilocks zone” – far enough from our sun not to be a fireball, but not so far as to be freezing.
Research on Enceladus is still in its early stages, but the recent findings have important meanings for future exploration.
“At present, we know of only one genesis (诞生) of life, the one that led to us,” David Rothery, professor of planetary geosciences (行星与地球科学) from the Open University in the UK, told The Telegraph.
“If we knew that life had started independently in two places in our solar system, then we could be pretty confident that life also got started on some of the tens of billions of planets and moons around other stars in our galaxy,” he said.
1.What is the article mainly about?
A. The connection between the TRAPPIST-1 system and Enceladus.
B. The potential for life on Saturn’s moon, Enceladus.
C. The chemical energy source on Enceladus.
D. Scientists’ constant search for life in the solar system.
2.Scientists assume that there could be life on Enceladus because ______.
A. there is evidence of a warm ocean under Enceladus’ surface
B. hot rocks and water have been discovered on Enceladus
C. hydrogen discovered on Enceladus could be a chemical energy source
D. the entire ecosystems of Enceladus are somewhat similar to those of Earth
3.According to David Rothery, the recent findings on Enceladus could mean that ______.
A. there is only one genesis of life in our galaxy
B. there could be many habitable planets, but all in the “Goldilocks zone”
C. it won’t be long before scientists find a habitable planet beyond Earth
D. alien life could exist on some other planets if it existed on Enceladus
高二英语阅读理解中等难度题查看答案及解析
The role of a newspaper is to present and comment on the news. It is vital for keeping people well-informed on current affairs. In most Western countries, journalists try to shape the ideas and opinions of their readers, since in Western countries all newspapers are independent of the government. Some newspaper owners support liberal ideas including economic policies that help poor people. Other owners want policies such as lower taxes for rich people and less money to be given to poor people. You can almost judge the political ideas of a person in the West by looking at the newspaper he reads.
All newspapers report national and international news. They give the facts but also provide opinions on controversial issues in the editorials and columns of opinion. The readers of the newspaper can also comment on these editorials or articles. There are many informative articles too as well as reviews of new films and books, etc. These are very important, for if a film or book gets good reviews it will often become more successful.
All these articles require many journalists who are experts in different areas of life. All these articles come together and are checked by the chief editor of the newspaper. When he or she has made a decision on the articles, the newspaper is prepared for printing. All this work means that the journalists must work together as a team because there is a lot of pressure when you work in a newspaper office. There are constant deadlines and articles have to be fitted round advertisements, photographs and much, much more.
1.What articles comment on controversial issues?
A. Editorials and opinion columns.
B. News stories.
C. Some of the informative articles.
D. Jokes and humor.
2.Which is true about the journalists in Western countries?
A. There’s no time limit for their report articles.
B. They have no right to influence the readers’ opinions.
C. A newspaper can come out with just a journalist working individually.
D. Journalists must submit their articles before the due date.
3.Why are good reviews important to books?
A. Good reviews are excellent introduction to books.
B. Readers especially favor books with good reviews.
C. Good reviews can make readers feel relaxed and comfortable.
D. Good reviews can bring a large circulation of the books reviewed.
4.Which of the following sentences best fits at the end of the last paragraph?
A. The number of people needed to produce a newspaper varies greatly.
B. The staff of a daily newspaper is headed by a publisher.
C. The articles printed in the newspaper should cover national and international affairs.
D. The entire staff must operate as a well-drilled team if the papers are to reach homes and news-stands on schedule.
高二英语阅读理解中等难度题查看答案及解析
The role of a newspaper is to present and comment on the news. It is vital for keeping people well-informed on current affairs. In most Western countries, journalists try to shape the ideas and opinions of their readers, since in Western countries all newspapers are independent of the government. Some newspaper owners support liberal ideas including economic policies that help poor people. Other owners want policies such as lower taxes for rich people and less money to be given to poor people. You can almost judge the political ideas of a person in the West by looking at the newspaper he reads.
All newspapers report national and international news. They give the facts but also provide opinions on controversial issues in the editorials and columns of opinion. The readers of the newspaper can also comment on these editorials or articles. There are many informative articles too as well as reviews of new films and books, etc. These are very important, for if a film or book gets good reviews it will often become more successful.
All these articles require many journalists who are experts in different areas of life. All these articles come together and are checked by the chief editor of the newspaper. When he or she has made a decision on the articles, the newspaper is prepared for printing. All this work means that the journalists must work together as a team because there is a lot of pressure when you work in a newspaper office. There are constant deadlines and articles have to be fitted round advertisements, photographs and much, much more.
1.What does the underlined word “be fitted” mean?
A. be suitable B. be put
C. be read D. be measured
2.What articles comment on controversial issues?
A. Editorials and opinion columns.
B. News stories.
C. Some of the informative articles.
D. Jokes and humour.
3.Which is true about the journalists in Western countries?
A. There’s no time limit for their report articles.
B. They have no right to influence the readers’ opinions.
C. A newspaper can come out with just a journalist working individually.
D. Journalists must submit their articles before the due date.
4.Why are good reviews important to books?
A. Good reviews are excellent introduction to books.
B. Readers especially favour books with good reviews.
C. Good reviews can make readers feel relaxed and comfotable.
D. Good reviews can bring a large circulation of the books reviewed.
高二英语阅读理解中等难度题查看答案及解析
Is There Life on Earth
There was great excitement on the planet of Venus this week. For the first time Venusian scientists managed to land a satellite on the planet Earth, and it has been sending back signals as well as photographs ever since.
The satellite was directed into an area known as Manhattan(named after the great Venusian astronomer Prof. Manhattan, who first discovered it with his telescope 20,000 light years ago). Because of excellent weather conditions and extremely strong signals, Venusian scientists were able to get valuable information as to the feasibility(可行性)of a manned flying saucer(飞碟)landing on Earth. A press conference was held at the Venus Institute of Technology.
“We have come to the conclusion, based on last week’s satellite landing,” Pro. Zog said, “that there is no life on the Earth.”
“How do you know this?” the science reporter of the Venus Evening Star asked.
“For on thing, Earth’s surface in the area of Manhattan is composed of solid concrete and nothing can grow there. For another, the atmosphere is filled with carbon monoxide and other deadly gases and nobody could possibly breathe this air and survive.”
“What does this mean as far as our flying saucer program is concerned?”
“We shall have to take our own oxygen with us, which means heavier flying saucer than we originally planned.”
“Are there any other risks that you discovered in your studies?”
“Take a look at his photo. You see this dark black cloud floating over the surface of Earth?” We call this the Consolidated Edison Belt. We don’t know what it is made of, but it could give us a lot of trouble and we shall have to make further tests before we send a Venus Being there.”
“If what you say is true, won’t this set back the flying saucer program several years?”
“Yes, but we shall proceed as soon as the Grubstart gives us the added funds.”
“Pro. Zog, why are we spending billions and billions of zilches to land a flying saucer on Earth when there is no life there?
“Because if we Venusians can learn to breathe in an Earth atmosphere, then. We can live anywhere.”
1.The Venusians were excited this week because they __________.
A. landed a satellite with Venus astronauts on Earth
B. made a first-rate flying saucer
C. got an Earth Being to Venus
D. directed a satellite into Earth
2.According to Pro. Zong, why will the Venusians have to take their own oxygen with them?
A. Because they need it on their way to the planet of Earth
B. Because the Earth’s atmosphere is filled with deadly gases
C. Because deadly gases is far from enough on Earth
D. Because there is no air on the planet of Earth
3.The “dark black cloud” in the photograph refers to _________.
A. the polluted air floating over the surface of Earth
B. the mass of tiny drops of water floating above Earth
C. the concrete that is unknown to everywhere
D. the dark clouds gathering before a storm breaks
4.What’s the purpose of the writer?
A. to arouse the awareness of protecting the earth
B. to introduce a Venusians’ science program
C. to tell us the serious pollution of the Venus
D. to tell us an exciting Venusians’ exploration
高二英语阅读理解中等难度题查看答案及解析
Is There Life on Earth?
There was great excitement on the planet of Venus(金星) this week. For the first time Venusian scientists managed to land a satellite on the planet Earth, and it has been sending back signals as well as photographs ever since.
The satellite was directed into an area known as Manhattan (named after the great Venusian astronomer Prof. Manhattan, who first discovered it with his telescope 20,000 light years ago).
Because of excellent weather conditions and extremely strong signals, Venusian
scientists were able to get valuable information as to feasibility (可行性) of a manned flying saucer (碟) landing on Earth. A press conference was held at the Venus Institute of Technology.
“We have come to the conclusion, based on last week’s satellite landing,” Prof. Zog said, “that there is no life on Earth.”
“How do you know this?” the science reporter of the Venus Evening Star asked.
“For one thing, Earth’s surface in the area of Manhattan is made up of solid concrete and nothing can grow there. For another, the atmosphere is filled with carbon monoxide (一氧化碳) and other deadly gases and nobody could possibly breathe the air and survive.”
“What does this mean as far as our flying saucer program is concerned?”
“We shall have to take our own oxygen with us, which means a much heavier flying saucer than originally planned.”
“Are there any other dangers that you discovered in your studies?”
“Take a look at this photo. You see this dark black cloud hovering(盘旋) over the surface of Earth? We call this the Consolidated Edison Belt. We don’t know what it is made of, but it could give us a lot of trouble and we shall have to make further tests before we send a Venus Being there.”
“Over here you will notice what seems to be a river, but the satellite findings indicate it is polluted and the water is unfit to drink. This means we shall have to carry our own water, which will add even greater weight to the saucer.”
“Sir, what are all those tiny black spots on the photographs?”
“We are not certain. They seem to be metal particles(粒子) that move along certain paths. They emit gases, make noise and keep crashing into each other. There are so many of these paths and so many metal particles that it is impossible to land a flying saucer without its being smashed by one”.
“What are those stalagmite(石笋) projections sticking up?”
“They are some of granite formations that give off light at night. Prof. Glom has named them skyscrapers since they seem to be scraping the skies. ”
“If all you say is true, won’t this set back the flying saucer program several years?”
“Yes, but we shall continue as soon as the Grubstart gives us the added funds.”
Prof. Zog, why are we spending billions and billions of zilches to land a flying saucer on Earth when there is no life there?
“Because if we Venusians can learn to breathe in an Earth atmosphere, then we can live anywhere.”
1.According to Prof. Zog, the Venusians will have to take their own oxygen with them when they carry out their flying saucer program because ________.
A. they need it on their way to the planet of earth
B. the earth’s atmosphere is filled with deadly gases
C. oxygen is far from enough in the area of Manhattan
D. there is no air on the planet of Earth
2.The “dark black cloud” in the 10th paragraph indicates ________.
A. the polluted air hovering over the surface of Earth
B. the mass of tiny drops of water floating above Earth
C. the mass of small things moving through the air
D. the dark clouds gathering before a storm breaks
3.The author wishes to call our attention to the fact that ________.
A. modern man has polluted his environment to such an extent that he may destroy himself if he carries on like this
B. there is no point in spending billions and billions of zilches to land a flying saucer on Earth
C. pollution has become so serious a problem on Earth that even Venusians find life there unbearable
D. it is difficult, if not altogether impossible, to land a manned flying saucer on Earth
4.The tone of this essay is ________.
A. hopeless and objective
B. serious and critical (批评的)
C. humorous and satirical (讽刺的)
D. sensitive and subjective
高二英语阅读理解中等难度题查看答案及解析
The life of George Washington was characterized by a high regard for punctuality. For him, being on time was a way of showing ______ to others, and he ______ to be treated with the same level of respect ______.
Once Washington asked a man to bring some ______ he was interested in buying at five in the morning.______, the man arrived fifteen minutes late. Washington's groom(马夫) told the man that the general(将军) had been ______ there at five, but had now moved on to other business. Washington said that he wouldn't be able to ______ the horses again until the following week. The man left with his horses, feeling a deep sense of ______.
When he told Congress(国会议员) that he'd meet with them at noon, he could almost always be found walking into the meeting room just as the clock was ______ twelve.
Washington's punctuality extended to his ______ as well. He ate dinner each day at ______ four o'clock. When he ______ members of Congress to dine with him, and they______ late, they were often ______ to find the president halfway done with his meal or even leaving the table. To his shocked, late______ he would say, "We are punctual here. My cook never asks ______ the guests have arrived, but whether the hour has come."
And when Washington's secretary arrived late to a meeting, and blamed(责怪) his ______ for his lateness, Washington quietly replied, "Then you must get another watch, or I another______."
Washington, one of the most respected presidents in American history, is a good example to us all. Today, punctuality is still a(n)______ part of the character of a nice person. So next time when you are struggling with arriving______, think of these stories about the punctual president.
1.A. appreciation B. respect C. pity D. concern
2.A. hated B. decided C. expected D. refused
3.A. in return B. in time C. in exchange D. in total
4.A. weapons B. boots C. horses. D. guns
5.A. Therefore B. Besides C. Or D. However
6.A. waiting B. looking C. searching D. standing
7.A. raise B. feed C. ride D. examine
8.A. honor B. shame C. joy D. sorrow
9.A. showing B. pointing C. striking D. telling
10.A. study B. bedtimes C. work D. mealtimes
11.A. completely B. exactly C. correctly D. strictly
12.A. invited B. enjoyed C. allowed D. remembered
13.A. called B. left C. arrived D. started
14.A. surprised B. disappointed C. calm D. excited
15.A. officers B. friends C. neighbors D. guests
16.A. when B. whether C. why D. where
17.A. phone B. bell C. alarm D. watch
18.A. secretary B. assistant C. colleague D. boss
19.A. active B. major C. essential D. leading
20.A. just now B. on time C. right away D. at last
高二英语完形填空简单题查看答案及解析
Everyone makes mistakes in life, but for whales and dolphins, the “mistake” of landing on the shore costs the highest price---their lives.
People living along the coast of Australia and New Zealand have been shocked and saddened by the number of whales and dolphins that they have found on their beaches recently. Since November 28th, 96 whales and dolphins have died in Australia and 53 whales died in New Zealand. Although 20 whales were saved, some of these were not expected to live, as they were too weak to swim with the others back to sea.
Bob Brown, leader of Australia’s Green party, said the mass beaching was caused by the recent “sound bombing” of the ocean floor between the two countries. This is a method of testing for oil and gas reserves (储藏量).
But mass beaching of whales has long puzzled scientists. Typically most members of the stranded (搁浅) group will appear to be perfectly healthy. “Some researchers believe that close relationship within the group causes the problem, if one gets into trouble, the others will not leave” said Shery Gibney, a leading biologist in New Zealand. “Some will come in and try and assist it; if they get trapped on the beach, then more will come.”
Another common theory is that the whales’ navigation (导航) system are thought to break down in some way. It has been said that whales follow electromagnetic (电磁的) patterns in the sea-bed. The whales can get confused because these patterns sometimes change. That would be a bit like a new roundabout (环状交叉路) being built on a road you were used to driving on. You might be confused for a minute when you come to it for the first time, and you might even take a wrong turning before getting back on your route.
A different idea is that when whales chase fish for food they end up in shallow waters because they are not paying attention to where they are going.
And yet, from time to time a group will swim on purpose into shallow waters and end up on the beach, where they die. If returned to the sea, some whales often show great determination in restraining themselves.
1.________ whales and dolphins would probably die in this mass beaching along the coast of Australia and New Zealand.
A. Less than 100 B. Less than 150 C. More than 150 D. 149
2.Which of the following can be used to explain the term “sound bombing”?
A. The terrible sound that is caused in the war between two countries.
B. Human activities that aim to explore the ocean floor.
C. The loud sound that whales and dolphins make.
D. The earthquakes that happen on the ocean floor.
3.Which of the following couldn’t probably lead to the mass beaching of whales?
A. A change in the electromagnetic patterns that whales follow.
B. New roundabout being built on a road.
C. Their full attention to the search for food.
D. Exploiting natural resources in oceans.
4.The passage is mainly about _______.
A. that whales and dolphins may make mistakes as well as human beings
B. how scientists have found the reasons for the mass beaching of whales
C. how human beings make use of the ocean resources
D. why the mass beaching of whales happens
高二英语阅读理解简单题查看答案及解析
Whether life will continue on the earth for millions of years ______will depend on ____this problem can be solved.
A. to come; if B. coming; if C. to come; whether D. coming; whether
高二英语单项填空简单题查看答案及解析
Here is some news of the future.
March 20,2035
There was a lot of news around the life extension drugs that hit the market a decade ago.They didn’t promise that you would live forever,but they gave you a chance to extend your life an extra five to ten years.Even though the life expectancy rate at birth has increased greatly,the life expectancy for seniors hasn’t improved that much.Basically,you have a greater chance to become a senior,but you will not have a much longer lifespan,and this is where the anti-aging drugs intend to kick in.So,do the anti-aging drugs work?Well,it is too early to tell.But the sales so far are very good.
April 19,2035
Of the total US population of 378 million,people over 65 years old now make up 20% for the first time.The senior ratio was only 4.1% by the year 1900,and 12.4% 30 years ago.The number of people above 65 compared to those of what is considered working ages,between 15 and 64,is currently 33.7%.This is up from 18.5% in the year 2005,which means that for every retired person there are now two workers,compared to four workers 30 years ago.The number of people above the age of 80 has grown to 23.8 million,making them 6.3% of the total population compared to 3.6% in 2005.
April 12,2040
Although introduced in the market only five years ago,10% of all hydrogen fuel now sold in the US is of the environmentally friendly Re-Hydro label,produced through electrolysis(电解)based on a source of 100% renewable energy.Several producers have turned to producing Re-Hydro,mainly because of lower tax,which also keeps the price of Re-Hydro on the same level as regular hydrogen.Most analysts believe that Re-Hydro will be the dominating fuel in the future.
1.According to News 1 we know that the life extension drugs .
A.were first sold in the year 2025
B.were made to make people live forever
C.should be taken when people are young
D.have greatly increased the life expectancy rate at birth
2.The sales of the life extension drugs so far clearly show that .
A.people have no faith in them B.people want to give them a try
C.they work very well for seniors D.they have no effect on people’s health
3.What can we learn from News 2?
A.Many Americans will find it hard to find a job.
B.It’s very hard for seniors to pass the age of 80.
C.The US population has been increasing rapidly since 2005.
D.The American population has been aging rapidly since 2005.
4.What can we infer from News 3?
A.Re-Hydro will not be widely used in the future.
B.The government encourages production of Re-Hydro.
C.Producers are not interested in producing Re-Hydro.
D.Re-Hydro is more expensive than regular hydrogen.
高二英语阅读理解中等难度题查看答案及解析
Here is some news of the future.
March 20, 2035
There was a lot of news around the life extension drugs that hit the market a decade ago. They didn't promise that you would like forever, but they gave you a chance to extend your life an extra five to ten years. Even though the life expectancy rate at birth has increased greatly, the life expectancy for seniors hasn't improved that much. Basically, you have a greater chance to become a senior, but you will not have a much longer lifespan, and this is where the anti-aging drugs intend to kick in. So, do the anti-aging drugs work? Well,it is too early to tell. But the sales so far are very good.
April 19, 2035
Of the total US population of 378 million, people over 65 years of age now make up 20% for the first time. The senior ratio of only 4.1% by year 1900, and 12.4% 30 years ago.
The number of people above 65 compared to those of what is considered working ages, between 15 and 64, is currently 33.7%. This is up from 18.5% since year 2005, which means that for every retired person there are now two workers, compared to four workers 30 years ago. The number of people above the age of 80 has grown to 23.8 million, making them 6.3% of the total population compared to 3.6% in 2005.
April 12, 2040
Although introduced in the market only five years ago, 10% of all hydrogen fuel now sold in the US is of the environmentally friendly Re-Hydro label, produced through eletrolysis(电解) based on a source of 100% renewable energy. Several producers have turned to producing Re-Hydro, mainly because of lower tax, which also keeps the price of Re-Hydro on the same level as regular hydrogen. Most analysts believe that Re-Hydro will be the dominating fuel in the future.
1.According to News 1 we know that the life extension drugs ____.
A.were first sold in the year 2025.
B.are made to make people live forever.
C.should be taken when people are young.
D.have greatly increased the life expectancy rate at birth.
2.The sales of the life extension drugs so far clearly show that_____.
A.people have no faith in them
B.people want to give them a try
C.they work very well for seniors
D.they have no effect on people’s health
3.What can we learn from News 2?
A.Many Americans will find it hard to find a job.
B.It’s very hard for seniors to pass the age of 80.
C.The US population has been increasing rapidly since 2005.
D.The US population has been aging rapidly since 2005.
4.We can know from the passage that the fuel of the Re-Hydro label is ______.
A.expensive B.cheap C.green D.dangerous
5.What can we infer from News 3?
A.Re-Hydro will be widely used in the future.
B.The government discourages the production of Re-Hydro.
C.Producers are not interested in producing Re-Hydro.
D.Re-Hydro is more expensive than regular hydrogen.
高二英语阅读理解中等难度题查看答案及解析