For all these years I have been working for o...

For all these years I have been working for others.I’m hoping I’ll　　　　　　 my own business someday.

A.turn up B.fix up C.set up D.make up

高三英语单项填空中等难度题查看答案及解析

In springtime, many Americans take on a major project: cleaning their homes from top to bottom. We often call this kind of work "spring cleaning." Part of spring cleaning often involves clearing out clutter (杂物). We do away with things we no longer need.

If we are to believe the many stories on Marie Kondo, the Queen of Clean, clutter adds unnecessary stress to our lives. Clutter is holding us back from our dreams and goals. 1.

An expert on the subject, Sabine Kastner of Princeton University, has been studying how the brain processes clutter for 20 years. The media, Kastner says, often writes about clutter in a very simple, black-and-white way: Clutter affects the mind and we need to clear it out. But it is much more complex than that. For starters, our brains are designed to deal with clutter. Very early in the development of our eyesight, we begin to group objects that we see. 2.

According to Kastner, there is not a one-size-fits-all solution. 3. In fact, some people need to see their work. If something is carefully put away, to them it does not exist anymore. Out of sight, out of mind. For other people, objects can stimulate their creativity and give them ideas.

4. Kastner notes that some people may get distracted by having lots of things around them. These people may need more organization and less clutter to work well.

5.Whether the area is cluttered or clear-they work the same. And for others it may depend on the project. For administrative work, they might need a clear workspace. But for more creative projects, they may need many things around them. It is complex.

A.But is it true?

B.What is working and what is not?

C.Some people do not care either way.

D.This helps us to structure our environment.

E.People need to be able to design their workplaces.

F.The idea that an uncluttered workplace is better, is not universally true.

G.However, other people are unable to work in a cluttered environment.

高三英语七选五中等难度题查看答案及解析

For years, scientists and others concerned about climate change have been talking about the need for carbon capture and storage (CCS).

That is the term for removing carbon dioxide(二氧化碳) from, say, a coal-burning power plant’s smokestack and pumping it deep underground to keep it out of the atmosphere, where it would otherwise contribute to global warming.

However, currently, only one power plant in Canada captures and stores carbon on a commercial scale (and it has been having problems). Among the concerns about storage is that carbon dioxide in gaseous or liquid form that is pumped underground might escape back to the atmosphere. So storage sites would have to be monitored, potentially for decades or centuries.

But scientists at Lamont-Doherty Earth Observatory at Columbia University and other institutions have come up with a different way to store CO2 that might eliminate that problem. Their approach involves dissolving the gas with water and pumping the resulting mixture — soda water, essentially — down into certain kinds of rocks, where the CO2 reacts with the rock to form a mineral called calcite(方解石). By turning the gas into stone, scientists can lock it away permanently. Volcanic rocks called basalts(玄武岩) are excellent for this process, because they are rich in calcium, magnesium and iron, which react with CO2.

The project called CarbFix started in Iceland, 2012, when the scientists pumped about 250 tons of carbon dioxide, mixed with water, about 1,500 feet down into porous basalt. Early signs were encouraging: The scientists found that about 95 percent of the carbon dioxide was changed into calcite. And even more importantly, they wrote, the change happened relatively quickly — in less than two years.

“It’s beyond all our expectations,” said Edda Aradottir, who manages the project. Rapid change of the CO2 means that a project would probably have to be monitored for a far shorter time than a more conventional storage site.

There are still concerns about whether the technology will prove useful in the fight against global warming. For one thing, it would have to be scaled up enormously. For another, a lot of water is needed — 25 tons of it for every ton of CO2 — along with the right kind of rock.

But the researchers say that there is enough porous basaltic rock in Iceland, including in the ocean floors and along the margins of continents. And sitting a storage project in or near the ocean could potentially solve the water problem at the same time, as the researchers say seawater would work just fine.

1.What can we learn about CCS in Paragraphs 2 and 3?

A. Scientists believe global warming will be avoided if CO2 is pumped underground.

B. It’s been a common practice in many plants to capture and store CO2 underground.

C. There is no guarantee that CO2 will not escape even if pumped underground.

D. It requires decades to turn CO2 into liquid form and be locked underground.

2.What materials should be involved in the project CarbFix?

A. Water, CO2, soda water and basalts.

B. Water, CO2, a pump and basalts.

C. CO2, basalts, a pump and calcite.

D. Water, soda water, a pump and calcite.

3.According to Edda Aradottir, the result of the project was beyond the researchers’ expectations, because ________.

A. it’s disappointing to discover new problems caused by rapid change

B. it’s exciting to sense the problem of storing CO2 likely to be solved

C. it’s puzzling to find the encouraging but unexpected result of the project

D. it’s amazing to see 95% of the carbon dioxide turn into calcite that fast

4.What is the author’s purpose in writing the passage?

A. To show the different ways to fight against CO2.

B. To praise the efforts of scientists in storing CO2.

C. To inform us of a breakthrough in storing CO2.

D. To urge people to produce the least possible CO2.

高三英语阅读理解中等难度题查看答案及解析

Having been working for a famous multinational for years, I have 　　　　　　 considerable knowledge and rich experience in this field.

A. attained　　 B. distributed

C. grasped　　 D. Conveyed

高三英语单项填空中等难度题查看答案及解析

For more than twenty years scientists have been searching for signs of life on other planets. Most of these searches have been done over the radio. The hope is that someone in outer space may be trying to get in touch with us. Scientists also have sent radio and television messages on spaceships traveling through space, on the chance that someone may be receptive to such messages.

Scientists are using powerful radio telescope to listen to signals from about 1,000 stars, all within 100 light years of earth. In addition, they will scan (扫视) the entire sky to “listen” for radio messages from more distant stars. Using a computer, they will be able to monitor more than eight channels at one time. Scientists are looking for any signal that stands out from the background noise.

Of the 200 billion stars in the Milky Way galaxy, scientists find that five percent are like our sun. Perhaps half of them have a planet like earth. Such a planet would be a reasonable distance from the star for temperatures to be right for the evolution (进化) of life. Based on the inhabitable (that can be lived in) planets in our galaxy, most scientists agree that chances are likely that one or more of these planets support some life.

However, many scientists wonder whether intelligent life exists on other planets. Some believe that twenty years of searching without any intelligible messages shows that no one is out there. They say that the evolution of intelligence comparable to ours is unlikely.

Other scientists believe that our search hasn’t been long enough to rule out the possibility that intelligent life exists in our galaxy. Although our sun family in only about five billion years old, our galaxy is about 20 billions years old. In that time, some scientists think it is likely that civilizations are much more advanced than ours. Perhaps these civilizations send us no signals; perhaps we have not recognized the signals they have sent us. If we hope to find intelligent life, these scientists believe that we have to keep looking.

1.According to the passage, how many planets in our galaxy might be inhabitable?

A. 15 billion.　　 B. 10 billion.

C. 5 billion　　 D. 200 billion

2.The first paragraph in this passage is mainly about　　 ________.

A. why scientists are looking for signs of life on other planets

B. how scientists are looking for signs of life on other planets

C. where scientists are looking for signs of life on other planets

D. when scientists are looking for signs of life on other planets

3.The underlined word “monitor” in the passage means “________”.

A. find　　 B. follow

C. form　　 D. check

4.Which of these statements is True based on the information in the passage?

A. Scientists are tying different ways to find signs of life on other planets.

B. Most scientists believe that there is intelligent life on other planets.

C. The earth is one of the oldest planets in our galaxy.

D. Scientists don’t believe that there might be life on other planets.

高三英语阅读理解中等难度题查看答案及解析

For more than twenty years scientists have been searching for signs of life on other planets. Most of these searches have been done over the radio. The hope is that someone in outer space may be trying to get in touch with us. Scientists also have sent radio and television messages on spaceships traveling through space, on the chance that someone may be receptive to such messages.

Scientists are using powerful radio telescope to listen to signals from about 1,000 stars, all within 100 light years of earth. In addition, they will scan (扫视) the entire sky to “listen” for radio messages from more distant stars. Using a computer, they will be able to monitor more than eight channels at one time. Scientists are looking for any signal that stands out from the background noise.

Of the 200 billion stars in the Milky Way galaxy, scientists find that five percent are like our sun. Perhaps half of them have a planet like earth. Such a planet would be a reasonable distance from the star for temperatures to be right for the evolution (进化) of life. Based on the inhabitable (that can be lived in) planets in our galaxy, most scientists agree that chances are likely that one or more of these planets support some life.

However, many scientists wonder whether intelligent life exists on other planets. Some believe that twenty years of searching without any intelligible messages shows that no one is out there. They say that the evolution of intelligence comparable to ours is unlikely.

Other scientists believe that our search hasn’t been long enough to rule out the possibility that intelligent life exists in our galaxy. Although our sun family in only about five billion years old, our galaxy is about 20 billions years old. In that time, some scientists think it is likely that civilizations are much more advanced than ours. Perhaps these civilizations send us no signals; perhaps we have not recognized the signals they have sent us. If we hope to find intelligent life, these scientists believe that we have to keep looking.

1.According to the passage, how many planets in our galaxy might be inhabitable?

A.15 billion. B.10 billion.

C.5 billion. D.200 billion

2.The first paragraph in this passage is mainly about　　 ________.

A.why scientists are looking for signs of life on other planets

B.how scientists are looking for signs of life on other planets

C.where scientists are looking for signs of life on other planets

D.when scientists are looking for signs of life on other planets

3.The underlined word “monitor” in the passage means “________”.

A.find B.follow

C.form D.check

4.Which of these statements is True based on the information in the passage?

A.Scientists are tying different ways to find signs of life on other planets.

B.Most scientists believe that there is intelligent life on other planets.

C.The earth is one of the oldest planets in our galaxy.

D.Scientists don’t believe that there might be life on other planets.

高三英语阅读理解中等难度题查看答案及解析

Principal White has been working in the school for about 20 years, ____all his energy to teaching and researching as well as the running of a healthy school.

A．devoted 　　　　　　　　　 B．devoting

C．to devote 　　　　　　　　 D．devote

高三英语单项填空中等难度题查看答案及解析

Principal White has been working in the school for about 20 years, ____all his energy to teaching and researching as well as the running of a healthy school.

A．devoted  B．devoting  C．to devote  D．devote

高三英语单项填空中等难度题查看答案及解析

Principal White has been working in the school for about 20 years, ________all his energy to teaching and researching as well as the running of a healthy school．

A. devoted          B. devoting     C. to devote     D. and devote

高三英语单项填空中等难度题查看答案及解析

Having been out of work for two years because of poor health，I decided to look for a part time job．

I 　　　 and interviewed again and again with no progress．I was getting pretty 　 　　　 .

It was freezing cold last Tuesday evening．I was waiting at a(n) 　　　 when I saw a young woman wearing just a T-shirt and no 　　　 .I asked if she needed any 　　　 ．She told me she had lost everything in a big fire and had been 　　　 for two days.

I dug in my 　　　 and took out$5．00 so she could get something to eat．I then took off my 　　　 and shoes and gave them to her．She looked at me and said，“Aren’t you，going to be cold?” I told her，it would be worth it if they could keep her a little bit 　　　 ．She was moved to tears and thanked me with a 　　　 ．

Then as I got on the bus the miracle(奇迹)of 　　　 kindness happened．When I was to 　　　 the fare，the bus driver said with a smile，“Madam，I saw what you just did and your 　　　 is on me．”

I 　　　 my thanks and was about to sit down when a lady dressed in a business suit said to me，“You just did the most 　　　 thing I have ever seen．What can I do for you?”I jokingly said a 　　　 job would be nice．She asked for my name and said she might be able to 　　　 something out．

The next day she 　　　 me，saying she had a part-time position 　　　 in her company and wanted me to come in and meet with the manager that day．I had started my act of kindness just to make myself feel good，but I never expected to get so much 　　　 !

1.A．dressed　　　　 B．begged　　　　 C．applied　　　 D．explained

2.A．surprised　　　 B．discouraged　 C．refreshed　 D．frightened

3.A．bus stop　　 B．subway station　 C．local park　　 D．office building

4.A．socks　　　　 B．shoes　　　　 C．gloves　　 D．glasses

5.A．advice　　　　 B．work　　　　 C．information　 D．help

6.A．walking　　　　 B．moving　　　　 C．surviving　　　 D．starving

7.A．purse　　　　 B．room　　　　 C．book　　　　 D．hand

8.A．glasses　　　　 B．coat　　　　 C．watch　　 D．hat

9.A．happier　　　　 B．smarter　　　　 C．warmer　　 D．healthier

10.A．smile　　　　 B．hug　　　　 C．jump　　 D．gift

11.A．spreading　　　 B．praising　　　　 C．enjoying　　 D．accepting

12.A．change　　　　 B．check　　　　 C．borrow　　 D．pay

13.A．bill　　　　 B．debt　　　　 C．rent　　 D．fare

14.A．delivered　　　 B．accepted　　　　 C．felt　　　　 D．expressed

15.A．unbelievable　　 B．ordinary　　　　 C．inspiring　　 D．reasonable

16.A．paying　　　　 B．comfortable　　　 C．tough　　　　 D．challenging

17.A．work　　　　 B．pick　　　　 C．find　　 D．keep

18.A．visited　　　　 B．met　　　　　　 C．invited　　　 D．called

19.A．empty　　　　 B．open　　　　 C．absent　　　 D．free

20.A．after all　　　 B．for nothing　　　 C．in return　　　 D．by chance

高三英语完形填空中等难度题查看答案及解析