An American spacecraft is moving closer to a ...

An American spacecraft is moving closer to a dwarf planet(矮行星)called Ceres(谷神星). The American space agency's Dawn spacecraft is set to reach the planet-like object in March.

Space agency scientists will then place Dawn in an orbit(轨道) around the dwarf planet. Agency scientists want to know more about ice on Ceres. The spacecraft will gather clues about whether Ceres may have once had conditions to support life as we know it.

Dawn left Earth more than seven years ago on a trip to explore Ceres and another dwarf planet, called Vesta(灶神星). Both dwarf planets are in the main belt of asteroids(小行星), a group of large objects, between the planets Mars and Jupiter.

Marc Rayman is the chief engineer and director of the Dawn mission.

Scientists call Vesta and Ceres "protoplanets(行星) ". Mr. Rayman says they were in the process of becoming full-size planets when, in his words, "their growth was terminated(终止)."

Scientists believe Ceres is made of rock, and covered with ice.

The Dawn mission is based in Los Angeles, California. Scientists there send second-by-second commands to the spacecraft. They direct its every move, including telling it what pictures to take. Dawn will make a map of the dwarf planet. It will also try to discover how Ceres' surface has changed.

Carol Raymond is the deputy principal investigator(副首席研究员) of the project. He says Dawn made an unexpected discovery while orbiting Vesta.

"Instead of being bone dry, which we expected, there were patches on the surface of Vesta that showed significant amounts of water bound in the rocks and possibly even free water that could have flowed on the surface in the past."

She says that if Earth's water came from wet worlds like Vesta and Ceres, then life could have developed there, too.

If Dawn finds that the environment of Ceres could have supported life, scientists may seek to explore the dwarf planet with other scientific instruments.

Dawn will gather information about Ceres until the middle of 2016. It will then continue to orbit the small planet.

1.Which of the following about spacecraft Dawn is true?

A. It was sent into space in 2008.

B.　 It is orbiting around the dwarf planet Ceres.

C.　 Its destination is just the dwarf planet Ceres.

D.　 It will gather information about Ceres until early 2016.

2.What’s the meaning of the underlined word “patches”?

A. spots　　　 B. roles　　　 C. sorts　　　 D.　 kinds

3.What do we know about Vesta?

A.　 It is in the main belt of asteroids between the planets Mars and Venus.

B.　 It is another dwarf planet which Dawn will explore.

C.　 It is becoming a full-size planet.

D.　 It is made of rock, and covered with ice.

4.The passage mainly tells us ______.

A.　 Spacecraft , Dawn, is researching Ceres.

B.　 What Spacecraft , Dawn,　 is.

C. NASA Spacecraft, Dawn, is moving closer to a 'Dwarf Planet'.

D. How Dwarf Planet research program is carried out.

高一英语阅读理解中等难度题查看答案及解析

Slowly but surely, we’re moving closer and closer to 5G world. From smart-home security to self-driving cars, all the internet-connected devices in your life will be able to talk to each other at lightning-fast speeds with reduced delay, Objectively speaking, the fastest 4G download speeds in the U. S. top out at an average of 19.42 Mbps. But by comparison 5G promises gigabit (千兆) speeds.

“5G is one of those signs, along with artificial intelligence, of this coming data age,” said Steve Koenig, senior director of market research for the Consumer Technology Association. “The self-driving vehicle is a great emblem of this data age, and that is to say, it is a sign of time, because with one single task, driving, you have massive amounts of data coming from the vehicle itself, and a variety of sensors are collecting a lot of information to model its environment as it moves. It’s pulling in data from other vehicles about road conditions down the lane. It could be weather information, but also connected infrastructure (基础设施) construction. There’s lots of data behind that task, which is why we need high speed.

Augmented reality glasses and virtual headset haven’t yet broken the mainstream, but tech companies are joyfully betting that these devices will eventually replace our smartphones. With 5G, that could actually happen. This is notable because companies such as Apple are reportedly developing AR glasses to assist — or perhaps even replace — smartphones.

Ericsson stated at February’s Mobile World Congress how smart glasses could become faster and lighter with a 5G connection, because instead of being weighed down with components, the glasses could rely on hardware for processing power.

But don’t get too excited. There’s still a lot of work to be done in the meantime, including various trials to make sure the radios play nicely with hardware and infrastructure construction so 5G isn’t concentrated only in big cities.

1.What does the author want to stress in Paragraph 1?

A.The lighting-fast speed of 5G.

B.The expectation of 5G world.

C.The difference between 4G and 5G.

D.The internet-connected devices in our life.

2.What does the underlined word “emblem” in Paragraph 2 mean?

A.Exhibition. B.Success.

C.Symbol. D.Explanation.

3.We can infer from the text that ________.

A.5G world won’t come without AR glasses

B.5G helps to create the artificial intelligence vehicle

C.Apple company is developing AR glasses worldwide

D.Tech companies will face the fact that smartphones may be replaced

4.What will the author probably tell us next?

A.How to fully expand 5G coverage.

B.Smart glasses will become faster and lighter.

C.Why 5G isn’t concentrated in big cities.

D.The importance of infrastructure construction.

高一英语阅读理解中等难度题查看答案及解析

Mars is the planet most like Earth.Flying to Mars is a difficult task for humans.

There is an experiment with the name “Mars 500” in Russia.Six volunteers take part in the experiment.They come from China, Russia, France and Italy.They won’t go to outer space.They will stay in small modules (太空舱) on the ground for 520 days.It’s just like a real journey

In the modules, they will experience a lot: flying to Mars, flying back and working on Mars.During the long “journey”, the volunteers can only eat space food.They can shower every 10 days.They can call their friends or families.Anyone of them can quit if he doesn’t feel well.This experiment helps scientists know how well humans will be on a long journey to Mars.

Wangyue, 26, from China, is the youngest of the volunteers.He is a teacher at the China Astronaut Research and Training Center (中国航天员科研训练中心) in Beijing.

1.Where are these volunteers from?

A.They are from China and Russia.

B.They are from France and Italy

C.They are from China and France.

D.Both A and B.

2.Which of the statement is Not True?

A.The volunteers are not going to move to outer space.

B .The volunteers will stay on the Mars for more than 17 months.

C.The volunteers can make video calls to their friends and families

D.The name of the experiment is “Mars 500”.

3.How often can the volunteers take a shower?

A.three times a month　　 B.three times a day

C.ten days a month　　　　 D.ten times a month

4.what’s the meaning of the underlined word “quit”?

A.放弃　　　　 B.丢弃　　　　 C.尝试　　　　　 D.试验

5.Where can you read the article?

A.story book　　　　　　　 B.geography magazines

C.science magazines　　 D.magazines about ET

高一英语阅读理解中等难度题查看答案及解析

Having an outdoor meal is always fun, but it can also be damaging to the planet if__________.

A.planned not carefully B.not planning carefully

C.not planned carefully D.not to be planned carefully

高一英语单项填空困难题查看答案及解析

Having an outdoor meal is always fun, but it can also be damaging to the planet if__________.

A. planned not carefully　　 B. not planning carefully

C. not planned carefully　　 D. not to be planned carefully

高一英语单项填空困难题查看答案及解析

Tracy Caulkins is known as the first American to set an American record and win an American title in each of four swimming strokes（泳姿）: breaststroke, butterfly, backstroke, freestyle.

Tracy Caulkins was born in Minnesota and lived in Iowa until she was six. She began swimming when she was eight, after the family had moved to Nashville, Tennessee. While unwilling at first to swim in cold water or get her face wet, she began to train in earnest (认真地) as her talent became clear. Though her father worked for the public schools, the family sent her to a private school when the public schools could not accommodate (适应) her training schedule.

At age 13, Tracy Caulkins took part in the trials(选拔赛) for the 1976 Olympics, but did not make the team. She continued to win national and international titles, and was disappointed in 1980 when the U.S. didn’t attend the Moscow Olympics. She continued to train and compete.

In 1981, Tracy Caulkins began college, graduating in 1985. In college, she continued competing and training, though she had slowed down from her peak (顶峰) years.

Caulkins trained especially hard for the 1984 Olympics, and not only made the team, but was captain of the swim team and at Los Angeles, won three gold medals and was named Sportswoman of the Year by the U.S. Olympic Committee. After that she retired from swimming, and was a commentator (解说员) for swimming events as well as taking advantage of her fame to do business.

Tracy Caulkins married Australian swimmer, Mark Stockwell, in 1991, their romance having begun at the 1984 Olympics when he jumped into a warm-up pool to introduce himself. They married in Nashville and moved to Australia, where they had three children. Caulkins continued to be professionally involved in sports.

1.Tracy Caulkins was sent to a private school because _____.

A. the schedule of the public school wasn’t suitable for her

B. her parents had to work in the school

C. her family had moved to Nashville, Tennessee

D. she showed strong interest in swimming

2.Which Olympic Games did Tracy Caulkins attend?

A. The 1976 Olympic Games.              B. The 1980 Olympic Games.

C. The 1984 Olympic Games.                        D. The 1992 Olympic Games.

3.Give the correct order of the following events in Tracy Caulkins’ life.

a. She was named Sportswoman of the Year.

b. She became a commentator.

c. She got married.

d. She went to college.

e. She attended the Olympics.

A. d; e; a; b; c     B. d; e; c; b; a               C. d; a; e; c; b                  D. d; e; a; c; b

4.When was Tracy Caulkins born?

A. In 1963                   B In 1953           C In 1960           D Not mentioned

高一英语阅读理解中等难度题查看答案及解析

Tracy Caulkins is known as the first American to set an American record and win an American title in each of four swimming strokes（泳姿）: breaststroke, butterfly, backstroke, freestyle.

Tracy Caulkins was born in Minnesota and lived in Iowa until she was six. She began swimming when she was eight, after the family had moved to Nashville, Tennessee. While unwilling at first to swim in cold water or get her face wet, she began to train in earnest (认真地) as her talent became clear. Though her father worked for the public schools, the family sent her to a private school when the public schools could not accommodate (适应) her training schedule.

At age 13, Tracy Caulkins took part in the trials(选拔赛) for the 1976 Olympics, but did not make the team. She continued to win national and international titles, and was disappointed in 1980 when the U.S. didn’t attend the Moscow Olympics. She continued to train and compete.

In 1981, Tracy Caulkins began college, graduating in 1985. In college, she continued competing and training, though she had slowed down from her peak (顶峰) years.

Caulkins trained especially hard for the 1984 Olympics, and not only made the team, but was captain of the swim team and at Los Angeles, won three gold medals and was named Sportswoman of the Year by the U.S. Olympic Committee. After that she retired from swimming, and was a commentator (解说员) for swimming events as well as taking advantage of her fame to do business.

Tracy Caulkins married Australian swimmer, Mark Stockwell, in 1991, their romance having begun at the 1984 Olympics when he jumped into a warm-up pool to introduce himself. They married in Nashville and moved to Australia, where they had three children. Caulkins continued to be professionally involved in sports.

1.Tracy Caulkins was sent to a private school because _____.

A．the schedule of the public school wasn’t suitable for her

B．her parents had to work in the school

C．her family had moved to Nashville, Tennessee

D．she showed strong interest in swimming

2.Which Olympic Games did Tracy Caulkins attend?

A．The 1976 Olympic Games.                 B．The 1980 Olympic Games.

C．The 1984 Olympic Games.                 D．The 1992 Olympic Games.

3.Give the correct order of the following events in Tracy Caulkins’ life.

a. She was named Sportswoman of the Year.

b. She became a commentator.

c. She got married.

d. She went to college.

e. She attended the Olympics.

A．d; e; a; b; c                            B．d; e; c; b; a

C．d; a; e; c; b                            D．d; e; a; c; b

4.When was Tracy Caulkins born?

A．In 1963           B．In 1953           C．In 1960           D．Not mentioned

高一英语阅读理解中等难度题查看答案及解析

A lazy Susan is an addition to a table that is designed to assist in moving food from one person to another while dining. This is achieved through the use of a turntable (转盘), which usually moves the food in a circle when it is pushed by those at the table. In this way, the food never has to be picked up and passed around the table. Instead, it remains in place on the lazy Susan.

A lazy Susan may also be a part of a kitchen cabinet (橱柜). In this sense, the lazy Susan is a type of shelving unit within the cabinet that is able to turn around its axis(轴心) . One may turn the lazy Susan in order to find certain goods in storage. From the outside, a lazy Susan appears to be two cabinets that are located at a right angle (直角) to each another. When one of these cabinets is pushed, however, both doors move and the lazy Susan is revealed inside.

It is believed that Thomas Jefferson invented the lazy Susan in the 18th century, though it was called “dumbwaiter” at that time. It is said that Jefferson invented the lazy Susan because his daughter complained she was always served last at table and, as a result, never found herself full when leaving the table. Others believe that Thomas Edison was the inventor, as he is believed to have invented the turntable for his phonograph (留声机). The turntable may have developed into the lazy Susan later.

Regardless of who invented it, it wasn’t until 1917 that the term “lazy Susan” was used in an advertisement for the invention. In Britain, however, the term “dumbwaiter” is still used rather than “lazy Susan”. The reason for the naming of it is still a mystery. One theory is that it was named after either Jefferson’s or Edison’s daughter, both of whom were named Susan.

1.What is a “lazy Susan”?

A. A waitress           B. A convenient tool        C. A table      D. A cabinet

2.According to those who believed Thomas Jefferson invented the lazy Susan, _______.

A. his daughter was very lazy               B. the lazy Susan didn’t exist until the 18th century

C. Thomas Edison was his friend         D. Thomas Edison didn’t invent the phonograph

3.We can learn from the last paragraph that ___________.

A. the lazy Susan can work by itself

B. the lazy Susan was named after Thomas Edison’s daughter

C. how the lazy Susan got its name remains unknown

D. the lazy Susan was invented in Britain

4. The writer wrote the passage mainly to _________.

A. discuss how the lazy Susan was named     B. teach us how to make a lazy Susan

C. introduce Thomas Edison’s inventions D. tell us what a lazy Susan is and its origin

高一英语阅读理解中等难度题查看答案及解析

An Indian spacecraft's first attempt to make a soft, controlled landing in the moon's south polar region has ended in painful silence: Shortly before touchdown (降落), the robotic lander - part of the Chandrayaan-2 mission - fell out of contact with mission control(航天地面指挥中心). The Indian Space Research Organization says that the spacecraft stopped communicating with Earth when it was within 1.3 miles of the lunar surface. ''The Vikram descent (下降)was as planned, and normal performance was observed, up to an altitude of 2.1 kilometers, '' said Kailasavadivoo Sivan, ISRO's chairman, in a statement roughly half an hour after signal loss. ''The data is being analyzed.''

A successful landing would have made India just the fourth country to touch down anywhere on the lunar (月球的)surface, and only the third nation to operate a robotic rover (巡视器) there. Nevertheless, the Chandrayaan-2 mission's orbiter(航天器) remains safely in lunar orbit, with a year-long scientific mission ahead of it. Like any voyage to a world beyond Earth, Vikram's flight was a risky endeavor, requiring the lander to slow itself down to a near standstill(停止), scan for surface obstacles (障碍物) by itself, and then take steps to avoid them during touchdown. The majority of attempts to land robots on the moon have ended in failure, either during launch or on the way to the surface.

Following its launch on July 22, Chandrayaan-2 spent the last several weeks inching its way to the moon, ultimately entering lunar orbit on August 20. On September 2, Vikram separated from the mission's orbiter, and the newly freed lander began a series of braking maneuvers (刹车操作)to lower its orbit and ready itself for landing. Had things proceeded without a fault, Vikram and Pragyaan - the small solar-powered rover it carried - would have set down on the moon at a latitude of about 70 degrees South, on a highland between Manzinus C and Simpelius N.

This landing site was ''somewhere new that we haven't seen before, so that makes it another area for ground-truthing remote sensing data,'' Clive Neal, a lunar geologist, said in an interview before the landing attempt, ''It was going to certainly enhance our knowledge of what the moon is like in those areas, so it was going to be another very good place for science and exploration.''

1.What happened to the lunar lander according to paragraph 1?

A.It made a soft landing. B.It got data from the lunar surface.

C.It lost contact with Earth. D.It lowered itself at a wrong altitude.

2.Why was the Vikram's flight a risky endeavor?

A.It demanded higher technique.

B.There were not enough funds to support it.

C.Few Indian scientists agreed with the voyage.

D.No country has succeeded in landing robots on the moon.

3.What can we learn about Vikram from the third paragraph?

A.It entered lunar orbit four weeks after its launch.

B.It landed on the moon at an altitude of about 70 degrees South.

C.It separated from the mission's orbiter before entering the lunar orbit.

D.It lowered its orbit by starting the braking maneuvers to prepare for its landing.

4.What's Clive Neal's attitude towards the landing?

A.Doubtful. B.Positive. C.Neutral. D.Negative.

高一英语阅读理解困难题查看答案及解析

Last year I went to America and stayed there with an American family for two months.

As is said, “The best house is in America, the best wife is in Japan, and the best food is in China.” So I ________ pride and pleasure to ________ “the best food” for my American family. Each day, regardless of my poor skill of cooking, I would do something in a ________ way: changing the dishes color, the meat’s type or the soup’s style. Thus, my American friends could discover the ________ of eating Chinese food. Because of my “________” job, I was often rewarded by their ________ of thanks such as “very delicious”, “excellent”, etc.

________ something funny happened yesterday when I cooked Sichuan style fish for dinner. I was ________ with my work.

When the whole family sat round the table, they first looked ________ at the fish, then looked at me. “Why do all the fish have their ________？” they asked，“It’s terrible!”

________ or terrible？I can’t understand. But I do know that fish heads are delicious. The head is the ________ part of fish; in ________ only the important guest can have the ________ of enjoying it.

Another ________ thing is: the American friends often said to me“________ ”as they ________ home fruits or other things. According to Chinese tradition I would simply smile in answer to their kindness ________ actually helping myself to any of the food. ________, I said “help yourself” to them whenever I brought home fruits. Dear me! No matter how much or how often I brought home food, as long as it was nice to their taste, they ________ hesitated (犹豫)to use their hands to “help themselves” until all was finished.

1.A. took            B. shared            C. held            D. had

2.A. leave            B. fetch                C. cook            D. buy

3.A. simple            B. new                C. same            D. magic

4.A. importance        B. joy                C. trouble        D. way

5.A. new                B. daily                C. good            D. hard

6.A. smile            B. flowers            C. talk            D. expressions

7.A. However            B. But                C. So            D. And

8.A. surprised        B. pleased            C. strict        D. proud

9.A. worriedly        B. excitedly            C. surprisedly    D. happily

10.A. heads            B. skins                C. tails            D. bones

11.A. Particular        B. Wonderful            C. Comfortable    D. Beautiful

12.A. biggest        B. best                C. dearest        D. lightest

13.A. the West        B. China                C. USA            D. the East

14.A. ability        B. safety            C. chance        D. honor

15.A. enjoyable        B. exciting            C. interesting    D. common

16.A. dear me                            B. excuse me

C. help yourself                        D. enjoy yourself

17.A. collected        B. wanted            C. bought        D. brought

18.A. and            B. but                C. without        D. not

19.A. In return        B. Above all            C. After all        D. At last

20.A. always            B. often                C. never            D. usually

高一英语完形填空中等难度题查看答案及解析