I have been living in the United States for t...

I have been living in the United States for twenty years,but seldom _______ so lonely as now.

A.have I felt            B.I had felt            C.I have felt            D.had I felt

高一英语单项填空中等难度题查看答案及解析

The past 70 years have been good for corn production in the Midwestern United States, with yields increasing fivefold since the 1940s. Much of this improvement has been credited to advances in farming technology but researchers at Harvard University are asking if changes in climate and local temperature may be playing a bigger role than previously thought.

In a newspaper, researchers find that a prolonged(延长的) growing season due to increased temperatures, combined with the natural cooling effects of large fields of plants, have had a major contribution to improved corn production in the U.S. “Our research shows that improvements in crop yields depend, in part, on improvements in climate,” said Peter Huybers, professor of Earth and Planetary Sciences. “In this case, changing temperatures have had a beneficial impact on agricultural production, but there is no guarantee that benefit will last as the climate continues to change.

Understanding the detailed relationships between climate and crop yields is important as we move towards feeding a growing population on a changing planet. ” The researchers modeled the relationship between temperature and crop yields from 1981 to 2017 across the so-called Corn Belt. They found that as temperatures increased due to global climate change, planting days got earlier and earlier, shifting by about three days per decade. Early planting means the corn has more time to mature before the end of the growing season.

There is also a second, more surprising trend that has benefited corn yields. Whereas the vast majority of temperatures have warmed over the last century, the hottest days during the Midwestern growing season have actually cooled.

The researchers estimate that more than one quarter of the increase in crop yields since 1981 can be attributed to the twin effects of a longer growing season and less exposure to high temperatures, suggesting that the crop yield is more vulnerable to climate change than previously thought.

The researchers also show that the planting and harvest dates farmers currently use is significantly better adapted to the present climate than it would be to climates in earlier decades.

1.What is previously thought to be the reason for the increase of corn production?

A.Local temperature change. B.Advanced farming technology.

C.Climate change. D.Production efficiency.

2.Why is it important to understand the relationships between climate and crop yield?

A.The climate has a beneficial impact on agriculture.

B.We can change the climate to improve crop yield.

C.We depend on the climate to get food.

D.Crop yield relies less on the climate.

3.How many factors that benefit corn yields are mentioned in the text?

A.4. B.3.

C.2. D.1.

4.What is the main purpose of the text?

A.To explain a mystery. B.To question a common sense.

C.To show a new trend. D.To introduce a research result.

高一英语阅读理解中等难度题查看答案及解析

The home computer industry has been growing rapidly in the United States for the last ten years . Computers used to be large, expensive machines that were very difficult to use . But scientists and technicians have been making them smaller and cheaper while at the same time they have been made easier to use. As a result, their popularity has been increasing as more people have been buying computers for their homes and businesses. Computers have been designed to store information and compute problems that are difficult for human beings to work out. Some have voices that speak with the operators. Stores use computers to keep records of their inventories(库存货物) and to send bills to their customers(顾客) . Offices use computers to copy letters, record business and keep in touch with other offices. People have been using computers in their homes to keep track of the money they spend.

One important new use for computers is for entertainment(娱乐). Many new games have been designed to be played on the computers. People of all ages have been playing these games, People also have been buying home computers to play computer games, watch movies and listen to concerts at home. They have become very popular indeed.

1. Computers used to _____.

A. work rapidly                  B. be large and expensive

C. be easy to use                 D. be used for fun

2. In recent years , computers are being made ______.

A. larger and more expensive        B. smaller and cheaper

C. more difficult to use             D. to work more slowly

3. Home computers can be used for ______.

A. writing letters        B. playing games

C. doing business        D. all of the above

4. Salesmen use computers mainly to ______.

A. check the list of goods and materials that are kept in the store house

B. play games for pleasure

C. talk with their friends

D. write letters

高一英语阅读理解中等难度题查看答案及解析

If you live in the United States, the law says you can't have a full­time job until you are 16 years old. At 14 or 15, you can work part-time after school or on weekends, and during summer you can work 40 hours each week. Does all that mean that if you are younger than 14, you can't earn(赚) your own money? Of course not! Kids who are between the ages of 10 and 13 can earn money by doing lots of things.

Valerie, 11, told us that she made money by cleaning up other people's yards. Lena, 13, makes money by knitting(织) dog sweaters and selling them to her neighbors, and Riesa said she had started taking art classes and showing her work to people. People have asked her to draw pictures for them and they pay her for them. Jasmine, 13, writes articles for different magazines!

Earning is learning. By working to earn your own money, you are learning the skills you will need to succeed in life. These skills can include things like getting along with others, using technology(技术) and using your time. Some people think that asking for money is a lot easier than earning it; however, when you make your own money, you don't have to depend on someone else. The five dollars that you earn will probably make you feel a lot better in your hand than the twenty dollars you ask for.

1.Kids can have full­time jobs at the age of ________ in the USA.

A. 17　　 B. 14

C. 13　　 D. 10

2.According to the passage, which of the following is Not True?

A. You are learning how to succeed by working in your teens.

B. Kids are encouraged to live independently in the USA.

C. Earning one's money is better than asking for money from others.

D. Kids don't need to get along with others when making money.

3.From the passage we know that　 ________.

A. parents won't let their children earn their own money

B. it's hard for kids under 14 years old to earn money in the USA

C. kids can learn skills if they try to earn money on their own

D. if kids try to earn money, they won't have enough time to study

高一英语阅读理解中等难度题查看答案及解析

If you live in the United States, you can’t have a full-time job until you are 16 years old. At 14 or 15, you work part-time after school or on weekends, and during summer vacation you can work 40 hours each week. Does all that mean that if you are younger than 14, you can’t make your own money? Of course not! Kids from 10-13 years of age can make money by doing lots of things.

Valerie, 11, told us that she made money by cleaning up other people’s yards. Lena, 13, makes money by knitting(织) dog sweaters and selling them to her neighbors. Reisa said she had started taking art classes and showing her works to people. People ask her to draw pictures for them and they pay her for them. Jasmine, 13, writes articles for different magazines!

Kids can learn lots of things from making money. By working to make your own money, you are learning the skills you will need in life. These skills can include things like how to get along with others, how to use technology and how to use your time wisely. Some people think that asking for money is a lot easier than making it; however, if you can make your own money, you don’t have to depend on anyone else. The five dollars that you make will probably make you feel a lot better than the twenty dollars you ask for.

1.Kids can have full-time jobs at the age of______ in the USA.

A. 17　　　　　　 B.15　　　　　　　　 C. 14　　　　　　　　 D. 13

2.If you are 15 years old, you can’t work part-time______.

A. after school　　　　　　　　 B. on weekends

C. during school time　　　　 D. during summer vacation

3. Reisa makes money by_______.

A. cleaning up other people’s yard

B. drawing pictures for others

C. writing articles for different magazines

D. knitting dog sweaters.

4.According to the passage, which of the following is NOT true?

A. The writer thinks kids from 10-13 years of age can make money too.

B. Kids can learn how to use their time wisely by making money.

C. Kids don’t need to get along with others when making money.

D. Kids can learn skills if they try to make money on their own.

高一英语阅读理解中等难度题查看答案及解析

If you live in the United States, you can’t have a full-time job until you are 16 years old. At 14 or 15, you work part-time after school or on weekends, and during summer vacation you can work 40 hours each week. Does all that mean that if you are younger than 14, you can’t make your own money? Of course not! Kids from 10-13 years of age can make money by doing lots of things.

Valerie, 11, told us that she made money by cleaning up other people’s yards. Lena, 13, makes money by knitting(织) dog sweaters and selling them to her neighbors. Reisa said she had started taking art classes and showing her works to people. People ask her to draw pictures for them and they pay her for them. Jasmine. 13, writes articles for different magazines!

Kids can learn lots of things from making money. By working to make your own money, you are learning the skills you will need in life. These skills can include things like how to get along with others, how to use technology and how to use your time wisely. Some people think that asking for money is a lot easier than making it; however, if you can make your own money, you don’t have to depend on anyone else. The five dollars that you make will probably make you feel a lot better than the twenty dollars you ask for.

1. Kids can have full-time jobs at the age of______ in the USA.

A. 17        B.15           C. 14           D. 13

2. If you are 15 years old, you can’t work part-time______.

A. after school             B. on weekends

C. during school time       D. during summer vacation

3. Riesa makes money by_______.

A. cleaning up other people’s yard               B. drawing pictures for others

C. writing articles for different magazines        D. knitting dog sweaters.

4.According to the passage, which of the following is NOT true?

A. The writer thinks kids from 10-13 years of age can make money too.

B. Kids can learn how to use their time wisely by making money.

C. Kids don’t need to get along with others when making money.

D. Kids can learn skills if they try to make money on their own.

高一英语阅读理解简单题查看答案及解析

I have lived in Keelung for over twenty years. Before 20, I had not traveled abroad. The _____ places I had visited were scenic spots in my hometown. I was always told to come back home right away after school. My two schools were very _____; it took less than fifteen minutes to arrive at the schools from home.

_____ I was a junior-high-school student, after a final exam, a few classmates _____ me to visit Taipei. Needless to say, I was full of _____ and asked Mother for _____ to join this hike. But to my _____, my mother refused my request because she was worried about my _____. In spite of(尽管) the fact, I tried to ____ her, telling her about our destinations and my classmates’ _____ experiences of visiting Taipei, but she just said, “Unless parents _____ you, you can’t go.” I did my best to _____ her but it was all in vain. I faced a dilemma. On the one hand, I knew that Mother’s firm disagreement was because my brother was injured in an accident when he was traveling. To be a considerate son, should I _____ my desire? On the other hand, I didn’t want to _____ a valuable opportunity to grow up and to be _____. Filled with sadness and anger, I _____ a cold war with Mother. I neither talked with her nor did I go out of my room. Two days later, my mother not only _____ my classmates about the visit but also called their parents to _____ safety problem. Through a number of phone calls, finally she agreed. Before I left, _____, she once again talked about her concern. I listened carefully and patiently and gave her a thankful embrace because I knew that was the way my mother’s _____ went.

1.A. richest B. farthest C. best D. largest

2.A. steep B. near C. dangerous D. boring

3.A. Though B. After C. Since D. When

4.A. invited B. promised C. forced D. attracted

5.A. energy B. hope C. excitement D. surprise

6.A. help B. advice C. money D. permission

7.A. puzzle B. hesitation C. regret D. disappointment

8.A. study B. health C. safety D. age

9.A. convince B. trust C. overcome D. control

10.A. necessary B. enough C. steady D. creative

11.A. accompany B. reject C. participate D. declare

12.A. remove B. encourage C. persuade D. inspire

13.A. give away B. give off C. give out D. give up

14.A. miss B. avoid C. ignore D. abolish

15.A. independent B. smart C. separate D. sensitive

16.A. started B. gathered C. picked D. ended

17.A. motivated B. reminded C. informed D. consulted

18.A. discuss B. study C. research D. require

19.A. otherwise B. therefore C. however D. thus

20.A. fear B. love C. expectation D. appreciation

高一英语完形填空困难题查看答案及解析

In some parts of the United States, farming is easy. But farming has always been difficult in the northeastern corner of the country, which is called New England.

New England has many trees and thin, rocky soil. Anyone who has wanted to start a new farm there has had to work very hard. The first job has been cutting down the trees. The new job has been digging out the roots of the trees. Then the farmer has had the difficult job of removing stones from his land. This work of removing stones never really ends, because every winter more stones appear. They come up through the thin soil from the rocks below. Farmers have to keep removing stones from the fields. Even today, farms which have been worked on for two hundred years still keep producing more stones. That is why stone walls are used instead of fences (篱笆) in New England fields. The stone walls are not high and a man can easily climb over them. However, they keep the farmer’s cows from joining those of his neighbor’s.

1.Where is New England?

A. In England.    B. In North America.

C. In South America.  D. In Australia.

2.Why do stones keep appearing?

A. Because the farmers keep digging them out.

B. Because there are rocks below the soil and the soil is too thin.

C. Because there are no trees at all.

D. Because the wind keeps blowing.

3. Why do the farmers build stone walls instead of fences?

A. Because the stone walls are not high and a person can easily climb over them.

B. Because the stone walls can stop the cows from joining their neighbor’s.

C. Because there are too many stones.

D. Both A and B.

4.Which of the following is NOT true?

A. There are almost no trees in New England.

B. Farming is difficult in New England.

C. It’s difficult for farmers to remove stones from the fields.

D. The stone walls in New England are not high.

高一英语阅读理解中等难度题查看答案及解析

In some parts of the United States, farming is easy. But farming has always been difficult in the northeastern corner of the country, which is called New England.

New England has many trees and thin, rocky soil. Anyone who has wanted to start a new farm there has had to work very hard. The first job has been cutting down trees. The next job has been digging stumps (树桩) of the trees out of the soil. Then the farmer has had the difficult job of removing stones from his land.

The work of removing stones never really ends, because every winter more stones appear. They come up through the thin soil from the rocks below. Farmers have to keep removing stones from the fields. Even today, farms which have been worked on for 200 years keep producing more stones.

That is why stone walls are used instead of fences around New England fields. The stone walls are not high: A man can easily climb over them. But they keep the farmer’s cows from joining his neighbour’s cows.

1.New England is an area ______.

A.  in the northeastern part of Britain

B.  which has been newly discovered by the Englishmen

C.  which lies between Australia and New Zealand

D.  which lies in the northeastern part of the USA

2.According to the passage, farming is difficult in New England because ______.

A. the winter is very long there        B. the farms are very old

C. the soil is rocky and thin           D. there are not enough machines for farming

3.From this passage, we know the removing of stones ______.

A.  must be done again and again

B.  is usually done during the winter

C.  is an interesting job children enjoy doing

D.  was more difficult before machines were used

4.In New England, stone walls are used to ______.

A.  keep dangerous beasts out

B.  keep the farmer’s cows from wandering away

C.  protect the farmers fields from thieves

D.  provide comfortable living conditions for the farmer’s family

高一英语阅读理解中等难度题查看答案及解析

Dogs are a very popular pet in the United States. Most dogs just live with their families, but some dogs have very special jobs to do.

A very special group of dogs are known as “Therapy (治疗) Dogs”. These dogs are family pets with special training. The training allows them to go into public buildings and comfort people in need. The dogs are trained to be calm and quiet. Loud noises and unfamiliar places don’t frighten them. Therapy dogs can improve people’s health as well. Studies show that when people spend time with animals, their blood pressure goes down. They are calmer, and their mood improves.

Some therapy dogs work in schools and libraries. In one town in California, therapy dogs have become children’s reading friends. The dogs belong to a therapy dog group. Eight of these special dogs have been trained to be listening friends for young readers. The library is trying to encourage kids to enjoy reading. The children are invited to meet at the library. They are paired up with a therapy dog and can read to it.

The dogs make a great audience. They don’t judge a child who cannot read well; they just listen quietly. The children can read at their own speed and they find it less nervous than reading in front of their class. The children look forward to reading to the dogs, and the dogs love the attention. The library and the teachers are very happy with the program.

1.Which of the following about therapy dogs is TRUE according to the text?

A.They love to be comforted by people. B.They are trained to frighten strangers.

C.They are quiet and make little noise. D.Their mood improves when they help people.

2.We know that the library mentioned in the text ________.

A.wants to help kids to enjoy reading B.invites kids to meet outdoors

C.trains eight dogs to help kids D.divides kids into groups

3.The dogs in the library can make a great audience because they ________.

A.love spending time with children B.don’t comment on children’s reading

C.don’t mind whether children are reading D.understand children’s feelings

4.Which of the following is the best title for the text?

A.Dogs are popular among American families B.Dogs help children become better readers

C.Dogs work in libraries in California D.Dogs are children’s best friends

高一英语阅读理解中等难度题查看答案及解析