Scientists who study insects are troubled now...

Scientists who study insects are troubled now. All across the United States, bees are leaving their hives and never returning. According to the beekeepers across the country, 25 to 40 percent of the bees in the United States have left their hives since last fall. So far, no one can explain why.

Bees play an important role in the production of about one third of the food we eat. A large number of plants not only need people’s care but also need bees that spread pollen from flower to flower. Without this process, a plant can’t produce seeds or fruits.

Now, a group of scientists and beekeepers are trying to find out what has happened. By examining bees’ behavior and health, they hope to find out what has caused the bees’ disappearance and to prevent bees from disappearing in the future.

Some people think the disappearance may be caused by disease. According to Dewey Caron, a researcher at the University of Delaware, the bees have signs of troubled immune systems (免疫系统) inside their bodies. But why would troubled immune systems cause bees to leave their hives? After all, when people are sick, they want to stay at home. Caron guesses that sick bees may have difficulty figuring out where their homes are.

“Another cause may be some chemicals that farmers use to kill unwanted insects on crops.” says Jerry Hayes, who works at the Florida Department of Agriculture.

1.The underlined part “this process” refers to ________.

A.people’s care

B.bees’ leaving their hives

C.bees’ spreading pollen from flower to flower

D.beekeepers’ raising bees

2.It can be inferred from the passage that ________.

A.the use of some chemicals is the cause of the bees disappearance

B.sick bees are not able to find where their hives are

C.it’s not known yet why a lot of bees are leaving their hives and never returning

D.there will be no bees in America in the near future

3.What would be the best title for the passage?

A.Bees,Humans’ Friends

B.Scientists Are Interested in Bees

C.Why Are Bees Leaving?

D.How Do Bees Send out Information?

4.The passage is most probably taken from ________.

A.science news

B.a public advertisement

C.a book on advanced technology

D.a business report

高一英语阅读理解中等难度题查看答案及解析

We’ve learned bees can understand zero and do basic math. Now a new study shows their tiny insect brains may be able to connect symbols to numbers.

Adrian Dyer, a professor in the RMIT University, said the research showed brains far smaller than humans’ could know numbers. “Humans learn numbers as children, but being able to recognize what numbers really represent needs a certain level of cognitive (认知的) ability,” Dyer says, “Studies have shown primates (灵长类动物) and birds have this ability, but this is the first time we’ve seen this in insects.”

It’s important for humans to do the research. There are 86 billion neurons (神经元) in humans’ brains. Bees only have less than a million. If bees have the ability to learn something difficult to understand like human-made symbolic language, this will open up exciting new paths for future communication between humans and animals.

Studies have shown that a number of animals have been able to learn symbols of numbers, including parrots and monkeys. Monkeys were taught Arabic numbers and could order them correctly. An African grey parrot called Alex was able to learn numbers and could do simple calculation.

Understanding how tiny brains of bees manage information opens paths to technology, which is good for the future design of computing (计算) systems.

1.What does Adrian Dyer say about the research?

A.The finding of the research is first seen in insects.

B.Humans’ brains are the biggest on the earth.

C.Birds can be as clever as primates.

D.Bees are cleverer than birds.

2.What do we know about the research?

A.Humans may find a new path to communicate with animals.

B.Bees have more neurons than monkeys.

C.Insects have the ability to communicate with humans.

D.Bees can solve basic math problems.

3.Who is Alex according to the text?

A.A child. B.A monkey.

C.An expert. D.A parrot.

4.What’s the main idea of the text?

A.Bees can communicate with other animals.

B.Bees can attach symbols to numbers.

C.Some animals can do math problems.

D.Bees can make communication with humans.

高一英语阅读理解困难题查看答案及解析

Many a professor _____ looking forward to visiting Germany now．Many scientists _____ studied animals and plants in the last two years.

A．is; have           B．is; has            C．are; have          D．is; are

高一英语单项填空中等难度题查看答案及解析

Many people who were once _______ now get better jobs after further education.

A. out of trouble                 B. out of work           C. in ruins          D. in need

高一英语单项填空中等难度题查看答案及解析

We all often deal with people who complain about the failures and troubles of their daily lives. Life seems to be full of problems for them. 1.. If there were no problems in your job, then your employer would hire a much less capable (能干的) person than you to do the things that don’t need much thought. In the business world, those who are able to solve difficult problems are the ones who are the most valuable to the employer.

2.. The runner who trains for the mile run in the Olympics by running downhill will have no chance of winning the medal at all. The runner who trains by running uphill is far more likely to develop the speed and endurance（耐力）needed to win the medal.

Boxer Gene Tunney broke both hands in the ring. 3.. But at that time his manager felt that he could never again punch（重击）hard enough to be the heavyweight champion. Instead, Tunney determined to become a scientific boxer and win the title as a boxer. 4.. As a puncher, he would not have had a chance against Jack Dempsey, who was considered by many to be the hardest hitter in heavyweight history. Tunney would never have been a champion, if he had not had the problem of his broken hands.

5., you should smile and say, “Here’s my chance to win.”

A.Every time you are feeling down

B.It turned out to be the best thing to him

C.The next time you meet with a difficult climb

D.I would like to think such a life nothing unusual

E.He was lucky to be trained by an experienced coach

F.He proved to be one of the best boxers who had ever fought

G.Many times the problems we face force us to grow and become abler

高一英语七选五中等难度题查看答案及解析

Scientists today are making greater effort to study ocean currents (洋流) . Most do it using satellites and other high-tech equipment. However, ocean expert Curtis Ebbesmeyer does it in a special way -- by studying movements of random floating garbage. A scientist with many years’ experience, he started this type of research in the early 1990s when he heard about hundreds of athletic shoes washing up on the shores of the northwest coast of the United States. There were so many shoes that people were setting up swap meets to try and match left and right shoes to sell or wear.

Ebbesmeyer found out in his researches that the shoes — about 60,000 in total — fell into the ocean in a shipping accident. He phoned the shoe company and asked if they wanted the shoes back. As expected, the company told him that they didn't. Ebbesmeyer realized this could be a great experiment. If he learned when and where the shoes went into the water and tracked where they landed, he could learn a lot about the patterns of ocean currents.

The Pacific Northwest is one of the world's best areas for beachcombing(海滩搜寻) because winds and currents join here, and as a result, there is a group of serious beachcombers in the area. Ebbesmeyer got to know a lot of them and asked for their help in collecting information about where the shoes landed. In a year he collected reliable information on 1, 600 shoes. With this data, he and a colleague were able to test and improve a computer program designed to model ocean currents, and publish the findings of their study.

As the result of his work, Ebbesmeyer has become known as the scientist to call with questions about any unusual objects found floating in the ocean. He has even started an association of beachcombers and ocean experts, with 500 subscribers from West Africa to New Zealand. They have recorded all lost objects ranging from potatoes to golf gloves.

1.Ebbesmeyer phoned the shoe company to find out _____________.

A. what caused the shipping accident

B. when and where the shoes went missing

C. whether it was all right to use their shoes

D. how much they lost in the shipping accident

2.How did Ebbesmeyer prove his assumption?

A. By collecting information from beachcombers.

B. By studying the shoes found by beachcomber.

C. By searching the web for ocean currents models.

D. By researching ocean currents data in the library.

3.Ebbesmeyer is most famous for ___________________.

A. traveling widely the coastal cities of the world

B. making records for any lost objects on the sea

C. running a global currents research association

D. phoning about any doubtful objects on the sea

4.What is the purpose of the author in writing this passage?

A. To call people's attention to ocean pollution.

B. To warn people of shipping safety in the ocean.

C. To explain a unique way of studying ocean currents.

D. To give tips on how to search for lost objects on the beach.

高一英语阅读理解中等难度题查看答案及解析

Scientists are studying different foods, and they will see which foods protect us from cancer(癌症), and which cause it. It is known that a healthy diet(饮食) will help keep a healthy body weight, which can also decrease the risk(风险) of many types of cancer.

Fruit and vegetables

Fruit and vegetables are an important part of a healthy diet. They can decrease the risk of some cancer types like mouth and throat cancer. They are a good source of many important nutrients such as vitamin A, vitamin C, vitamin E, and are an excellent source of fiber.

Our advice

Try to get plenty of fruit and vegetables in your diet. Eating fruit and vegetables with a variety of colors will help you get many kinds of vitamins and minerals, as the chemicals that give these foods their colors are good for you.

Meat

Eating lots of red and processed meat can increase(增加) your risk of stomach cancer. Red meat includes all fresh and frozen beef, pork and lamb. Processed meat includes ham, bacon and sausage. White meat, such as chicken, is unlikely to increase your risk of cancer.

Our advice

Eat smaller and fewer parts of red and processed meat. Try using beans or peas instead of meat in your diet. When you cook meat, use low-temperature methods.

Fat

Fat is a necessary part of our diet but high-fat diet can increase our risk of cancer, heart disease and other diseases. Meat is higher in saturated fat(饱和脂肪) and eating too much saturated fat may increase your risk of breast cancer.

Our advice

Try not to eat too much fatty foods. In particular, try to cut down on saturated fat contained in fatty meat, biscuits, and butter. Try to avoid frying foods in lots of oil.

1.According to the passage, fruit and vegetables ___________.

A. are an excellent source of fiber

B. will help you get all kinds of vitamins and minerals

C. are an only necessary part of a healthy diet

D. can increase the risk of some cancer types like mouth and throat cancer

2.What can we know about meat from the passage?

A. Eating processed meat is better than eating beans.

B. Processed meat is a part of a healthy diet.

C. Meat should be cooked at a high temperature.

D. Eating chicken is better than eating sausage.

3.What can be inferred from the last two paragraphs?

A. Saturated fat leads to breast cancer.

B. Foods with fat will cause heart disease.

C. A healthy diet should contain fat.

D. Butter belongs to low-fat foods.

高一英语阅读理解简单题查看答案及解析

Can you imagine a world without music? Studies show that public schools across the country are cutting back on music classes to save money. Even worse, some schools have never had music classes to begin with. But without them, students’ academic (学术的) growth and spiritual health could suffer. In fact, music classes are necessary for all students in schools.

Recent studies Brown University have shown that students who received music education classes were better in math and reading skills than those without music classes. Another study by The College Board found that students taking music and art classes got higher points. Students’ academic success seems to depend on their taking part in music education..

Music programs in public schools also help to add to a student’s sense of pride and self-confidence. Teens today have too many learning tasks. Besides, they have family problems, self-confidence problems, relations hip troubles, and choices about smoke and alcohol (酒精). All of these can stop academic success, but music education can help. A study by The Texas Commission on Drug and Alcohol Abuse found that students who took part in school music programs were less likely to turn to smoke. Music programs encourage students to work together to produce an excellent performance.

Music crosses language, class and culture. Music allows students from different countries to connect. For example, at a school talent show, a new Japanese student played a piano duet (二重奏) with an American classmate. Two students from different cultures worked as a team with self-confidence and common purpose through music.

The gift of music is priceless. We need to be sure to have necessary music classes for all students. The world is losing its music, and putting music into schools is the first step to get it back.

1.The two studies seem to show that ________.

A.students with great success attend music lessons

B.music classes play an important role in students’ growth

C.not all students could have music classes at school

D.students who have music classes do better in all subjects

2.The example in Paragraph 4 mainly suggests that ________.

A.music makes cross-cultural communication possible

B.different cultures have different styles of music

C.Japan has a good relationship with America

D.Japanese and American students are good at playing the piano

3.What can we learn about education with music classes?

A.It allows schools to make more money.

B.It can cause a lot of academic problems.

C.It will affect the world cultural communication greatly.

D.It does good to students’ academic success and spiritual health.

4.What is the best title for the text?

A.The Importance of Music Classes in School

B.Music—A Bridge to Understanding

C.Studies on Music Education

D.How to Get Music Back

高一英语阅读理解中等难度题查看答案及解析

Here are six steps to better studying.

Pay attention in class

Do you have trouble paying attention in class? Are you sitting next to a loud person? Tell your teacher or parents about any problem that is preventing you from paying attention.

Take good notes

Write down facts that your teacher mentions or writes on the board. Try to use good handwriting so you can read your notes later. It’s a good idea to keep your notes organized by subject.

Plan ahead for tests and projects

Waiting until Thursday night to study for Friday’s test will make it hard to do your best. One of the best ways to make sure that doesn’t happen is to plan ahead. Write down your test dates. You can then plan how much to do after school each day, and how much time to spend on each topic.

Break it up

Ask for help

You can’t study effectively if you don’t understand the material. Be sure to ask your teacher for help. If you’re at home when the confusion occurs, your morn or dad might be able to help.

Sleep tight

So the test is tomorrow and you’ve followed your study plan—but suddenly you can’t remember anything! Don’t panic. Your brain needs time to digest all the information you’ve given it. Try to get a good night’s sleep and you’ll be surprised by what comes back to you in the morning.

1.We know from the passage that a loud person is________.

A．a student who always answers questions loudly in class

B．someone who likes to talk with others in a loud voice

C．a student who likes speaking with others in class

D．a person who makes a lot of noise in public places

2.According to the author, which of the following is an effective studying method?

A．Don’t try to review everything you have learned in one go.

B．Try to review what you’ve learned in one go.

C．To read all your notes the night before the test.

D．Try to remember everything on the first try.

3.If you don’t understand what you have learnt, you can________.

A．read your notes over and over again

B．turn to people around you for help

C．put aside the material for later review

D．ask your teacher to explain it the next day

4.By saying “Sleep tight”, what does the author mean?

A．Sleep again after waking up.               B．Sleep holding your breath deep.

C．Get a good night’s sleep.                 D．Go to sleep early every night.

高一英语阅读理解中等难度题查看答案及解析

Scientists are aksing: What is the best way to fight climate change? A new study says: Plant many trees; one trillion trees, maybe more. Swiss scientists say there is enough room for that many trees. In their report in the journal Science, they say there is enough space on the earth, which could cover nine million square kilometers, an area the size of the United States.

Trees take carbon dioxide（二氧化碳）out of the air, and in return, put oxygen back into the air. The study estimated that over a long period of time, the trees could take in almost 750 billion tons of carbon dioxide from the atmosphere. That is about as much carbon as humans have put into the atmosphere in the past 25 years. What is so bad about carbon dioxide? The gas traps heat, causing temperatures to rise.

Much of the gain from planting trees will come quickly because trees remove more carbon from the air when they are younger, the researchers said. The place that has the best possibility for removing the most carbon is the tropics—the area close to the equator. This method would also have the lowest cost, says the study co-author Thomas Crowther, a climate change ecologist at the Swiss Federal Institute of Technology in Zurich. This is by far, the cheapest and the most effective climate change solution, he said. The six nations with the most room for new trees are Russia, the United States, Canada, Australia, Brazil and China.

Before his study, Crowther thought that there were other more effective ways to fight climate change besides cutting emissions（排放）. For example, people could change their diets by no longer eating meat. But, he said, tree planting is far more effective because trees remove so much carbon dioxide from the air.

1.The second paragraph mainly tells us _____.

A.how people plant more trees

B.why people should plant more trees

C.when people should plant more trees

D.where people should plant more trees

2.Which of the following statements is TRUE according to the passage?

A.Trees can’t remove the carbon in the tropics.

B.Trees are less helpful when they are younger.

C.There is enough space to plant one trillion or more trees on the earth.

D.People can only plant trees in Russia, the United States, Canada, Australia, Brazil and China.

3.What’s the best title of the passage?

A.More trees help fight climate change.

B.Carbon dioxide causes temperatures to rise.

C.Not eating meat is the best way to fight climate change.

D.Cutting emissions is the most effective way to fight climate change.

高一英语阅读理解中等难度题查看答案及解析