From space,the earth looks blue. This is about seventy-one percent of its surface is covered by water. A. why B. how C. because D. whether 题目和参考答案——青夏教育精英家教网—

题目内容

32. (2013 •安徽) From space,the earth looks blue. This is about seventy-one percent of its surface is covered by water.

A. why B. how

C. because D. whether

32. C

32. C解析:考查名词性从句。句意:从太空上看，地球看起来是蓝色的。这是因为它表面大约71 %都被水覆盖着。

because引导表语从句，表示原因，符合句意。why意为“为什么”，所接句子表示结果；how表示方式;whether意为“是否”。

练习册系列答案

相关题目

12. Nobody in the class but John and I that our Chinese teacher will go abroad.

A. knew B. know

C. knows D. had known

11. While reading,an idea struck me books are the greatest invention of human beings.

A. what B. which

C. whose D. that

18. What do we know about the speaker's parents?

A. They let the speaker do whatever he likes.

B. They care for the speaker too much.

C. They are impatient with the speaker.

19. What were the speaker's parents doing when he came home last Friday?

A. They were cooking.

B. They were chatting.

C. They were listening to music.

20. Why did the speaker look tired after school last Friday?

A. He couldn’t relax himself.

B. He was bored with his school life.

C. His parents didn't understand him.

27. (2013 •福建) The famous musician,as well as his students, to perform at the opening cere- mony of the 2012 Taipei Flower Expo.

A. were invited B. was invited

C. have been invited D. has been invited

Poverty,disease and conflict have historically threatened food security. Now,rising food prices and issues like climate change add to these threats.

A new study warns of future losses in world food production because of crop damage from changes in the weather. William Cline wrote the study from the Centre for Global Development in Washington. He says countries closest to the equator will be hardest hit. For example,he predicts that if nothing is done,global warming could cut India5 s food production by up to forty percent by the year 2080. Africa and Latin America could lose twenty percent or more.

Governments concerned about global warming and dependence on oil are investing in biofuels from com and other plants. But Lester Brown at the Earth Policy Institute in Washington says demand for fuel crops is pushing up food prices. He says the worlds eight hundred sixty million automobile owners are now in direct competition with the two billion poorest people.

This comes as grain supplies are at their lowest level in years. Experts see a number of reasons. These include no enough investment in agricultural technology,a loss of farmland to development,droughts and floods made worse by climate change and growing competition for water.

Population growth also means a greater demand on food supplies. The United Nations predicts a population of more than eight billion by the year 2030.

56. Now are becoming threats to food security.

A. poverty and disease

B. disease and conflict

C. conflict and climate change

D. climate change and rising food prices

57. will suffer from the changes in the weather most.

A. Countries closest to the equator

B. Africa

C. Latin America

D. Asian countries

58. The passage is developed by .

A. comparing B. contrast

C. analysing D. definition

59. According to Lester Brown, is also a threat to food security.

A. global warming

B. the competition between the automobile owners and the two billion poorest people

C. demand for fuel crops

D. not enough investment in agricultural technology

60. Which of the following doesn’t belong to the reasons why grain supplies are at the lowest level?

A. Farmland is for other use.

B. Not enough investment.

C. Enough water is becoming hard to get.

D. The need of grain is becoming greater.

2. This is what I want . You must finish it by this time tomorrow.

A. to do B. doing

C. you to do D. you do

(2014 •海口高一检测) You’re standing with your classmates. Everyone is talking—except you. Perhaps you’re afraid they will laugh at what you say. Or maybe you just aren’t brave enough to speak.

I've been there,and so have many other people all over the world. Shyness is like a snake that crawls (爬) into our mouths and stops us speaking. But we shouldn’t let it stay there.

I am 29 years old. Even today,that snake still sometimes visits me. But when I was in high school,I was so shy that I wouldn't talk to anyone except my parents and best friends. If a stranger asked me the way to a local shop,it was as if Yd forgotten how to talk.

One summer,I got a job in a restaurant and that helped a lot. It meant I had to talk to customers. I had to tell them how much their meal cost. I had to ask them if they wanted to drink Coke or Sprite. I had to tell the people in the kitchen if someone wanted pickle (泡菜 ) on his sandwich.

This job taught me how to speak with people.

You may not be old enough to find a part-time job. But you can look for other chances to speak with people. You can offer to help an old woman carry her heavy bag. Or you can go to get a newspaper for your family.

If you do these things for a while,the “ shyness ” snake will soon begin to leave you alone. It’ll look for another mouth to crawl into.

46. The example in the first paragraph is used to.

A. show that everyone has the right to speak in class

B. tell readers that it is not right to laugh at others

C. introduce the fact that many people have a shyness problem

D. argue that it is alright to keep silent in public

47. The underlined sentence in the second paragraph probably means “ ”.

A. he's been in many situations that make other people feel shy

B. he is confident that he can find a way to get over shyness

C. he is sad because he knows he will always be shy

D. like many other people,he once was troubled by shyness

48. The author's duties in the restaurant included

A. cooking the meals for customers

B. taking the customers’ orders

C. discussing the menu with the manager

D. helping people in the kitchen

49. Who was the article written for?

A. Shy teenagers.

B. College students.

C. People who work at a restaurant.

D. People who need a part-time job.

50. What would be the best title of the passage?

A. I Am Shy

B. How to Overcome Shyness

C. What Is Shyness

D. Everybody Is Shy

Marie was a single mother of two children in the county of Missouri. She worked full-time during the day and sold handmade leather gifts on weekends. She 16 devoted much spare time in her and her neighbouring community charities to 17 others.

Then one day Marie received some 18 news from her doctor. She had cancer,and it was 19 rapidly. Her life was so hard that she could not 20 to put a cent in the medical treatments she would need. She decided to let her 21 alone and put her future to God.

But soon,Marie learned a fact： 22 she was not financially wealthy,she already had the most valuable 23 in the world. Many people she had 24 in caring ways offered help and money to Marie. Hundreds in her community and 25 areas teamed up to help her and her family. She did not 26 the disease. However,she lived long enough to feel the 27 of those she had cheerfully served. She died calmly as she knew a couple had 28 to take care of her children.

The spirits of love and gratitude (感激，谢意) increase rapidly when they are 29 among people. Happiness is the 30 of sharing love and gratitude. Giving 31 was a belief that Marie carried out all her life,and her spirit of giving still 32 after she died in those who knew and loved her.

All her life,Marie had shown the truth of this simple 33 ： happiness will not come from worldly possessions or wealth. 34 ， it is an attitude that comes from appreciating what we already have. We can find the happiness we 35 all the time if we first share it with others. Then—and only then—we will have the most val-uable possessions on earth：love,happiness,and increasing gratitude.

16. A. even B. still C. also D. already

17. A. greeting B. teaching

C. challenging D. helping

18. A. encouraging B. shocking

C. amazing D. attracting

19. A. disappearing B. spreading

C. decreasing D. producing

20. A. afford B. dare C. decide D. offer

21. A. children B. career

C. disease D. charity

22. A. because B. before

C. if D. although

23. A. possessions B. knowledge

C. gifts D. information

24. A. met B. remembered

C. visited D. moved

25. A. foreign B. faraway

C. surrounding D. rural

26. A. survive B. cure

C. develop D. understand

27. A. respect B. love

C. sympathy D. support

28. A. hoped B. planned

C. expected D. promised

29. A. shared B. noticed

C. mentioned D. received

30. A. fact B. result

C. relationship D. effort

31. A. properly B. willingly

C. completely D. unselfishly

32. A. changed B. rose

C. lived D. happened

33. A. principle B. message

C. lesson D. experience

34. A. Meanwhile B. Instead

C. Therefore D. Nevertheless

35. A. seek B. lack C. waste D. choose

试题分类