游客
题文

D
Can trees talk? Yes --- but not in words. Scientists have reason to believe that trees do communicate with each other. Not long ago, researchers learned some surprising things. First a willow tree  (柳树) attacked in the woods by caterpillars (毛毛虫) changed the chemistry of its leaves and made them tasteless so that the caterpillars got tired of the leaves and stopped eating them. The even more astonishing, the tree sent out a special vapor--- a signal causing its neighbors to change the chemistry of their own leaves and make themselves taste also terrible.
Communication, of course, doesn’t need to be always in words. We can talk to each other by smiling, raising our shoulders and moving our hands. We know that birds and animals use a whole vocabulary of songs, sounds and movements. Bees dance their signals, flying in certain patterns that tell other bees where to find nectar (花蜜) for honey. So shy shouldn’t trees have ways of sending messages?
71.When attacked, a willow tree will protect itself by _______.
A. changing its leaves’ chemistry         B. changing its leaves’ color
C. talking to caterpillars                      D. sending a special vapor
72. From the passage we know that caterpillars _______.
A. like willow trees                            B. enjoy eating fallen leaves
C. feed on willow tree leaves     D. could communicate with willow trees
73.Caterpillars will stop eating willow tree leaves which _______
A . have a chemical change and become tasteless   B. have a pleasant taste
C. are being attacked                                      D. are communicating
74.According to the passage, how do willow trees communicate with each other?
A. They talk in words.                               B. They send a special vapor.
C. They wave their leaves.                          D. They make special sounds.
75.According to the passage, bees communicate with each other by _______.
A. talking                     B. making unusual sounds
C. singing                     D. flying in certain patterns

科目 英语   题型 阅读理解   难度 容易
登录免费查看答案和解析
相关试题

After giving a talk at a high school, I was asked to pay a visit to a special student. An illness had kept the boy home, but he had expressed an interest in meeting me. I was told it would mean a great deal to him, so I agreed.
During the nine-mile drive to his home, I found out something about Matthew. He had muscular dystrophy (肌肉萎缩症). When he was born, the doctor told his parents that he would not live to five, and then they were told he would not make it to ten. Now he was thirteen. He wanted to meet me because I was a gold-medal power lifter, and I knew about overcoming obstacles and going for my dreams.
I spent over an hour talking to Matthew. Never once did he complain or ask, “Why me?” He spoke about winning and succeeding and going for his dreams. Obviously, he knew what he was talking about. He didn’t mention that his classmates had made fun of him because he was different. He just talked about his hopes for the future, and how one day he wanted to lift weights with me. When we had finished talking, I went to my briefcase and pulled out the first gold medal I had won and put it around his neck. I told him he was more of a winner and knew more about success and overcoming obstacles than I ever would. He looked at it for a moment, then took it off and handed it back to me. He said, “You are a champion. You earned that medal. Someday when I get to the Olympics and win my own medal, I will show it to you.”
Last summer I received a letter from Matthew’s parents telling me that Matthew had passed away. They wanted me to have a letter he had written to me a few days before:
Dear Dick,
My mum said I should send you a thank-you letter for the picture you sent me. I also want to let you know that the doctors tell me that I don’t have long to live any more, but I still smile as much as I can.
I told you someday that I would go to the Olympics and win a gold medal, but I know now I will never get to do that. However, I know I’m a champion, and God knows that too. When I get to Heaven, God will give me my medal and when you get there, I will show it to you. Thank you for loving me.
Your friend,
Matthew
The boy looked forward to meeting the author because _________.

A.he was also good at weight lifting
B.he wanted to get to the Olympics and win a medal
C.he was one of the author’s fans
D.he admired the author very much

The underlined sentence in the third paragraph probably means that _______.

A.the boy never complained about how unlucky he was to have this disease
B.the boy never complained about not being able to go to school
C.the boy never complained why the author had never come to see him before
D.the boy never complained about not getting a medal

From the passage we learn that _________.

A.Matthew was an athlete
B.Matthew was an optimistic and determined boy
C.The author used to have the same disease as Matthew had
D.Matthew became a champion before he died

Matthew didn’t accept the author’s medal because _________.

A.he thought it was too expensive
B.he was sure that he could win one in the future
C.he thought it was of no use to him as he would die soon
D.he would not be pitied by others

What would be the best title for this passage?

A.A sick boy. B.A special friend.
C.A real champion. D.A famous athlete.

The concept of health holds different meanings for different people and groups. These meanings have also changed over time. This change is no more evident than in Western society today, when notions of health and health promotion are being challenged and expanded in new ways.
For much of recent Western history, health has been viewed in the physical sense only. That is, good health has been connected to the smooth mechanical operation of the body, while ill health has been attributed to a breakdown in this machine. Health in this sense has been defined as the absence of disease or illness and is seen in medical terms.
In the late 1940s the World Health Organization challenged this physically and medically oriented (导向的) view of health. They stated that health is a complete state of physical, mental and social well-being and is not merely the absence of disease (WHO, 1946). Health and the person were seen more holistically (mind / body / spirit) and not just in physical terms.
The 1970s was a time of focusing on the prevention of disease and illness by emphasizing the importance of the lifestyle and behaviour of the individual. Specific behaviours which were seen to increase risk of disease, such as smoking, lack of fitness and unhealthy eating habits, were targeted. Creating health meant providing not only medical health care, but also health promotion programs and policies which would help people maintain healthy behaviours and lifestyles. While this individualistic healthy lifestyle approach to health worked for some (the wealthy members of society), it was of little benefit to people experiencing poverty, unemployment, underemployment or who had little control over the conditions of their daily life.
During the 1980s and 1990s there has been a growing swing away from seeing lifestyle risks as the root cause of poor health. While lifestyle factors still remain important, health is being viewed also in terms of the social, economic and environmental contexts in which people live. This broad approach to health is called the socio-ecological view of health.
At the Ottawa Conference in 1986, a charter was developed which outlined new directions for health promotion based on the socio-ecological view of health. This charter, known as the Ottawa Charter for Health Promotion, remains as the backbone of health action today. In exploring the scope of health promotion it states that:
Good health is a major resource for social, economic and personal development and an important dimension (尺度) of the quality of life. Political, economic, social, cultural, environmental, behavioural and biological factors can all favour health or be harmful to it. (WHO, 1986)
From the passage, we can infer that _________.

A.good health means not having any illness
B.health has different meanings for different people in different periods
C.health has always been viewed in terms of the social, economic and environmental contexts in which people live
D.health has always been considered a major resource for social, economic and personal development and an important dimension of quality of life

In the late 1940s, if you ___________, that meant you were healthy.

A.were strong enough
B.were strong, optimistic and happy
C.had enough money
D.had a good lifestyle

of society benefited most from the healthy lifestyle approach to health.

A.Rich people B.Poor people
C.Old people D.Young people

The socio-ecological view of health includes the following broad areas EXCEPT ________.

A.the social contexts
B.the environmental contexts
C.the economic contexts
D.the area of personal development

This passage mainly tells us that .

A.wealth is health
B.health means different things in different periods
C.it’s getting harder to be healthy
D.people should change their understanding of health over time

We have all experienced days when everything goes wrong. A day may begin well enough, but suddenly everything seems to get out of control. Sometimes a single unimportant event may cause a number of things to happen. Let us suppose that you are preparing a meal and keeping an eye on the baby at the same time. The telephone rings and this causes your troubles to begin. While you are on the phone, the baby pulls the tablecloth off the table, destroying your half-prepared meal. You hang up hurriedly and attend to your baby. Meanwhile, the meal gets burnt. As if this is not enough to bring you to tears, your husband arrives home, unexpectedly bringing three guests to dinner.
Things can also go wrong on the road. During rush hour one evening two cars collided and the drivers began to argue. The woman driver behind the two cars happened to be a learner. She got into a panic and stopped her car. This forced the driver following her to stop suddenly. This driver’s wife was sitting beside him holding a large cake, and as she was thrown forward, the cake went right through the window and landed on the road. A truck driver seeing a cake flying through the air slammed on the brakes. The truck was carrying empty beer bottles and hundreds of them slid off the back of the truck onto the road, causing a terrible traffic jam. It took the police an hour to get the traffic on the move again. In the meantime, the truck driver had to sweep up hundreds of broken bottles. Only two dogs were enjoying themselves, for they were happily having what was left of the cake.
If you want to answer the phone without any trouble, you’d better ___________ .

A.pull out the telephone line when you are with your baby
B.put your baby on the bed and keep an eye on him / her
C.not hurry to answer the phone
D.make sure your baby is not near the table

Who is responsible for the accidents that happened on the road?

A.The two drivers who were arguing.
B.It wasn’t mentioned in the passage.
C.The woman driver.
D.The truck driver.

From this story we learn that ________.

A.there are many road accidents every day
B.the accidents mentioned in the passage are very strange
C.no one knows why this kind of accident happens
D.the accidents mentioned in the passage are very common

The writer’s purpose in writing this passage is to ___________.

A.remind us not to answer the phone when we are busy
B.tell us driving is dangerous every day
C.remind us not to be nervous when we meet an accident
D.remind us not to carry a cake when we are sitting in a car

The main idea of this passage is that ________.

A.troubles always come in groups
B.accidents may happen anywhere at anytime
C.a telephone call may cause great trouble
D.anyone may have trouble on their way home

Some people say that the best way to reduce the size of your waist is to do stomach exercise. Many people believe that when specific muscles are exercised, the fatty tissues (组织) in the immediate area are burned up. The truth is that exercise burns fat from all over the body and not from one specific area. Of course, if you reduce the fat throughout your body, you will certainly see results around your waist too.
Some people believe that you need to exercise twice a week in order to keep a sufficient level of physical fitness. However, studies directed by American scientists show that unexercised muscles lose their strength very quickly. Within 48 to 72 hours, you must use the muscles again to reestablish (重建) the good physical effects. And what does that mean to you? American scientists concluded that while daily exercise is most helpful, exercising every other day or three days a week will keep a sufficient level of physical fitness.
Is it true that you burn more calories running one mile than walking the same distance? The answer is no. The truth is that you use the same amount of energy whether you walk or run the mile, since in both cases you are moving the same weight the same distance. The speed does not matter. Of course, if you run rather than walk for 30 minutes, you will cover more distance, and therefore burn more calories.
If your breathing doesn’t return to normal within 5 minutes after you finish exercising, you have exercised too much. Five minutes or so after exercising, your breathing should be normal, your heart shouldn’t be beating loudly, and you shouldn’t be tired.
If you want to reduce the fat around your waist, you should ____.

A.do stomach exercise B.exercise the waist
C.exercise all the muscles of your body D.run fast for 30 minutes

From the second paragraph, we learn that ____.

A.we only need to exercise twice a week
B.we should exercise three times a week
C.muscles lose their strength after 48 hours
D.we should exercise every other day, or three days a week

It can be inferred from the third paragraph that _________ .

A.you will lose more weight running one hour than walking one hour
B.whether you run one mile or walk the same distance, you use the same amount of energy
C.you will lose more weight running one mile than walking the same distance
D.both A and B

If you have exercised too much, _______.

A.your breathing will take longer than 5 minutes to return to normal after you finish exercising
B.your breathing will return to normal within 5 minutes after finishing exercising
C.your heart will not be beating loudly
D.you will be too tired to move

This passage tells us that _________.

A.it is better to do more running than walking
B.the more exercise you do, the healthier you will be
C.the unexercised muscles must be used again within 48 to 72 hours
D.in order to lose weight, you have to run fast

When a friend is sad about a tragedy(悲剧),it’s hard to know how to comfort(安慰) him/ her. But the worst thing you can do is say nothing. It could mean that you don’t care. You don’t have to say much.. A single supportive phrase doesn’t require absolutely perfect words to break the ice. Here are some conversation starters when life difficult situations have your tongue tied.
1. A friend loses his baby.
Don’t say: “Don’t worry. You’re so young. You’ll have another baby.” Do say: “ I’m so sorry. I can’t begin to imagine what you are going through, but if you want to talk about it, call me anytime.”
2. A guy deserts(抛弃)your friend.
Don’t say: “I never liked that rat bastard (坏蛋) anyway!” ( If the couple winds up reconciling (和解), you could end up losing your friend.) Do say: “Breaking up is always hard to deal with, but I’m here for you, whatever you need.”
3. A friend has a death in the family.
Don’t say: “It’s God’s will.” or “I know exactly how you feel.” Do say: “I’m sorry about your loss. What can I do to help?”
4. A friend loses a job suddenly.
Don’t say: “Work is always boring. Those bosses didn’t suit you!” Do say: “I’m sorry for that, but I know there’s an even better job waiting for you there. Let’s think about possibilities.”
5. Someone’s pet dies.
Don’t say: “Gee! It was only a cat!” or “My roommate doesn’t like her dog and she is getting rid of her dog. Do you want it?” Do say: “I’m sorry, she was such a great cat. How long did you have it?”
Which of the following has the same meaning as the underlined part “have your tongue tied”?

A.make your tongue shut B.tie your tongue in order not to say.
C.have no suitable words to say. D.say what you want freely.

As a whole, what’s the suitable way to comfort your friend troubled with a tragedy?

A.To show your sorrow and offer your help.
B.To try to make the tragedy less serious.
C.To tell your friend not to think about it any more.
D.To do your best to make him/her cheerful again.

Though your friend is deserted, you’d better not say dirty words about her/ his friend because _______________________ .

A.they might get along well again and you might be deserted
B.your friend might not like you to say that against her / his friend
C.it may be a sign that you don’t care for your friend
D.your friend might hate you in the future

Which of the following might be suitable words when your friend’s dog dies?

A.Don’t worry too much. I’ll give you a good one.
B.I’m sorry to hear that. It was such a good dog.
C.I’ m sorry you lost your dog. But it was at its ripe age.
D.You must be sad about it. That’s enough.

Copyright ©2020-2025 优题课 youtike.com 版权所有

粤ICP备20024846号