Have you ever wondered why stems(茎)grow upwards and roots downwards? Why do plants always seem to turn towards the light and climbing plants run up rather than down? The answer is simple: auxin(生长素), a chemical substance that controls growth in plants.

    Auxin gives away its secrets

Auxin is a plant hormone(激素). Darwin was already interested in it in the 19th century. Only in recent years, however, has the hormone started to give away its secrets, thanks to intensive molecular research. Auxin is produced in the young, growing parts of plants and then transported throughout the plant—to a low­lying stem for example. The stem needs to straighten out as soon as possible to be able to absorb the topside, resulting in the underside growing faster and the stem straightening out. For the same reason, plants in front of windows will always turn to the light. This active regulation of auxin transport allows plants to take ideal advantage of local and changing conditions.

   A new means of transport for auxin

   The transport of auxin through the plant plays a vital role. And, from all appearances, it is not a simple matter. The researchers identified an important new link and means of transport for auxin: PILS proteins (蛋白质). PILS proteins are vital for auxin­dependent plant growth and adjust the intracellular(细胞内的)storage of the hormone. It is exactly this compartmentalizing (分类) of auxin that seems functionally important for the various developmental processes.

Growing crops more efficiently: the right amount of auxin in the right place

 Higher auxin levels at the right moment and in the right place result in better growth and greater harvest. Better adjustment of auxin levels would make plants grow more efficiently. The researchers hope to contribute to the development of more efficient growing processes by continuing to sort out auxin transport processes.

 66. Which of the following is TRUE of auxin according to the text?

A. It helps the plant to bend at the right places while growing.

B．It prevents the roots of plants from growing faster.

C．It is no use when the surroundings have changed.

D．It helps the underside of plants grow faster than the topside.

67. What would make plants grow more efficiently?

A. Straightening out the stem.

B．The right amount of auxin in the right place.

C．Allowing plants to turn to the light.

D．Enough PILS proteins.

68. From Paragraph 3 we know that ________.

A. the researchers are not so sure if the transport for auxin is a new one

B．the levels of auxin remain the same during the growing processes of plants

C．PILS proteins delay the growth of plants

D．PILS proteins play an important part in the transport of auxin

69．According to Paragraph 2, the researchers got their results mainly by ________.

A. referring to Darwin's theory

B．observing plants straightening

C．doing intensive molecular research

D．watching plants in different places

70．Which of the following can be the best title for this passage?

A. Why Plants Grow Towards the Light?

B．Darwin's Dream Has Come True

C．How Did Scientists Find Out the Secret?

D．A New Way of the Growing of Plants

Some people make you feel comfortable when they are around. You spend an hour with them and feel as if you have known them half your life. These people have something in common. And once we know what it is, we can try to do it ourselves.

　　How is it done? Here are several skills that good talkers have. If you follow the skills, they’ll help you put people at their ease, and make friends with them quickly.

　　First of all, good talkers ask questions. Almost anyone, no matter how shy he is, will answer a question. One well-known businesswoman says, “At business lunches, I always ask people what they did that morning. It’s a common question, but it will get things going.” From there you can move on to other matters--sometimes to really personal questions. And how he answers will let you know how far you can go.

　　In addition, once good talkers have asked questions, they listen to the answers. This point seems clear, but it isn’t. Your questions should have a point and help to tell what sort of person you are talking to. And to find out, you really have to listen carefully and attentively.

　　Real listening at least means some things. First it means not to change the subject of conversation. If someone sticks to one topic, you can take it as a fact that he’s really interested in it. Real listening also means not just listening to words, but to tones of voice. If the voice sounds dull, then, it’s time for you to change the subject.

　　Last but not least, good talkers know well how to deal with the occasion of parting. If you’re saying good-bye, you may give him a firm handshake and say, “I’ve really enjoyed meeting you.” If you want to see that person again, don’t keep it a secret. Let people know what you feel, and they may walk away feeling as if they’ve known you half their life.

1. Which of the following is NOT the reason why good talkers ask questions?

A．To get the conversation going smoothly.

B．To continue the conversation with other matters.

C．To make more new friends.

D．To know how far the conversation can go.

2. How many skills does the author give us to be good talkers?

A．Three.            B．Four.             C．Five.             D．Six.

3. In general, good talkers are persons who __________.

A．can keep the conversation interesting

B．never talk too much or too little

C．always keep the conversation a secret

D．can change the topic of the conversation properly

4. If you are willing to meet someone again, __________.

A．you’d better let him know it

B．you’d better shake his hand firmly

C．you’d better keep it a secret

D．you’d better understand him further

 

Some people make you feel comfortable when they are around. You spend an hour with them and feel as if you have known them half your life. These people have something in common. And once we know what it is, we can try to do it ourselves.

How is it done? Here are several skills that good talkers have. If you follow the skills, they’ll help you put people at their ease, and make friends with them quickly.

First of all, good talkers ask questions. Almost anyone, no matter how shy he is, will answer a question. One well-known businesswoman says, “At business lunches, I always ask people what they did that morning. It’s a common question, but it will get things going.” From there you can move on to other matters—sometimes to really personal questions. And how he answers will let you know how far you can go.

Second, once good talkers have asked questions, they listen to the answers. This point seems clear, but it isn’t. Your questions should have a point and help to tell what sort of person you are talking to. And to find out, you really have to listen carefully and attentively.

Real listening at least means some things. First it means not to change the subject of conversation. If someone sticks to one topic, you can take it as a fact that he’s really interested in it. Real listening also means not just listening to words, but to tones of voice. If the voice sounds dull, then, it’s time for you to change the subject.

Finally, good talkers know well how to deal with the occasion of parting. If you’re saying good-bye, you may give him a firm handshake and say, “I’ve really enjoyed meeting you.” If you want to see that person again, don’t keep it a secret. Let people know what you feel, and they may walk away feeling as if they’ve known you half their life.

36. Asking questions might be a quite good and suitable way _______.

A. for you to make more and more new friends

B. to begin your business talks

C. to get the conversation going smoothly

D. for you to make a deep and lasting impression on others

37. After having asked somebody a question, it’ll be polite of you to _______.

A. make clear what kind of person he is

B. listen to his reply attentively

C. wait quietly and patiently for his answer

D. go on asking him more questions

38. Generally speaking, good talkers are persons who _______.

A. are good at making any topic interesting

B. never talk too much or too little

C. always speak in a gentle way

D. know how and when they should change the topic of the talk

39. If you really take delight in meeting someone again, _______.

A. you may take him as your lifelong trustworthy friend

B. it seems necessary for you to let him know it

C. it’s proper for you to give him a second handshake

D. it’ll be helpful for you to have further understanding of him

 

Some people make you feel comfortable when they are around. You spend an hour with them and feel as if you have known them half your life. These people have something in common. And once we know what it is, we can try to do it ourselves.

How is it done? Here are several skills that good talkers have. If you follow the skills, they’ll help you put people at their ease, and make friends with them quickly.

First of all, good talkers ask questions. Almost anyone, no matter how shy he is, will answer a question. One well-known businesswoman says, “At business lunches, I always ask people what they did that morning. It’s a common question, but it will get things going.” From there you can move on to other matters—sometimes to really personal questions. And how he answers will let you know how far you can go.

Second, once good talkers have asked questions, they listen to the answers. This point seems clear, but it isn’t. Your questions should have a point and help to tell what sort of person you are talking to. And to find out, you really have to listen carefully and attentively.

Real listening at least means some things. First it means not to change the subject of conversation. If someone sticks to one topic, you can take it as a fact that he’s really interested in it. Real listening also means not just listening to words, but to tones of voice. If the voice sounds dull, then, it’s time for you to change the subject.

Finally, good talkers know well how to deal with the occasion of parting. If you’re saying good-bye, you may give him a firm handshake and say, “I’ve really enjoyed meeting you.” If you want to see that person again, don’t keep it a secret. Let people know what you feel, and they may walk away feeling as if they’ve known you half their life.

1.Asking questions might be a quite good and suitable way _______.

A. for you to make more and more new friends

B. to begin your business talks

C. to get the conversation going smoothly

D. for you to make a deep and lasting impression on others

2.After having asked somebody a question, it’ll be polite of you to _______.

A. make clear what kind of person he is

B. listen to his reply attentively

C. wait quietly and patiently for his answer

D. go on asking him more questions

3.Generally speaking, good talkers are persons who _______.

A. are good at making any topic interesting

B. never talk too much or too little

C. always speak in a gentle way

D. know how and when they should change the topic of the talk

4.If you really take delight in meeting someone again, _______.

A. you may take him as your lifelong trustworthy friend

B. it seems necessary for you to let him know it

C. it’s proper for you to give him a second handshake

D. it’ll be helpful for you to have further understanding of him

 

 

阅读理解

　　Certain people make you feel comfortable when they are around．You spend an hour with them and feel as if you've known them half your life. These people have something in common. And once we know what it is,we can try to do it ourselves.

　　How is it done? Here are several skills that good talkers have. If you follow the skills,they'll help you put people at their ease (自在),and make friends with them quickly.

　　First of all good talkers ask questions. Almost anyone,no matter how shy he is,will answer a question. One well-known business woman says,“At business lunches,I always ask people what they did that morning. It's a common question，but it will get things going. ”From there you can move on to other matters -- sometimes to really personal questions. And how he answers will let you know how far you can go.

　　Second,once good talkers have asked questions,they listen for the answers. This point seems clear,but it isn't. Your questions should have a point and help to tell what sort of person you are talking to. And to find out,you really have to listen,carefully and attentively.

　　Real listening at least means some things. First it means not to change the subject of conversation,if someone sticks to one topic,you can take it as a fact that he's really interested in it. Real listening also means not just listening to words,but to tones (腔调) of voice. If the voice sounds dull (单调的),then,it's time for you to change the subject.

　　Finally,good talkers know well how to deal with the occasion (场合) of parting. If you're saying good-bye,you may give him a firm handshake and say“I've really enjoyed meeting you.” If you want to see that person again,don't keep it a secret. Let people know what you feel,and they may walk away feeling as if they've known you half their life.

(1)You'll like to stay with some people ________.

[　　]

A．who know well how they can get along with others

B．from whom you can get much help

C．who'll never get into trouble

D．who always follow you

(2)Asking questions might be a quite good way_________.

[　　]

A．for you to make more and more new friends

B．for you to end the talk

C．to get conversation going without any difficulty

D．to begin your business talks

(3)After you ask somebody a question,you should_________.

[　　]

A．make it clear what kind of person he is

B．listen to his reply attentively

C．wait quiedy for his answer

D．go on asking him more questions

(4)Good talkers are persons_______.

[　　]

A．who are good at making any topic interesting

B．who never talk too much or too little

C．who always speaks in a gentle way

D．who know how and when they should,change the topic of the talk

(5)If you really want to see someone again,________.

[　　]

A．it seems necessary for you to let him know it

B．you may take him as your good friend

C．it is necessary for you to give him a seared handshake