题目内容

The story of quinine(奎宁)

Have you ever heard of quinine? It is one of many famous medicines discovered in the Amazon rainforest._____60____.

Quinine is used to cure malaria, a very dangerous 'disease' that is spread by mosquitoes. It is made from the bark(树皮) of the Chinchona tree. The tree is named after the Countess of Chinchona from Peru. In 1630 she was very sick with malaria and had a high fever. _____61____.  .

People in Europe heard about this medicine and then came to the rainforest to collect the plant. It was first called quinine in 1820 by two French scientists, Mr. Pelletier and Mr. Caventou. _____62____ .

For almost three hundred years quinine was used to cure malaria as well as many other dangerous illnesses. In 1944 scientists made the first artificial(人造)quinine. _____63____ because many kinds of malaria cannot be cured using modern drugs anymore.

So remember, we must protect our rainforests because maybe other important medicines will be found.

60.A    61.B    62.E    63.C

练习册系列答案
相关题目

“If you want to see a thing well, reach out and touch it!”That may seem a strange thing to say. But touching things can help you to see them better. Your eyes can tell you that a glass ball is round. But by holding it in your hands, you can feel how smooth* and cool the ball is. You can feel how heavy the glass is. When you feel all these about the ball, you really see it. With your skin, you can feel better. For example, your fingers can tell the difference between two coins*  in your pocket. You can feel a little drop of water on the back of your hand, too.

All children soon learn what “Don’t touch!” means. They hear it often. Yet most of us keep on touching things as we grow up. In shops, we touch things as we might buy: food, clothes. To see something well, we have to touch it.

There are ways of learning to see well by feeling. One way is to close your eyes and try to feel everything that touching your skin. Feel the shoes on your feet, the clothes on your body, the air on your skin. At first, it is not easy to feel these things. You are too used to them!

Most museums are just for looking. But today some museums have some things to touch. Their signs say, “Do touch!” There you can feel everything on show. If we want to see better, reach out and touch. Then you will really see!

1.By touching things, ______.

A.you will have a strange feeling

B.you will learn how to reach out your hand

C.you can tell the difference of the things

D.you can tell what colours they are

2.When people buy things in shops, they often _______.

A.try them on first

B.keep their right hands on them

C.ask about them

D.feel and touch them

3.Why does it say “At first, it is not easy to feel these things”? Because _______.

A.the things are used by people, too

B.people feel the things too often

C.people know how to use the things

D.the things are easy to feel

4.Which of the following is true?

A.Touching is more important than seeing.

B.Our feet, fingers, hands and skin can help us buy food.

C.People have to learn to see by feeling as they grow up.

D.Visitors can feel the things on show in some museums.

5.Which of the following can be the best title of the story?

A.Touching by Feeling.                    B.To See or to Feel?

C.To See Better—Feel.                   D.Ways of Feeling.

 

A woman repeated a bit of gossip (流言) about a neighbor. Within a few days the whole neighborhood knew the story. The neighbor was deeply hurt. Later the woman learned that it was completely untrue. She was very sorry and went to a wise old man to find out what she could do to repair the harm.

“Go to the market,” he said, “and buy a chicken, and have it killed, then on your way home, pick its feathers(毛) and drop them one by one along the road.” Although surprised by this advice, the woman did what she was told.

The next day the wise man said, “Now, go and collect all those feathers you dropped yesterday and bring them back to me.”

The woman followed the same road, but she was so discouraged when she found the wind had blown all the feathers away. After looking for hours, she returned with only three in her hand.

“You see,” said the old man, “it’s easy to drop them, but it’s impossible to get them back. So it is with gossip. It doesn’t take much to spread(散布) a gossip, but once you do, you can never completely undo(弥补) the wrong.”

1.Why did the woman feel sorry?

A.She didn’t know the story.

B.She hurt her neighbor deeply.

C.She was hurt deeply.

D.She was told an untrue story.

2.The underlined word “discouraged” might mean          .

A.surprised         B.excited           C.upset             D.pleased

3.Which of the following statements is true?

A.The gossip didn’t hurt anyone at all.

B.The wise man is not kind enough.

C.All the feathers had been blown away..

D.The woman was given a lesson.

4.What the wise man said has nearly the same meaning as the Chinese phrase “_________”.

A.覆水难收         B.无中生有          C.欲速不达         D.得道多助

 

It was the last day of final exams in a university. On the steps of one building, a group of engineering students were discussing the exam. On their faces was confidence . This was their last exam and then they would graduate. With all these four years of college behind them, they felt ready to go into the world.

The professor had said they could bring any book or note they wanted, but they could not talk to each other. They went into the classroom happily. The professor gave them the papers. They smiled when they found that there were only five questions.

Three hours passed and the professor began to collect the papers. The students no longer looked so confident . The professor faced the class. No one spoke. They just held papers in their hands.

The professor then asked, "How many of you finished all five questions?"

Not a hand was raised.

"How many answered four?"

Still no hand.

"Three? Two?"

The students looked worried in their seats.

"One, then?" Certainly somebody finished one.

However, nobody replied. The professor put down the papers. "That is just what I thought," he said. "I just want to tell you that, even though you have finished four years of engineering, there are still many things about the subject you don't know. These questions you could not answer are quite common in everyday practice." Then he added with a smile, “You will all pass this course, but remember——even though you are now college graduates, your education has just begun."

1.When did the story happen?

A.At the beginning of a new term.

B.After graduating from the university.

C.On the first day of the final exams.

D.On the last day of the final exams.

2.Why were the student very confident at the beginning?

A.Because they knew the coming exam would be easy

B.Because they knew the coming exam would be difficult

C.Because they knew the coming exam would be strange

D.Because they knew the coming exam would be interesting

3.How did the students feel when the professor began to collect the papers?

A.Happy.            B.Confident.         C.Worried           D.Proud

4.Which is the best title for the passage?

A.Confident Students                      B.A Common professor

C.An Easy Exam                          D.So Much to Learn

 

阅读下面短文,掌握大意,然后从A、B、C、D四个选项中选出一个最佳选项。

Miracles(奇迹)will happen if you don't give up trying. Even if you have  31 for one hundred times, you may succeed when you try for the 10lst time.

When I was born, my doctor told my mother that there was something wrong with my 32 .  They were too soft to be able to walk. Although the news was bad, my mother didn't become  33 . She didn't believe what the doctor said  34  she started to look for other ways.

My mother kept looking for other doctors for me, and finally she  35 . The doctor and his team in the hospital did   36 they could to help me. They also asked my parents to teach me to do some  37 to help me walk. One day when my mother came to pick me 38   .I crawled(爬) towards her. She was so surprised and happy that she couldn't believe  39  eyes. Crawling was not walking, but it was a good  40 . Day by day, I could walk by myself.

When I grew up, my mother   41  told me these stories. She said that if I thought of what she said whenever I met   42 , I could do anything successfully. I have been working hard and I have turned out to be a very   43  person. I get best   44 in school and I am a good dancer and swimmer.   45  my mother's strong resolution, I live a happy life now. What the story tells us, as my mother always says, is: Never give up.

1.                A.achieved       B.failed          C.suggested D.told

 

2.                A.legs           B.hands          C.arms D.eyes

 

3.                A.patient         B.confident       C.frustrated D.proud

 

4.                A.or             B.and            C.if    D.because

 

5.                A.forgot          B.changed        C.succeeded    D.worked

 

6.                A.nothing         B.somewhere      C.anywhere D.everything

 

7.                A.time           B.exercise        C.medicine D.shopping

 

8.                A.away           B.from           C.into  D.up

 

9.                A.her            B.my            C.his  D.its

 

10.               A.advice         B.end           C.chance    D.start

 

11.               A.hardly         B.never          C.always D.nearly

 

12.               A.dreams         B.experiments     C.jobs  D.difficulties

 

13.               A.excellent       B.dangerous      C.busy  D.special

 

14.               A.presents        B.friends         C.books D.grades

 

15.               A.According to    B.Instead of       C.Thanks to  D.Together with

 

 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网