A new study finds that plants communicate with one another to warn of danger.
We often consider plants as the furniture of the natural world. They don’t move; they don’t make sounds, they don’t seem to act on anything. But as is often the case, plants talk to each other all the time. And the language is chemical.
Over the years, scientists have reported that different types of plants, from trees to tomatoes, give out chemicals into the air to help neighboring plants. These chemical warnings can spread information about one plant’s disease or infestation(虫害), so other plants can protect themselves. But how plants receive and act on many of the information exactly is still mysterious.
In this week’s Science Magazine, researchers in Japan offered some explanations. They have found out one chemical message and traced it all the way from beginning to end.
The scientists looked at tomato plants infested by a common pest(害虫). To start out, they grew plants in two separate plastic spaces connected by a tube(管子). One plant was infested and placed upwind and the other was uninfested and placed downwind. The downwind plants were later exposed(暴露) to the pest. The results showed that plants near sick neighbors before were able to protect themselves better against the pest.
They found one chemical appeared more often in the exposed plants. The chemical is called HexVic. The scientists discovered where HexVic come from, and put it over healthy plants. Those plants were then able to produce HexVic. Researchers made sure that uninfested plants could fight off bugs and diseases. How do they know when to protect themselves? They are warned first by their friendly plant neighbors.
It is not a simple story, and it may be happening in more plant species than tomatoes. It may also be happening with more chemical signals that are still unknown to us. In a word, we know that plants not only communicate, but also look out for one another.
小题1:The underlined “traced” in the fourth paragraph probably means _________ here.

A．reported	B．followed
C．doubted	D．developed

小题2:For scientists, which are the right steps to watch tomato plants infested by a pest?
①  Place the infested plant upwind.
②  Place the uninfested plant downwind.
③  Expose the downwind plants to the pest.
④  Grow plants in two separate plastic spaces connected by a tube.

A．③①②④	B．①④③②
C．④①②③	D．④②①③

小题3:You can put the sentence “The researches also studied leaves from exposed plants and unexposed plants.” At the beginning of

A．Paragraph 3	B．Paragraph 4
C．Paragraph 5	D．Paragraph 6

小题4:Which of the following can be the best title of this passage?

A．Communicating Plants and Terrible Diseases

B．Talking Plants and Friendly Warnings

C．Protecting Plants and Clear Information

D．Growing Plants and Mysterious Chemicals

Do you want to make friends with a special man? Here is some information about him.
He is quiet and shy. He likes to hide his eyes behind his hair. He doesn't smile very often. However, if you talk to him about music, he'll have a lot to say. 
This is Jay Chou, the 34-year-old Taiwanese pop king(天王). His fans are so excited because he will have a singing party next month. Many pop stars will come, too. 
Chou grew up just with his mother. He did not talk much and did badly in many school subjects.  His mother noticed the boy's special interest in music and sent him to learn piano when he was only three years old. He loved it and kept on practicing. 
Chou is not very handsome. He does not speak clearly when he sings or talks. But the singer has a lot of fans. "He is really good at music. It makes him attractive(有魅力的) to me, " said Liu Jiajun, a Junior 2 student in No. 101 Middle School in Beijing.  "He is true to himself. He never follows others, "said Zhang Yujie, a Junior 1 girl at No.23 Middle School in Nanjing, Jiangsu Province. 
小题1:How old is Jay Chou now?

A．Thirty-one.

B．Thirty-two.

C．Thirty-three.

D．Thirty-four.

小题2:From this passage, we know that Jay Chou_________. 

A．is very handsome	B．has a bright smile
C．often makes too much noise	D．is a pop music star

小题3:When he was a little child, he_________. 

A．talked a lot every day

B．did well in his study at school

C．started to like music

D．had a lot of fans

小题4:According to one of his fans, Jay_________. 

A．is a good student	B．has long and beautiful hair
C．is a famous pianist	D．is very attractive to them

小题5:The sentence "He never follows others" in the last paragraph means_________. 

A．he always has his own style

B．he likes to walk alone

C．he doesn't like other people's songs at all

D．no one can catch up with him