When a leafy plant is under attack, it doesn’t sit quietly. Back in 1983, two scientists. Jack Schultz and Ian Baldwin, reported that young maple trees getting bitten by insects send out a particular smell that neighboring plants can get. These chemicals come from the injured parts of the plant and seem to be an alarm. What the plants pump through the air is a mixture of chemicals known as volatile organic compounds. VOCs for short.

Scientists have found that all kinds of plants give out VOCs when being attacked. It’s a plant’s way of crying out. But is anyone listening? Apparently. Because we can watch the neighbors react.

Some plants pump out smelly chemicals to keep insects away. But others do double duty. They pump out perfumes designed to attract different insects who are natural enemies to the attackers. Once they arrive, the tables are turned. The attacker who was lunching now becomes lunch.

In study after study, it appears that these chemical conversations help the neighbors. The damage is usually more serious on the first plant, but the neighbors, relatively speaking, stay safer because they heard the alarm and knew what to do.

Does this mean that plants talk to each other? Scientists don’t know. Maybe the first plant just made a cry of pain or was sending a message to its own branches, and so, in effect, was talking to itself. Perhaps the neighbors just happened to “overhear” the cry. So information was exchanged, but it wasn’t a true, intentional back and forth.

Charles Darwin, over 150 years ago, imagined a world far busier, noisier and more intimate (亲密的) than the world we can see and hear. Our senses are weak. There’s a whole lot going on.

1.What does a plant do when it is under attack?

A. It sends out certain chemicals.

B. It makes noises.

C. It stands quietly.

D. It gets help from other plants.

2.Scientists find from their studies that plants can .

A. predict natural disasters.

B. help their neighbors when necessary.

C. talk to one another intentionally.

D. protect themselves against insects.

3.What can we infer from the last paragraph?

A. The word is changing faster than ever.

B. The world is more complex than it seems.

C. People have stronger senses than before.

D. People in Darwin’s time were more imaginative.

Choosing to Study Overseas

Every year, thousands of students choose to study in another country for a semester, the summer, or a year. Studying overseas can be an exciting experience for people.


Living in another country can help you to learn a language, and about another culture. You will see the world in a new way, and lean, more about yourself. 2. Many companies today want employees who speak a second language, or have experienced living or working in another country.


Once you decide to study overseas, you have to make some choices. To choose the right country or school, ask yourself: Where do I want to go and why? How much do I want to pay? How long do I want to study overseas? Do I want to live with a host family, with roommates, or alone?


Get your passport and visa (签证) early! Before you go, learn some of the language, and read about some common customs in your host country. Learn about the money. Bring some of it, and a credit card with you.

Once you are there.

After the first few weeks overseas, many students will feel a little homesick. They may miss their family, and familiar ways of doing things. 5. When you feel sad or homesick, try to talk to others, or write about your feelings in a notebook.

A. Get ready to go.

B. Make the right choice.

C. Why do you study overseas?

D. Get quick access to foreign universities.

E. Overseas study may also look good on your future resume (简历).

F. Remember that it takes time to get used to a new place, school, and culture.

G. As a study abroad you will pay tuition fees (学费) to the overseas institution.

While high school does not generally encourage students to explore new aspects of life, college sets the stage for that exploration. I myself went through this ______ process and found something that has changed my ______ at college for the better: I discovered ASL—American Sign Language (美式英语).

I never felt an urge to ______ any sign language before. My entire family is hearing, and so are all my friends. The ______ languages were enough in all my interactions (交往). Little did I know that I would discover my ______ for ASL.

The ______ began during my first week at college. I watched as the ASL Club ______ their translation of a song. Both the hand movements and the very ______ of communicating without speaking ______ me. What I saw was completely unlike anything I had experienced in the ______. This newness just left me ______ more.

After that, feeling the need to ______ further. I decided to drop in on one of ASL club’s meetings. I only learned how to ______ the alphabet that day. Yet instead of being discouraged by my ______ progress, I was excited. I then made it a point to ______ those meetings and learn all I could.

The following term, I ______ an ASL class. The professor was deaf and any talking was ______. I soon realized that the silence was not unpleasant. ______, if there had been any talking, it would have ______ us to learn less. Now, I appreciate the silence and the ______ way of communication it opens.

1.A. searching B. planning C. natural D. formal

2.A. progress B. experience C. major D. opinion

3.A. choose B. read C. learn D. create

4.A. official B. foreign C. body D. spoken

5.A. love B. concern C. goal D. request

6.A. meeting B. trip C. story D. task

7.A. recorded B. performed C. recited D. discussed

8.A. idea B. amount C. dream D. reason

9.A. disturbed B. supported C. embarrassed D. attracted

10.A. end B. past C. course D. distance

11.A. showing B. acting C. saying D. wanting

12.A. exercise B. explore C. express D. explain

13.A. print B. write C. sign D. count

14.A. slow B. steady C. normal D. obvious

15.A. chair B. sponsor C. attend D. organize

16.A. missed B. passed C. gave up D. registered for

17.A. prohibited B. welcomed C. ignored D. repeated

18.A. Lastly B. Thus C. Instead D. However

19.A. required B. caused C. allowed D. expected

20.A. easy B. popular C. quick D. new

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