Internet use appears to cause a decline in psychological well-being(安康), according to research at Carnegie Mellon University.

Even people who spent just a few hours a week on the Internet experienced more depression and loneliness than those who logged on less frequently, the two-year study showed. And it wasn’t that people who were already feeling bad spent more time on the Internet, but that using the Net actually appeared to cause the bad feeling.

Researchers are puzzling over the results, which were completely contrary to their expectations. They expected that the net would prove socially healthier than television, since the Net allows users to choose their information and to communicate with others.

The fact that Internet use reduces time available for family and friends may account for the drop in well-being, researchers suggested. Faceless, bodiless “virtual”(虚拟的)communication may be less psychologically satisfying than actual conversation, and the relationship formed through it may be shallower. Another possibility is that exposure to the wider world via the Net makes users less satisfied with their lives.

“But it’s important to remember this is not about the technology per se; it’s about how it is used,” says psychologist Christine Riley of Intel, one of the study’s sponsors. “It really points to the need for considering social effects in terms of how you design applications and services for technology.”

1.The best title for this passage would be ________.

A. Internet may Cause Depression

B. The Dark Side of Internet

C. How to Use Technology Properly

D. The Importance of Psychological Well-being

2.Internet use may cause a decline in psychological well-being because ________.

A. people who were already feeling bad spend more time on the Internet

B. Internet users thought the world was wider than it really was

C. people were too eager to turn the “virtual” communication into reality

D. people have less time for actual communication with their family and friends

3.What does the underlined Latin word “per se” (in Para. 5) mean?

A. probably

B. absolutely

C. oneself

D. itself

4.What’s the tone of the passage?

A. Optimistic.

B. Critical.

C. Objective.

D. Pessimistic.

When I spent the summer with my grandmother, she always set me down to the general store with a list. Behind the counter was a lady like no one I’d ever seen.

“Excuse me,” I said. She looked up and said, “I’m Miss Bee.”

“I need to get these.” I said, holding up my list. “So? Go get them. ” Miss Bee pointed to a sign. “There’s no one here except you and me and I’m not your servant, so get yourself a basket from that pile.”

I visited Miss Bee twice a week that summer. Sometimes she shortchanged me. Other times she overcharged. Going to the store was like going into battle. All summer long she found ways to trick me. No sooner had I learned how to pronounce “bicarbonate of soda” and memorized its location on the shelves than she made me hunt for it all over again. But by summer’s end the shopping trip that had once taken me an hour was done in 15 minutes. The morning I was to return home, I stopped in to get some run.

“All right, little girl,” she said. “What did you learn this summer?” “That you’re a meanie!” I replied. Miss Bee just laughed and said, “I know what you think of me. Well, I don’t care! My job is to teach every child I meet life lessons. When you get older you’ll be glad!” Glad I met Miss Bee? Ha! The idea was absurd.

Until one day my daughter came to me with homework troubles. “It’s too hard,” she said. “Could you finish my math problems for me?”

“If I do it for you, how will you ever learn to do it yourself?” I said. Suddenly, I was back at that general store where I had learned the hard way to add up my bill by myself. Had I ever been overcharged since?

1. How did the author first shop in the store?

A. She shopped with her grandmother together.

B. Miss Bee gave her a hand.

C. She asked a servant to help her.

D. She served herself.

2. What can we infer about Miss Bee?

A. Her tricks made the author finish shopping in a shorter time.

B. She neither shortchanged the author nor overcharged her.

C. Teaching kids lessons was Miss Bee’s job at that time.

D. Miss Bee used to learn to pronounce the names of some goods in the store.

3. The author mentioned her daughter to __________.

A. show her satisfaction with her kid’s homework.

B. tell readers Miss Bee’s effect on her.

C. inform readers of her irresponsibility for her kid.

D. express her opposition to Miss Bee.

Scientists are debating how to limit their newly-discovered power to change genetic structure (结构). Scientists already modify the genes (基因) of farm animals and agricultural plants to make them more productive or stronger. But now they can also change genes in wild animals and plants. These genes would continue into later generations. For example, it may be possible for scientists to remove from existence the kind of mosquitoes, small flying insects, that carry the Zika virus. They might also be able to permanently remove species (物种) of plants and animals that are damaging to other species.

In a report published last week, the U. S. National Academies of Sciences, Engineering and Medicine (NAS) said it supports continued research on this kind of gene control. But it warned that it is not possible to know what will happen when these changed plants and animals are released (释放) into the wild.

Sixteen biologists, ethicists (伦理学家) and policymakers are on an NAS committee that is examining the issue. They say that there is value to the new technology. But, they say, there is not enough evidence to support the release of modified organisms (生物体) from the laboratory into nature.

Many people would support stopping mosquitoes and rats from carrying diseases. But scientists say we must understand the possible scientific, ethical, legal and social results of such action before we decide whether to take it. Gene modification is spread through reproduction (繁殖).

Changed genes will continue to spread as long as an animal or plant continues to reproduce. They cannot be limited to a farm or kept within a country's borders. Scientists are wondering what may happen if a modified organism mates with another species. They are not yet sure how the modified genes would affect the other species. It is possible that those genes could harm those creatures or even lead to their disappearance from our planet.

【小题1】What possible advantage does gene control in wild animals and plants have?

A. Changing the Zika virus permanently.

B. Getting rid of damaging species forever.

C. Having the changed genes in their next generations.

D. Making all the species more productive and stronger.

【小题2】As for genetically changed wild animals and plants, what are scientists worried about?

A. They may become weaker or die out.

B. They may be more productive than before.

C. They may cause damage to their living habitat.

D. Their genes may spread to later generations.

【小题3】Which of the following is true according to the passage?

A. Scientists are certain what exact results gene modification leads to.

B. Gene modification can benefit some farm animals and agricultural plants.

C. Scientists won't modify any genes before they make the final decision.

D. Gene modification will be encouraged in more creatures in the near future.

【小题4】The article is mainly intended to ________.

A. appeal against research on gene control

B. show how to change genetic structure

C. inform us of power and danger of gene control

D. give the reason why gene modification is necessary

The morning had been a disaster. My tooth was aching, and I’d been in an argument with a friend. Her words still hurt: “The trouble with you is that you won’t put yourself in my place. Can’t you see things from my point of view?” I shook my head stubbornly—and felt the ache in my tooth. I’d thought I could hold out till my dentist came back from holiday, but the pain was really unbearable. I started calling the dentists in the phone book, but no one could see me immediately. Finally, at about lunchtime, I got lucky.

“If you come by right now,” the receptionist said, “the dentist will fit you in.”

I took my purse and keys and rushed to my car. But suddenly I began to doubt about the dentist. What kind of dentist would be so eager to treat someone at such short time? Why wasn’t he as busy as the others?

In the dentist’s office, I sat down and looked around. I saw nothing but the bare walls and I became even more worried. The assistant noticed my nervousness and placed her warm hand over my ice-cold one.

When I told her my fears, she laughed and said, “Don’t worry. The dentist is very good.”

“How long do I have to wait for him?” I asked impatiently.

“Come on, he is coming. Just lie down and relax. And enjoy the artwork,” the assistant said.

“The artwork?” I was puzzled.

The chair went back, suddenly I smiled. There was a beautiful picture, right where I could enjoy it: on the ceiling. How considerate the dentist was! At that moment, I began to understand what my friend meant by her words.

What a relief!

1. Which of the following best describes the author’s feeling that morning?

A. Upset. B. Nervous. C. Satisfied. D. Cheerful.

2.What made the author begin to doubt about the dentist?

A. The dentist’s being as busy as the other dentists.

B. The dentist’s agreeing to treat her at very short time.

C. The surroundings of the dentist’s office.

D. The laughing assistant of the dentist.

3.Why did the author suddenly smile?

A. Because the dentist came at last.

B. Because she could relax in the chair.

C. Because she saw a picture on the ceiling.

D. Because the assistant kept comforting her.

4.What did the author learn from her experience most probably?

A. Strike while the iron is hot.

B. Have a good word for one’s friend

C. A friend in need is a friend indeed.

D. Put oneself in other’s shoes

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