根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
In so many ways, cyberspace(网络空间) mirrors the real world. People ask for information, play games, and share hobby tips. 1.Still others look for friendship, or even love.
Unlike the real world, however, your knowledge about a person is limited to words on a computer screen. Identity(身份) and appearance mean very little in cyberspace. 2.So even the shyest person can become a chat-room star.
Usually, this “faceless” communication doesn’t create problems. Identity doesn’t really matter when you’re in a chat room discussing politics or hobbies. In fact, this emphasis on the ideas themselves makes the Internet a great place for exciting conversation(对话). 3.
But some Internet users want more than just someone to chat with. 4.Is cyberspace a good place to find love? That answer depends on whom you ask.
5.Others fail miserably.
A. Rather, a person’s thoughts—or at least the thoughts they type—are what really count (重要).
B. Others buy and sell products.
C. They’re looking for serious love relationships.
D. But cyberspace is different from the real world in some aspects (方面).
E. Some of these relationships actually succeed.
F. Where else can so many people come together to chat?
G. Chatting online isn’t always reliable (可靠的).
Animals can move from place to place, but plants cannot. When an animal is under attack, it can run away or fight back. Plants certainly cannot run away, and they lack teeth and claws. But plants can defend themselves by using both physical and chemical means.
Some plants have their own ways to keep animals away. For example, the leaves of the holly plant have sharp spines (刺) that discourage grass-eating animals. Holly leaves on lower branches have more spines than leaves on upper branches. This is because the lower leaves are easier for most animals to reach.
Some plants, such as the oak tree, have thick and hard leaves that are difficult for animals to eat. Some grasses may contain a sandy material; eating such grasses wears down the animal’s teeth.
Many plants also have chemical defenses. Some plants produce chemicals that taste bitter or cause an unpleasant reaction. Some plants may fight against an attack by increasing the production of these chemicals. When a caterpillar (毛虫) bites a tobacco leaf, the leaf produces a chemical messenger. This messenger sends to the roots the information to produce more nicotine. The higher levels of nicotine discourage the caterpillar.
Many plants depend on both physical and chemical defenses. A certain plant in China, for instance, has prickly (多刺的) leaves, and each prickle contains poisonous venom (毒液). A single experience with this kind of plant will teach an animal to stay away from it in the future.
1.The holly plant has more spines on the lower leaves because most animals________.
A．are not tall enough B．like the lower leaves only
C．are not clever enough D．can get the lower leaves easily
2.To defend themselves, oak trees use________.
A．chemical means B．physical means
C．bitter chemicals D．sandy materials
3.How does tobacco protect itself against an attack from a caterpillar?
A．Its leaves fight against the attack by physical means.
B．Its roots send a messenger to discourage the caterpillar.
C．Its roots increase the production of nicotine when it is attacked.
D．Its leaves produce poisonous sand to drive the caterpillar away.
4.What would be the best title for this passage?
A．Plants and Animals B．How Plants Defend Themselves
C．Attacks and Defenses D．How Animals Eat Plant Leaves
A small piece of fish each day may keep the heart doctor away. That's the finding of an extensive study of Dutch men in which deaths from heart disease were more than 50 percent lower among those who consumed(消费) at least an ounce of salt water fish per day than those who never ate fish.
The Dutch research is one of three human studies that give strong scientific backing to the long-held belief that eating fish can provide health benefits, particularly to the heart.
Heart disease is the number-one killer in the United States , with more than 550, 000 deaths occurring from heart attacks each year . But researchers previously have noticed that the incidence (发生率)of heart disease is lower in cultures that consume more fish than Americans do. There are fewer heart disease deaths, for example, among the Eskimos of Greenland, who consume about 14 ounces of fish a day, and among the Japanese, whose daily fish consumption averages more than 3 ounces.
During the next two decades, 78 of the men died from heart disease. The fewest deaths were among the group who regularly ate fish, even at levels far lower than those of the Japanese or Eskimos. This relationship was true regardless of other factors such as age , high blood pressure , or blood cholesterol (胆固醇) levels .
1.Which of the following is NOT true according to the passage?
A. The Dutch research has proved that eating fish can help to prevent heart disease.
B. There is a low incidence of heart disease in countries like Japan and Greenland.
C. Among all the diseases heart disease is the most dangerous in America.
D. Heart doctors won’t call your house so long as you keep eating fish each day.
2.The underlined phrase “this relationship” refers to the connection between _______ and the incidence of heart disease.
A. the amount of fish eaten B. regular fish-eating
C. the kind of fish eaten D. people of different regions
3.The passage is mainly about __________________.
A. the high incidence of heart disease in some countries
B. the changes in people’s diet in the United States
C. the daily fish consumption of people in different cultures
D. the effect of fish eating regularly on people’s health
4.How many lives could probably be saved each year in the United States by eating fish according to the Dutch study?
A. 550, 000. B. 110,000. C. 275,000. D. 852.
Mobile phone (手机) has become a problem for middle schools. Some middle schools in Australia have banned (禁止) students from carrying mobile phones during school hours.
Mobile phone used among children has become a problem for the school this year. Several children have got mobile phone as Christmas gifts, and more students will want them.
Mary Bluett, an official, said mobile phone use is a distraction (分心的事) to student during school hours and it also gives teachers so much trouble in their classrooms. Teachers were also saying that sometimes students might use phone messages to cheat during exams.
She said some schools had tried to ban mobile phones. Some parents felt unhappy because they couldn’t get in touch with their children.
Many teachers said students should not have mobile phones at school, but if there was a good reason, they could leave their phones at school office. They also said there were many reasons why the students should not have mobile phones at school: they were easy to lose and were a distraction from studies.
Many people say that they understand why parents would want their children to have phones, but they think schools should let the students know when they can use their mobile phones.
1.We know from the passage that some children get mobile phones from _______.
A. the makers and sellers B. the passers-by and strangers
C. their parents and friends D. some mobile phone users
2.What does the underlined word “cheat” mean in the passage?
A. 聊天 B. 核对 C. 查询 D. 作弊
3.Some parents felt unhappy because they couldn’t _________ during school hours.
A. use their mobile phones B. leave their mobile phones at school office
C. help the teachers with their work D. get in touch with their children
4.The passage tells us that _________.
A. students shouldn’t have mobile phones at school except for some special reasons
B. it is impossible to ban students from using mobile phone at school
C. some parents felt unhappy because they couldn’t use their phones at school
D. parents should teach their children how to use mobile phones during school hours
Here are many kinds of vacations. People can go traveling abroad or spend their holidays at the seaside. One kind of vacation is camping. Many Americans enjoy going camping because it is good for them. Each summer millions of Americans drive to the countryside where they find places to camp. There are a lot of national parks in the USA and these national parks mostly stand on the mountains. They are people’s favorite camping places.
Campers are free from the busy life in the noisy and crowded city. They throw themselves into the arms of Mother Nature. They enjoy the fresh air, lakes and forests in these parks. Hiking, swimming and fishing are the main kinds of exercise. They can see different sorts of animals and plants there.
Some campers have trailers which they pull behind their cars to the camping places. Trailers are like small houses on wheels, having many of the things that people use in their homes, such as electricity, hot water, kitchen tools and things like that. But most campers don’t have trailers. Tent campers lead a very simple but healthy life.
Camping is a pleasant sports activity. After living a while in the open, campers become as fresh as paintings. They feel relaxed.
1.What kind of life do campers live before they go camping?
A. An easy life. B. A happy life. C. A busy life. D. A healthy life.
2.Most campers don’t have trailers because ______.
A. they are not rich B. they think it is inconvenient
C. they want to live a simple life D. they like to do exercises
3.According to the passage, what do many Americans get from camping?
A. Health and happiness. B. A strong body. C. Convenience. D. A simple life.
阅读下面短文，掌握其大意，从每题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
Is it difficult for you to get up in the morning? Do you sometimes oversleep? Are you often late for work or school? Then Hiroyuki Sugiyama of Japan has a(n) 1bed for you. Hiroyuki’s bed will 2you up in the morning! Here is how it 3.
The bed is 4an alarm clock. First, the alarm clock rings. You have a few minutes to wake up. Next, a tape recorder in the bed plays 5music or other pleasant sounds. The tape recorder in Hiroyuki’s bed plays a recording of his girlfriend. She whispers in a sweet 6, “Wake up, darling, please.” A few minutes later, a second recording 7. The sound recording can be loud music or 8sounds. Hiroyuki hears a recording of his boss. His boss 9, “Wake up immediately, 10you’ll be late!”
If you don’t get up 11the second recording, you 12be sorry! A mechanical “foot” is in the bed. The mechanical foot kicks you in the head. Then the bed waits a few 13minutes. What! You’re 14in bed! Slowly the 15of the bed rises higher and higher. The foot of the bed goes lower and lower. 16, the bed is vertical（垂直的）. You slide off the bed and onto the floor. You are out of bed and 17.
Hiroyuki made his bed because he wanted to 18a contest. He works for Honda Motor Company. Once every two years Honda has a contest for its 200,000 employees—“All-Honda Idea Contest.” The employees think of new 19. If their ideas win, the employees win 20. Hiroyuki Sugiyama won one of the top prizes for his bed.
1.A. expensive B. special C. valuable D. comfortable
2.A. get B. catch C. make D. let
3.A. works B. runs C. happens D. moves
4.A. separated from B. made up of C. connected to D. made into
5.A. loud B. classical C. pop D. soft
6.A. sound B. voice C. noise D. way
7.A. sends B. turns C. plays D. appears
8.A. pleasant B. interesting C. unpleasant D. funny
9.A. shouts B. announces C. whispers D. persuades
10.A. and B. but C. so D. or
11.A. before B. until C. since D. after
12.A. can B. will C. may D. need
13.A. other B. another C. more D. one
14.A. still B. yet C. already D. even
15.A. end B. middle C. body D. top
16.A. However B. Finally C. Therefore D. Otherwise
17.A. angry B. work C. happy D. awake
18.A. achieve B. win C. gain D. defeat
19.A. ideas B. thoughts C. facts D. ways
20.A. praises B. contests C. prizes D. medals
