People are being lured (引诱)onto Facebook with the promise of a fun, free service without realizing they're paying for it by giving up loads of personal information. Facebook then attempts to make money by selling their data to advertisers that want to send targeted messages.

　　Most Facebook users don't realize this is happening. Even if they know what the company is up to, they still have no idea what they're paying for Face book because people don't really know what their personal data is worth.

　　The biggest problem, however, is that the company keeps changing the rules Early on you keep everything private. That was the great thing about facebook you could create own little private network. Last year. The company changed its privacy rules so that many things your city. Your photo, your friends' names-were set, by default (默认)to be shared with every one on the Internet.

　　According to Facebook's vice-president Elliot Schrage, the company is simply making changes to improve its service, and if people don't share information They have a "less satisfying experience".

　　Some critics think this is more about Facebook looking to make more money. In original business model, which involved selling ads and putting then At the side of the pages totally Who wants to look at ads when they're online connecting with their friends?

　　The privacy issue has already landed Facebook in hot water in Washington. In April. Senator Charles Schumer called on Facebook to change its privacy policy. He also urged the Federal Trade Commission to set guidelines for social-networking sites."I think the senator rightly communicated that we had not been clear about what the new products were and how people could choose to use them or not to use them," Schrage admits.

　　I suspect that whatever Facebook has done so far to invade our privacy, it's only the beginning. Which is why I'm considering deactivating(撤销)my account. Facebook is a handy site, but I'm upset by the idea that my information is in the hands of people I don't trust. That's too high a price to pay.

1.What do we learn about Facebook from the first paragraph?

A.It is a website that sends messages to targeted users.

B.It makes money by putting on advertisements.

C.It profits by selling its users' personal data.

D.It provides loads of information to its users.

2.What does the author say about most Facebook users?

A.They are reluctant to give up their personal information.

B.They don't know their personal data enriches Facebook.

C.They don't identify themselves when using the website.

D.They care very little about their personal information.

3.Why does Facebook make changes to its rules according to Elliot Schrage?

A.To render better service to its users.

B.To conform to the Federal guidelines.

C.To improve its users' connectivity.

D.To expand its scope of business.

4.Why does Senator Charles Schumer advocate?

A.Setting guidelines for advertising on websites.

B.Banning the sharing of users' personal information.

C.Formulating regulations for social-networking sites.

D.Removing ads from all social-networking sites.

5.Why does the author plan to cancel his Facebook account?

A.He is dissatisfied with its current service.

B.He finds many of its users untrustworthy.

C.He doesn't want his personal data abused.

D.He is upset by its frequent rule changes.

 

The government-run command post in Tunis is staffed around the clock by military personnel, meteorologists and civilians. On the wall are maps, crisscrossed with brightly colors arrows that painstakingly track the fearsome path of the enemy.

　　What kind of invader gives rise to such high-level monitoring? Not man, not beast, but the lowly desert locust(蝗虫). In recent months, billions of the 3-inch-long winged warriors have descended on Algeria, Libya, Morocco and Tunisia, blackening the sky and eating up crops and vegetation. The insect invasion, the worst in 30 years, is already creating great destruction in the Middle East and is now treating southern Europe. The current crisis began in late 1985 near the Red Sea. Unusually rainy weather moistened the sands of the Sudan, making them ideal seedbed for the locust, which lays its eggs in the earth. The insect onslaught threatens to create yet another African famine. Each locust can eat its weight (not quite a tenth of an ounce) in vegetation every 24 hours. A good-size swarm of 50 billion insects eats up 100,000 tons of grass, trees and crops in a single night.

　　All ﹩150 million may be needed this year. The U.S. has provided two spraying planes and about 50,000 gal. of pesticide. The European Community has donated ﹩3.8 million in aid and the Soviet Union, Canada, Japan and China have provided chemical-spraying aircraft to help wipe out the pests. But relief efforts are hampered by the relative mildness of approved pesticides, which quickly lose their deadly punch and require frequent replications. The most effective locust killer dieldrin has been linked to cancer and is banned by many Western countries and some of the affected African nations. More than 5 million acres have been dusted with locust-killing chemicals; another 5 million will be treated by the end of June.

　　On May 30, representatives of Tunisia, Algeria, Libya, Morocco and Mauritania will meet in Algiers to discuss tactics to wipe out the ravenous swarms. The move is an important step, but whatever plan is devised, the locust plague promised to get worse before the insects can be brought under control.

1.The main idea of the first sentence in the passage is that ______.

　 A. the command post is stationed with people all the time.

　 B. the command post is crowded with people all the time.

　 C. there are clocks around the command post.

　 D. the clock in the command post is taken care of by the staff.

2.The favorable breeding ground for the locust is ______.

　 A. rich soil.                               B. wet land

　 C. paces covered crops and vegetation        D. the Red Sea

3.People are alert at the threat of the locust because ______.

　 A. the insects are likely to create another African famine.

　 B. the insects may blacken the sky.

　 C. the number of the insects increases drastically.

　 D. the insects are gathering and moving in great speed.

4.Which of the following is true?

　 A. Once the pesticides are used, locust will die immediately.

　 B. Relief efforts are proved most fruitful due to the effectiveness of certain pesticides.

　 C. Dieldrin, the most effective locust killer, has been widely accepted in many countries.

　 D. Over 10 million acres of affected area will have been treated with locust-killing chemicals by the end of June.

5. The purpose for affected nations to meet in Algiers on May 30 is ______.

　 A. to devise anti-locust plans.

　 B. to wipe out the swarms in two years.

　 C. to call out for additional financial aid from other nations.

D. to bring the insects under control before the plague gets worse.

 

    Scratchy throats, stuffy noses and body aches all spell misery, but being able to tell if the cause is a cold or flu may make a difference in how long the misery lasts.

    The American Lung Association (ALA) has issued new guidelines on combating colds and the flu(流感), and one of the keys is being able to quickly tell the two apart. That's because the prescription drugs available for the flu need to be taken soon after the illness sets in. As for colds, the sooner a person starts taking over-the-counter remedy, the sooner relief will come.

    The common cold and the flu are both caused by viruses. More than 200 viruses can cause cold symptoms, while the flu is caused by three viruses - flu A, B and C. There is no cure for either illness , but the flu can be prevented by the flu vaccine, which is, for most people, the best way to fight the flu, according to the ALA. But if the flu does strike, quick action can help. Although the flu and common cold have many similarities , there are some obvious signs to look for.

    Cold symptoms such as stuffy nose, runny nose and scratchy throat typically develop gradually, and adults and teens often do not get a fever. On the other hand, fever is one of the characteristic features of the flu for all ages. And in general, flu symptoms including fever and chills, sore throat and body aches come on suddenly and are more severe than cold symptoms.

    The ALA notes that it may be particularly difficult to tell when infants and preschool age children have the flu. It advises parents to call the doctor if their small children have flu-like symptoms.

Both cold and flu symptoms can be eased with over-the-counter medications as well. However, children and teens with a cold or flu should not take aspirin for pain relief because of the risk of Reye syndrome(综合症) ，a rare but serious condition of the liver and central nervous system.

There is, of course, no vaccine for the common cold. But frequent hand washing and avoiding close contact with people who have colds can reduce the likelihood of catching one.

　

According to the author, knowing the cause of the misery will help ________.

　A) shorten the duration of the illness

　B) the patient buy medicine over the counter

　C) the patient obtain cheaper prescription drugs

　D) prevent people from catching colds and the flu

We learn from the passage that ___________.

 A) one doesn't need to take any medicine if he has a cold or the flu

B) aspirin should not be included in over-the-counter medicines for the flu

C) delayed treatment of the flu will harm the liver and central nervous system

D) over-the-counter drugs can be taken to ease the misery caused by a cold or the flu

According to the passage, to combat the flu effectively, ___________.

A) one should identify the virus which causes it

B) one should consult a doctor as soon as possible

C) one should take medicine upon catching the disease

D) one should remain alert when the disease is spreading

Which of the following symptoms will distinguish the flu from a cold?

A)A stuffy nose. 　　                     B) A high temperature.

C)A sore throat.　　                       D) A dry cough.

If children have flu-like symptoms, their parents _______________.

A) are advised not to give them aspirin

B) should watch out for signs of Reye syndrome

C) are encouraged to take them to hospital for vaccination

D) should prevent them from mixing with people running a fever

“Soon, you’re going to have to move out!” cried my neighbor upon seeing the largest tomato plant known to mankind, or at least known in my neighborhood.

One tiny 9-inch plant, bought for $1.25 in the spring, has already taken over much of my rose bed, covering much of other plants, and is well on its way to the front door.

Roses require a good deal of care, and if it weren’t for the pleasure they give, it wouldn’t be worth the work. As it is, I have a garden full of sweet-smelling roses for most of the year. Bushes must be pruned(剪枝) in early spring, leaving ugly woody branches until the new growth appears a few weeks later. It was the space available in the garden that led me into planting just one little tomato plant. A big mistake.

Soil conditions made just perfect for roses turn out to be even more perfect for tomatoes. The daily watering coupled with full sun and regular fertilizing (施肥) have turned the little plant into a tall bush. The cage I placed around it as the plant grew has long disappeared under the thick leaves.

Now the task I face in harvesting the fruit is twofold; First, I have to find the red ones among the leaves, which means I almost have to stand on my head, and once found I have to reach down and under, pick the tomatoes and withdraw(缩回) my full fist without dropping the prize so dearly won. I found two full-blown white roses completely hidden as I picked tomatoes in June. But they were weak and the leaves already yellow for lack of light.

Here I am faced with a painful small decision: To tear up a wonderful and productive tomato plant that offers up between ten and twenty ripe sweet tomatoes each day or say goodbye to several expensive and treasured roses. Like Scarlett in Gone With the Wind, I’ll think about that tomorrow.

1.What are the requirements for the healthy growth of rose?

A．Frequent pruning and fertilizing.　　        B．A lot of care and the right soil.

C．Tomato plants grown alongside.　　         D．Cages placed around the roots.

2.The writer planted the tomato because _________.

A．there was room for it in the garden

B．the soil was just right for it

C．it cost only $1.25

D．the roses’ branches needed to be covered

3.This year the writer’s roses were __________.

A．removed from the rose bed

B．largely hidden under the tomato plant

C．mostly damaged by too much sunlight

D．picked along with the tomatoes

4.By saying “the prize so dearly won” in paragraph 5, the writer wants to ________.

A．express her liking for the roses

B．show the hardship of growing the roses

C．show the difficulty in picking the tomatoes

D．express her care for the tomatoes

5.In the situation described in the text, one good thing is that ________.

A．the writer has a daily harvest of tomatoes

B．the roses cost the writer little money

C．someone will help the writer make the decision

D．the writer can now enjoy both the roses and tomatoes

 

So long as teachers fail to distinguish between teaching and learning , they will continue to undertake to do for children that which only children can do for themselves. Teaching children to read is not passing reading on to them. It is certainly not endless hours spent in activities about reading. Douglas insists that“ reading cannot be taught directly and schools should stop trying to do the impossible”.

　　Teaching and learning are two entirely different processes. They differ in kind and function. The function of teaching is to create the conditions and the climate that will make it possible for children to devise the most efficient system for teaching themselves to read. Teaching is also public activity. It can be seen and observed.

　　Learning to read involves all that each individual does to make sense of the world of printed language. Almost all of it is private ,for learning is an occupation of the mind ,and that process is not open to public scrutiny.

　　If teacher and learner roles are not interchangeable ,what then can be done through teaching that will aid the child in the quest（探索）for knowledge? Smith has one principal rule for all teaching instructions. “Make learning to read easy, which means making reading a meaningful, enjoyable and frequent experience for children. ”

　　When the roles of teacher and learner are seen for what they are, and when both teachers fulfill them appropriately, then much of the pressure and feeling of failure for both is eliminated. Learning to read is made easier when teachers create an environment where children are given the opportunity to solve the problem of leaning to read by reading.

　The problem with the reading course as mentioned in the first paragraph is that ________.

　　A. it is one of the most difficult school courses

　　B. students spend endless hours in reading

　　C. reading tasks are assigned with little guidance

　　D. too much time is spent in teaching about reading

　The teaching of reading will be successful if ________.

　　A. teachers can improve conditions at school for the students

　　B. teachers can enable students to develop their own way of reading

　　C. teachers can devise the most efficient system for reading

　　D. teachers can make their teaching activities observable

　The underlined word“ scrutiny” most probably means“________”.

　　A. inquiry　　　　　　　　　　　 B. observation

　　C. control　　　　　　　　　　　 D. suspicion

According to the passage, learning to read will no longer be a difficult task when ________.

　　A. children become highly motivated

　　B. teacher and learner roles are interchangeable

　　C. teaching helps children in the search for knowledge

　　D. reading enriches children’s experience

The main idea of the passage is that ________.

　　A. teachers should do as little as possible in helping students learn to read

　　B. teachers should encourage students to read as widely as possible

　　C. reading ability is something acquired rather than taught

　　D. reading is more complicated that generally believed