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Increasingly, Americans are becoming their own doctors, by going online to diagnose their symptoms, order home health tests or medical devices, or even self-treat their illnesses with drugs from Internet pharmacies(藥店). Some avoid doctors because of the high cost of medical care, especially if they lack health insurance. Or they may stay because they find it embarrassing to discuss their weight, alcohol consumption or couch potato habits. Patients may also fear what they might learn about their health, or they distrust physicians because of negative experiences in the past. But playing doctor can also be a deadly game.

Every day, more than six million Americans turn to the Internet for medical answers – most of them aren’t nearly skeptical enough of what they find. A 2002 survey by the Pew Internet & American Life Project found that 72 percent of those surveyed believe all or most of what they read on health websites. They shouldn’t. Look up “headache”, and the chances of finding reliable and complete information, free from a motivation for commercial gain, are only one in ten, reports an April 2005 Brown Medical School study. Of the 169 websites the researchers rated, only 16 scored as “high quality”. Recent studies found faulty facts about all sorts of other disorders, causing one research team to warn that a large amount of incomplete, inaccurate and even dangerous information exists on the Internet.

The problem is most people don’t know the safe way to surf the Web. “They use a search engine like Google, get 18 trillion choices and start clicking. But that’s risky, because almost anybody can put up a site that looks authoritative(權(quán)威的), so it’d hard to know if what you’re reading is reasonable or not,” says Dr. Sarah Bass from the National Cancer Institute.

1. According to the text, an increasing number of American _____.

2. Some Americans stay away from doctors because they _____.

3.According to the study of Brown Medical School, ______.

4. Which of the following is the author’s main argument?

假設(shè)你是李華，你的澳大利亞朋友Dick聽說中國的中小學正在減輕學生的學習負擔，來信詢問有關(guān)情況。請你根據(jù)下表提供的信息，寫一封回信，談一談減負給你的學習和生活帶來的變化。

周末活動（減負前） 周末活動（減負后）

白天：上課、做作業(yè) 白天：參觀博物館，學習電腦、繪畫等

晚上：做作業(yè) 晚上：看新聞、讀書、看報

就寢時間：11:30 就寢時間：10:30 

注意：1.詞數(shù)100左右。2.開頭已為你寫好。

生詞：reduce learning load減輕學習負擔

Dear Dick,

　　How nice to hear from you again.

...

Best wishes,

Li Hua

It sounds like a good idea, but it _________ to be seen whether it will succeed.

 Without the air to hold some of the sun’s heat, the earth at night _____ too cold for us to live.

 At the back of the book _______ of the works available for further research.

 It _______ that I had forgotten to lock the door this morning before I left home.

Which one of the following answers is NOT suitable? ________

 _______ the fact that three quarters of the earth’s surface is covered with water, we can say that it is a ________ planet.

 The team trained hard _______ they could win the match this year.

At that moment of failure, he didn’t lose confidence, instead, _____ to try it again.

It is obviously that his parents didn’t teach him good _______.