【一】

　　ZYBAN Tablets (药片)

　　1 ZYBAN is a prescription (处方) medicine to help people quit smoking. Studies have shown that more than one third of people quit smoking for at least one month while taking ZYBAN. For many patients, ZYBAN reduces withdrawal symptoms (脱瘾过程中产生的症状) and the strong wish to smoke.

　　2 ZYBAN should be taken as directed by your doctor. The usual recommended dosing(剂量) is to take one 150-mg tablet in the morning for the first 3 days. On the fourth day, begin taking one 150-mg tablet in the morning and one 150-mg tablet in the early evening. Doses should be taken at least 8 hours apart.

　　3 For most patients, treatment will last 7 to 12 weeks. Because results vary, it may take longer for some people, Possibly up to 6 months depending on the individual. If you've been smoking for a long time, ZYBAN will help to reduce withdrawal symptoms. It's important to remain on ZYBAN for at least 7 to 12 weeks in order to quit for good. Your doctor should determine when to stop taking ZYBAN

　　4 It takes about 1 week for ZYBAN to reach the right levels in your body to be effective So, to increase your chance of quitting as much as possible, you should not stop smoking until you have been taking ZYBAN for 1 week. You should set a date to stop smoking during the second week you're taking ZYBAN.

　　5 The side effects (副作用) associated with ZYBAN are generally mild and often disappear after a few weeks. The most common side effects are dry mouth and difficulty in sleeping. If you have difficulty sleeping, avoid taking your medicine too close to bedtime

　　23 Paragraph 2_________.

　　24 Paragraph 3_________.

　　25 Paragraph 4_________.

　　26 Paragraph 5_________.

　　A What is ZYBAN?

　　B What are the side effects of taking ZYBAN?

　　C Who invented ZYBAN?

　　D How long should I take ZYBAN?

　　E How long does it take for ZYBAN to work?

　　F How should I take ZYBAN?

　　27 For the first 3 days, ZYBAN should be taken

　　28 To quit smoking for good, you should take ZYBAN for

　　29 The time it takes for ZYBAN to be effective is

　　30 The side effects of taking ZYBAN often go away

　　A around8 hours

　　B at least 7 to 12 weeks

　　C on the fourth day

　　D about 1 weekＷww.KaＯ8.CC

　　E after a few weeks

　　F only once a day

　　答案:23 F 24 D 25 E 26 B 27 F 28 B 29 D 30 E

【二】

　　1. Children enjoy shouting at a high wall and hearing the sound come back to them. These sounds are called echoes (回声). Echoes have given us a number of valuable tools.

　　2. Echo sounding devices were early used in making maps of the ocean floor. Sounds or ultrasonic (超声的) sounds make good tools for determining how deep the water is under ships. Sometimes echoes from ultrasonic distance finding devices were prevented from working by fish swimming past or by the presence of large objects. So ultrasonic devices have been replaced by other tools.

　　3. Radar is now a familiar tool. Like many others it was an unexpected discovery. It was first observed by two researchers， who were studying sound communication. They were sending signals from a station on one side of a river in Washington，

　　D IC. to a vehicle across the river. They discovered that their signals were stopped by passing ships. They recognized the importance of this discovery at once.

　　4. All this was of course just a start， from which our present radar has developed. The word "radar，" in fact， gets its name from the term "radio detection (检测) and ranging." "Ranging" is the term for detection of the distance between an object and the radar set. Today， in our scientific age， it would be difficult to manage without radar.

　　5. One of the many uses of radar is as a speed control device on highways. When a person in an automobile is driving faster than the speed limit， radar will show this clearly and the traffic police can take measures to stop him.

　　6. A pilot cannot fly a plane by sight alone. Many conditions such as flying at night and landing in dense fog require the pilot to use radar. Human eyes are not very good at determining speeds of approaching objects， but radar can show the pilot how fast nearby planes are moving.

　　23 Paragraph 2 .

　　24 Paragraph 3 .

　　25 Paragraph 4 .

　　26 Paragraph 5 .

　　A Study of Sound

　　B Highway Police

　　C Working Principles

　　D Early Use of "Radar"

　　E Useful Tools

　　F Discovery by Chance

　　27 Echo-sounding devices were early used to .

　　28 Ultrasonic device were used to .

　　29 Police use radar on highways to .

　　30 Radar helps pilots to .Ｗww.KaＯ8.CC

　　A detect nearby objects

　　B determine the depth of the ocean water

　　C decide how fast you drive

　　D stop passing ships

　　E map the ocean floor

　　F observe water flow

　　【参考答案】 23. D 24. F 25. C 26. B 27. E 28. B 29. C 30. A