D        
"In only six days I lost seven pounds of weight. "
"Two full inches in the first three days!"
These are the kinds of statements used in magazine, newspaper, radio and television ads, promising new shapes and new looks to those who buy the medicine or the device. The promoters of products say they can shape the legs, slim the face, smooth wrinkles, or in some other way to add to beauty or desirability.
Often such products are nothing more than money-making things for their promoters. The results they produce are questionable and some are dangerous to health.
To understand how these products can be legally promoted to the public, it is necessary to understand something of the laws covering their regulation. If the product is a drug, FDA(Food and Drug Administration )can require proof (證明) under the Food, Drug, and Cosmetic Act that is safe and effective before it is put on the market. But if the product is a device, FDA has no authority to require premarketing proof of safety or effectiveness. If a product already on the market is a danger to health. FDA can request the producer or distributor to remove it from the market voluntarily, or it can take legal action, including seizure (查封) of the product.
One notable case a few years ago involved an electrical device called the Relaxacisor, which had been sold for reducing the waistline. The Relaxacisor produced electrical shocks to the body through contact pads. FDA took legal action against the distributor to stop the sale of the device on the grounds that it was dangerous to health and life.
Obviously, most of the devices on the market have never been the subject of court proceedings (法律訴訟),and new devices appear continually. Before buying, it is up to the consumer to judge the safety or effectiveness of such items.
71. It can be inferred that the ads mentioned in the text are        .
A. objective    B. costly    C. unreliable    D. illegal
72. Which of the following is true according to the text?
A. The court is in charge of removing dangerous products.
B. New products are more likely to be questionable.
C. The production of a device must be approved by FDA.
D. The promoters usually just care about profits.
73. FDA can ask for the proof of safety and effectiveness of a product        .
A. if it is a drug      
B. if it is a device
C. if its consumers make complaints
D. if its distributors challenge FDA's authority
74. The Relaxacisor is mentioned as        .
A. a product which was designed to produce electricity
B. a product whose distributor was involved in a legal case
C. a successful advertisement of a beauty product
D. an example of a quality beauty product
75. The author intends to        .
A. make consumers aware of the promoters' false promises
B. show the weakness of the law on product safety
C. give advice on how to keep young and beautiful
D. introduce the organization of FDA


71--75    CDABA  

解析

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：閱讀理解

Everyone has got two personalities—the one that is shown to the world and the other that is secret and real．You don't show your secret personality when you're awake because you can control your behaviour，but when you're asleep， your sleeping position shows the real you．In a normal night，of course，people frequently change their position．The important position is the one that you go to sleep in．

If you go to sleep on your back，you're a very open person．You normally trust people and you are easily influenced by fashion or new ideas．You don't like to upset people，so you never express your real feelings．You're quite shy and you aren't very confident．

If you sleep on your stomach，you are a rather secretive（不坦率的）person．You worry a lot and you're always easily upset．You're very stubborn（頑固的），but you aren't very ambitious．You usually live for today not for tomorrow．This means that you enjoy having a good time．

If you sleep curled up（卷曲），you are probably a very nervous person．You have a low opinion of yourself and so you're often defensive．You're shy and you don't normally like meeting people．You prefer to be on your own．You're easily hurt．

If you sleep on your side，you have usually got a well-balanced personality．You know your strengths and weaknesses．You're usually careful． You have a confident personality．You sometimes feel anxious，but you don't often get depressed．You always say what you think even if it annoys people．

According to the writer，you naturally show your secret and real personality _____.

A．only in a normal night

B．only when you go to sleep

C．only when you refuse to show yourself to the world

D．only when you change sleeping position

Which is NOT mentioned in the second paragraph about a person's personality？

A．He or she is always open with others．

B．He or she always likes new ideas earlier than others．

C．He or she is always easily upset．

D．He or she tends to believe in others．

Point out which sentence is used to show the personality of a person who is used to sleeping on his or her stomach？

A．He or she is careful not to offend others．

B．He or she doesn't want to stick to his or her opinion．

C．He or she can't be successful in any business．

D．He or she likes to bring others happiness．

Maybe you don't want to make friends with a person who sleeps curled up．Why？

A．He or she would rather be alone than communicate with you．

B．He or she is rarely ready to help you．

C．He or she prefers staying at home to going out．

D．He or she wouldn't like to get help from you．

It appears that the writer tends to think highly of the person who sleeps on one side because ______ ．

A．he or she always shows sympathy for people

B．he or she is confident，but not stubborn

C．he or she has more strengths than weaknesses

D. he or she often considers annoying people

查看答案和解析>>

科目：高中英語 來源：2010年山東省北校區(qū)高一第一次月考英語卷 題型：閱讀理解

Barbara and Barry Zucker – Pinchoff, both doctors from New York City, took their three daughters on a walking safari（旅行）last year in Tanzania. Barbara told about their experience in Kinbero, “It is the most remote（遙遠(yuǎn)的）place we have ever been to,” camping with a few other Americans, two Tanzanian guides, and several Hadza（哈扎人）who had time to sit and chat because they had just killed a giraffe.

About 400 members of the Eastern Hadza tribe（部落）live in Tanzania today, the only hunter-gatherers who remain in Africa. The Hadza hunt game, gather edible plants and honey, and move from place to place whenever the weather changers. Every two weeks or so, they move to a new campsite.

At the Pinchoffs’ campsite, three Hadza men stopped by to visit and ended up staying three days. One of the guides gave the men a cigarette. They took out the tobacco, put it in a pipe, and lit the pipe with fire they started.

It takes less than two hours for Hadza women to build a new camp. They make huts（茅屋）by bending branches into round structures about six feet high, and then covering them with long, golden grass. If the weather is very wet, the women may choose a dry cave to set up a camp. Some rock caves have been used over thousands of years and are decorated（裝飾）with ancient rock paintings. Whether they sleep in huts, caves or in the open, the Hadza cover themselves only with thin cloths and depend on fire to keep them warm.

The Hadza refuse to be “settled” into villages or to have the life of farmers. By 1979, almost all of them had returned to their old ways. They Hadza may be the only tribe in Africa the has never paid taxes.

1. The passage mainly tells up         .

A. one of the author’s travel experiences

B. the life of the Hadza tribe in Tanzania

C. Barbara’s walking safari in Tanzania

D. the efforts of the Hadza to keep their old ways

2.What does the underlined word “game” ( in Paragraph 2 ) probably refer to?

A. Part of a match.                                           B. Edible wild animals.        

C. An area of work.                                                 D. A children’s activity.

3.What do we know about the life of the Hadza?

A. They change their campsites regularly.           B. They live mainly on farming.

C. They keep warm using leaves at night.            D. It takes them a long time to set up a camp.

4.Where do the Hadza live in wet weather?

A. On the farm.            B. In huts.             C. In caves.           D. In the open.

 

查看答案和解析>>

科目：高中英語 來源：2012屆福建省高二下學(xué)期期中考試英語題 題型：閱讀理解

To get an extra 14 years of life, don't smoke, eat lots of fruits and vegetables, exercise regularly and drink alcohol in a proper amount．That is according to a study published this Monday in the Public Library of Science Medicine Journal．

After tracking more than 20,000 people aged 45 to 79 years in the United Kingdom from about 1993 to 2007, Kay-Tee Khaw of the University of Cambridge and his colleagues found that people who adopted these four healthy habits lived all average of 14 years longer than those who didn't．

“We've known for a long time that these behaviors are good things to do, but we've not seen this benefit before, ”said Susan Jebb, head of Nutrition and Health at Britain's Medical Research Council．“The benefit was also seen regardless of whether or not people were fat and what social class they came from．”

Study participants scored a point each for not smoking, regular physical activity, eating five servings of fruits and vegetables a day and moderate alcohol intake．

Public health experts said they hoped the study would inspire governments to introduce policies helping people to adopt these changes．But because the study only observed people rather than testing specific changes, it would be impossible to conclude that people who suddenly adopted these healthy behaviors would surely gain 14 years．

“We can't say that any person could gain 14 years by doing these things, ”said Dr．Tim Armstrong, a physical activity expert at the World Health Organization．“The 14 years is an average across the population of what's theoretically（理論上地）possible．”

“Most people know that things like a good diet matter and that smoking isn't good for them, ”Susan Jebb said．“We need to work on providing people with much more practical support to help them change．”

1.Which of the following DOESN'T belong to the four healthy habits?

A．Eat five servings of fruits and vegetables a day．

B．Do proper exercise in the morning every day．

C．Drinking alcohol in the proper amount every day．

D．Having a cigarette before going to bed every day．

2.We can learn from the passage that       ．

A．Susan Jebb did not take part in the study．

B．the study observed people as well as tested specific changes．

C．there's no need for people under 45 to adopt these good habits．

D．only those from first class can benefit from these healthy behaviors．

3.What can be inferred from the passage?

A．All the people are well aware of the harm of their bad habits．

B．People aged 45 to 70 have bad habits in the United Kingdom．

C．Governments should take measures to help people change their bad habits．

D．People have adopted the four healthy habits after knowing they're good．

4.

 

查看答案和解析>>

科目：高中英語 來源：2013屆江蘇省高一上學(xué)期期末考試英語試卷 題型：完型填空

It’s difficult for doctors to help a person with a hurt brain.  36  enough blood, the brain can live only three to five minutes. Usually doctors can’t fix the hurt  37  such a short time.

Dr Robert White thinks he knows a  38  of help. He thinks doctors should make the hurt brain  39  to live for 30 minutes without blood. This gives the doctor  40  time to do something for the brain. Dr White experimented his  41  on fifteen monkeys.  42  he taught them to do different jobs. Then he operated on them. He made the monkeys’ blood go  43  a machine. When the brains’  44  was 10℃, he stopped the blood to the brain. After 30 minutes, he turned the blood back on. He  45  the blood again. After their operations, the monkeys were almost  46  before. They were healthy and busy. Each one could still do the job the doctor  47  them.

Dr White’s idea works well on monkeys. He thinks it will work on  48 . He think it will help with heart problems. A person  49  die when his heart stops; doctors can  50  it again. The problem comes: when the brain is without blood for about 5 minutes, it  51 . If doctors start the heart again after 5 minutes, the person has  52  body but a dead brain. Maybe in the future, doctors will  53  Dr White’s idea. When the person’s heart stops the doctor will  54  cool the brain. They will have 30 minutes to start the heart again. Maybe there will be no  55  the brain.

1.

A．Don’t have

B．Without

C．Having not

D．Only with

 

2.

A．for

B．a(chǎn)fter

C．in

D．since

 

3.

A．way

B．brain

C．doctor

D．man

 

4.

A．too cool

B．enough cool

C．cool enough

D．that cool

 

5.

A．a(chǎn) longer

B．enough

C．a(chǎn) shorter

D．a(chǎn)nother

 

6.

A．medicine

B．manners

C．idea

D．brain

 

7.

A．Besides

B．Instead

C．However

D．First

 

8.

A．to

B．a(chǎn)cross

C．through

D．onto

 

9.

A．heat

B．temperature

C．coolness

D．feeling

 

10.

A．cooled

B．operated

C．warmed

D．stopped

 

11.

A．the same as

B．different from

C．used to

D．cleverer than

 

12.

A．was taught

B．was teaching

C．was to teach

D．had taught

 

13.

A．other people

B．human beings

C．other things

D．more people

 

14.

A．doesn’t have to

B．needn’t

C．will be able to

D．is afraid to

 

15.

A．start

B．take

C．make

D．begin

 

16.

A．loses

B．goes

C．kills

D．dies

 

17.

A．no

B．a(chǎn) dead

C．a(chǎn) living

D．a(chǎn) lively

 

18.

A．get

B．a(chǎn)ccept

C．keep

D．try

 

19.

A．soon

B．quickly

C．slowly

D．rapid

 

20.

A．use for

B．wrong with

C．value to

D．problem with

 

查看答案和解析>>

同步練習(xí)冊答案