问题 名词解释

鉴相器

答案

参考答案:

比较参考频率与反馈频率两者间的差别,检测出两者间的相位与频率的误差量。

阅读理解

The Post Hotel in Austria is clean but the price is high. If you go to a fast food restaurant, you will probably see a lot of teenagers. Today, many teenagers are overweight, and some of this is because of their bad eating habits. Most teenagers love food with a lot of fat, oil, salt, and sugar. People often call this kind of food “junk food".

But bad eating habits go beyond fast food. We find many teenagers eat unhealthily. Some don't have breakfast before they go to school。.During the day, some don't have a proper meal for lunch. In a recent survey at one school, scientists found that over two thirds of the students didn't follow a healthy diet. They didn't like vegetables, and many of them didn't like to eat fruits. They preferred(更喜欢) to eat food with a lot of salt, sugar, or fat.

Parents today also worry about their children's diet. Some doctors give the following advice:

★ Teenagers shouldn't eat too much junk food.

★ Teenagers shouldn't eat food with too much salt. Salt can cause high blood pressure(高血压)in the future.

★ Teenagers should eat food with less fat, oil, and sugar.

★ Teenagers need to eat some fruits and vegetables every day. Fruits and vegetables are rich in vitamins(维生素)and have little fat.

★ Teenagers need to drink more milk. Milk will help their bones grow.

★ Teenagers need to eat breakfast every day. This is good for their body and mind.

小题1:“Junk food” contains a lot of  __________.

A.milk and sugar

B.fruits and sugar

C.vegetables and salt

D.fat, oil, salt and sugar小题2:In a recent survey at one school, scientists found many students liked    ____________.

A.vegetables

B.unhealthy food

C.fruits

D.healthy food小题3: What does the underlined word “beyond” mean in Chinese in this passage?       

A.超出

B.不如

C.相等

D.在后面小题4: In this passage, doctors think that teenagers should eat more ______.

A.food with no vitamins

B.fat and sugar

C.vegetables and fruits

D.salt and oil小题5:The best title for this passage is  _________  .

A.Bad Habits

B.Junk Food

C.Unhealthy Food

D.Advice on Healthy Eating

单项选择题 A1/A2型题