Now satellites(卫星)are helping to forecast the weather. They are in space and they can reach any part of the world. The satellites take pictures of the atmosphere(大气), because this is where the weather forms(形成). They send these pictures to the weather station. So meteorologists(气象专家)can see the weather of any part of the world. From the pictures, the scientists can often say how the weather will change.

Today, nearly five hundred weather stations in sixty countries receive satellite pictures. When they receive new pictures, the meteorologists compare(比较)them with earlier ones. Perhaps they may find that the clouds have changed during the last few hours .This may mean the weather on the ground may soon change, too. In their next weather forecast, the meteorologists can say this.

So the weather satellites are a great help to the meteorologists. Before satellites were invented, the scientists could forecast the weather for about 24 or 48 hours. Now they can make good forecasts for 3 or 5 days. Soon, perhaps , they may forecast the weather for a week or more ahead(提前)

1.Satellites travel__________.

2.Why do we use the weather satellites to take pictures of the atmosphere? Because___________.

3.Meteorologists forecast the weather________.

4.Maybe we’ll soon be able to forecast the weather for _______.

5.The main idea of this passage is that satellite is now used in______.

阅读理解

　　Now satellites are helping to forecast (预报) the weather. They are in space, and they can reach any part of the world. The satellites take pictures of the atmosphere (大气), because this is where the weather forms (形成). They send these pictures to the weather station. So the scientists there can see the weather of any part of the world and tell how the weather will change.

　　Today, nearly five hundred weather stations in sixty countries can receive satellite pictures. When they receive the new pictures, they compare (比较) them with the earlier ones. Perhaps they may find, that the clouds have changed during the last few hours. This may mean that the weather on the ground may soon change, too. In their next weather forecast, they can tell people about it.

　　So the weather satellites are of a great help to the scientists at the station. In the past they could forecast the weather for about 24 or 48 hours earlier. Now they can make good forecast for 3 or 5 days. Soon, perhaps, they may be able to forecast the weather for a week or more ahead.

1．The weather forms ________.

[　　]

A．in any part of the world

B．in the atmosphere

C．in space

D．on the ground

2．Changing clouds in the atmosphere means ________.

[　　]

A．it is a rainy day

B．it is a windy day

C．the weather will change

D．it is a sunny day

3．Without satellites, scientists could forecast the weather for ________ ahead.

[　　]

A．a week or more

B．one or two days

C．3 or 5 days

D．two weeks

4．The main idea of this passage is that satellites are now used in ________.

[　　]

A．taking pictures of the atmosphere

B．many ways

C．receiving pictures of the atmosphere

D．weather forecasting

本文采取书信形式，一位爱担忧的老祖父给编辑部写了一封信，内容告诫年轻女孩儿，不要在街上乱搭不相识人的车游玩，这样做即危险，也容易造成交通事故，很有教育意义．

　　Dear editor(编辑),

　　Can't your newspaper do something about the custom(习惯) of hitchhiking?

　　A short time ago, on a car travel I counted at least 50 people standing beside the road, asking for rides. Many of them were young women.

　　Don't they understand how dangerous it is to get into the car driven by a stranger? How much do they know about the driver? Is he a good driver or not? Nothing!

　　Many of these young hitchhikers may come from good families. Don't their parents teach them anything about the world? I always taught my children not to talk to strangers. I never let them take rides from people they didn't know.

　　Isn't there enough crime(犯罪) today without asking for trouble by hitchhiking? On the other hand, hitchhiking may bring some traffic trouble.

　　Don't you think what I said is true?

A Worried Grandfather

1．The word “hitchhiking” means ________.

[　　]

A．waiting for a bus at the bus stop

B．driving in a dangerous way

C．going on a long way by getting free rides in other people's car

D．asking a stranger the ways in a car

2．The Worried Grandfather ________.

[　　]

A．doesn't like young women to drive cars

B．thinks it is dangerous for a young woman to get into a stranger's car

C．likes drivers to be careful and strict in their work

D．never lets his children get into other people's car

3．The Worried Grandfather ________.

[　　]

A．was hit by a car when he was standing by the road

B．is a good driver and often gives free rides to strangers

C．is in trouble now and he wants to get some help from the newspaper

D．has seen much of the world and he is very careful

4．The Worried Grandfather wrote the letter to tell ________.

[　　]

A．the newspaper to let its readers know the danger of hitchhiking

B．young women never to go on a long travel alone

C．young people to listen to their parents at home

D．his children not to talk to strangers on the road

5．What do you think a good editor is going to do after he receives the letter?

[　　]

A．He will either return the letter to the old man or give it to the police station.

B．He will write back to the Worried Grandfather and tell him not to hitchhike any more.

C．He will write or ask someone to write something about the danger of hitchhiking in the newspaper.

D．He will hold a meeting to tell the drivers to make the traffic trouble less.

　　Now satellites are helping to forecast(预报) the weather. They are in space, and they can reach any part of the world. The satellites take pictures of the atmosphere(大气), because this is where the weather forms(形成). They send these pictures to the weather station. So the scientists there can see the weather of any part of the world and tell how the weather will change.

　　Today, nearly five hundred weather stations in sixty countries can receive satellite pictures. When they receive the new pictures. When they receive the new pictures,they compare(比较) them with the earlier ones. Perhaps they may find that the clouds have changed during the last few hours. This may mean that the weather on the ground may soon change, too. In their next weather forecast, they can tell people about it.

　　So the weather satellites are of a great help to the scientists at the station. In the past they could forecast the weather for about 24 or 48 hours earlier. Now they can make good forecasts for 3 or 5 days. Soon, perhaps, they may be able to forecast the weather for a week or more ahead.

1．The weather forms ________.

[　　]

A．in any part of the world

B．in the atmosphere

C．in space

D．on the ground

2．Changing clouds in the atmosphere means ________.

[　　]

A．a rainy day

B．a windy day

C．that the weather will change

D．a sunny day

3．Without satellites, scientists could forecast the weather for ________ ahead.

[　　]

4．The main(主要的) idea of this passage is that satellites are now used in ________.

[　　]

A．taking pictures of the atmosphere

B．many ways

C．receiving pictures of the atmosphere

D．weather forecasting