单选题A weather forecast states that the wind will commence backing. In the Northern Hemisphere，this would indicate that it will（）.A shift in a clockwise mannerB shift in a counterclockwise mannerC continue blowing from the same directionD decrease in veloci

—_______. —About 25℃.

A.The temperature may be higher.

B.How is the weather today?

C.What’s the temperature today?

D.What is the weather forecast say?

A.Nice and cool

B.The weather forecast says it’s fine

C.About 18 degrees

D. Sure, it’s sunny

Now satellites are 36 to forecast（预报）the weather. They are in space, and they can 37 any part of the world. The satellites take pictures of the atmosphere（大气），38 this is where the weather forms（形成）. They send these 39 to the weather stations. So meteorologists（气象学家）can see the weather of any part of the world. From the pictures, the scientists can often say 40 the weather will change.

Today, nearly five hundred weather stations in sixty countries receive satellite pictures. When they receive new pictures, the meteorologists compare them with earlier 41 . Perhaps they may find that the clouds have changed during the last few hours. This may mean that the 42 on the ground may soon change, too. In their next weather forecast, the meteorologists can say this.

So the weather satellites are a great 43 to the meteorologists. 44 __satellites were invented, the scientists could forecast the weather for about 24 or 48 hours. Now they can make good forecasts for three or five days. Soon, perhaps, they may 45 forecast the weather for a week or more ahead（提前）.

36.________________

A. help B. to help C. helped D. helping

When recording the wind direction in the weather log，you would report the ______．

A.direction the wind is blowing toward

B.direction the wind is blowing from

C.duration of the maximum gust of wind

D.wind chill factor

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

A．the weather satellites can do it easily

B．clouds form. there

C．the weather forms there

D．the pictures can forecast the weather

A、listens

B、is listening

C、has listened

D、has been listening

根据下列材料请回答 31～35 题：

A

Now satellites 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 form．They send these pictures to the weather stations．So meteorologists(气象学家)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 them with 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，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 0r 48 hours．Now they can make good forecasts for three or five days．Soon，perhaps，they may be able to forecast the weather for a week or more ahead．

第 31 题 Satellites travel______．

A．in space

B．in the atmosphere

C．above the ground

D．above space

This forecast states that winds will______.

A. slow down at night

B. be from south to east

C. bring heavy rain on Sunday

D. be from different directions

Maybe we’ll soon be able to forecast the weather fo______．

A．one day

B．two days

C．five days

D．seven days or even longer

A weather forecast states that the wind will commence backing. In the Northern Hemisphere this would indicate that it will ______.

A.shift in a clockwise manner

B.shift in a counterclockwise manner

C.continue blowing from the same direction

D.decrease in velocity