7．We often talk about the weather．Here are some passages about the weather．Let's read them together．
Passage 1：
Is it hot or cold，cool or warm？It always goes up and down．When the sun comes up，it warms the air and the temperature will go up．When nights come，the air will get cooler and the temperature（温度）will fall．
Passage 2：
We can't see it，but we can feel it．It can move the air．When it comes，we can see the branches（树枝） of trees are moving．Do you like flying kites？It can carry your kite high in the sky．It can also blow your hat off．
Passage 3：
The rain is falling all around．It falls on fields and trees．It rains on the umbrellas here and on the ships at sea．
Passage 4：
We often see it in winter．It looks white and many people like it a lot．When it comes，the ground will put on her white clothes．And children are specially happy then，because they can make snowmen．
41．The underlined word"warms"in Passage 1means"B"in Chinese．
A．使…变冷
B．使…变暖
C．使…下降
D．使…上升
42．The underlined word"it"in Passage 2refers to（指代）C．
A．the air
B．the sun
C．the wind
D．the weather
43．Which one may be the best title for Passage 3？D
A．Taking your umbrella
B．Ships at sea
C．Falling on fields and trees
D．The rain
44．Passage 4mainly（主要地） talks aboutA．
A．snow
B．rain
C．wind
D．temperature
45．Why do children feel happy when it snows？B
A．Because they can stay at home．
B．Because they can make snowmen．
C．Because they don't need to go to bed．
D．Because they feel very cold．
