58．If there is too much rain, people may ．A．have no food B．be too humidC．have no money D．have more lakes 【查看更多】

 

題目列表(包括答案和解析)

Green Plants and Deserts

　　Scientists are trying to make the deserts into good land again. They want to bring water to the deserts, so people can live and grow crops. They are learning a lot about the deserts. But more and more land of the earth is becoming deserts all the time. Scientists may not be able to change the deserts in a short time.

　　Why is more and more land becoming deserts? Scientists think it is the people who make more and more deserts. People do bad things to the earth.

　　There is little rain in some places of the world. But these places don't become deserts because some green plants are growing there. Green plants are important to dry places. Plants prevent the hot sun from making the earth even drier. Plants don't let the wind blow the dirt away. When rain falls, the plants hold the water. Without the plants, the land will become deserts much more easily.

(1)There is _______ in the deserts.

[　　]

A．little sunlight

B．little rain

C．too many plants

D．so strong wind

(2)More and more land is becoming deserts because _______.

[　　]

A．people have done bad things to it

B．it has rained too much

C．there are no people living there

D．there is not enough sunshine

(3)Scientists think that _______, crops can be planted there.

[　　]

A．if there is enough water in the deserts

B．as soon as farmers go to the deserts

C．if there is a big city near the deserts

D．if the weather is good

(4)The green plants can _________.

[　　]

A．bring water into deserts

B．hold water and stop the land becoming too dry

C．make land into deserts

D．provide water for deserts

(5)If there are no plants in a place, _________.

[　　]

A．there is no rain there

B．the land will become deserts soon

C．people won't have enough food to eat

D．the weather will be bad

查看答案和解析>>

完形填空

The weather is different in different parts of the world．In some places it is 　　1　　, and in others it is wet．If the weather is too dry, the 　　2　　 will not be good for animals or plants．In wet weather there may be too much rain．The rivers may go over their sides．The water may 　　3　　 the bridges away．If there is too much rain, and rivers go over their sides, a lot of people may not have 　　4　　 food．If there is very dry weather for a long time, the river beds may be dry．If they are, there will be 　　5　　 water 　　6　　 fish for people．In some other parts of the world the weather may be very 　　7　　．There be snow．If there is a lot of snow, the land and all the trees and buildings will be white．In the 　　8　　 the days are very short and the nights are long．On cold winter nights, when there are no clouds and winds, the sky is very clear．On those nights the moon and stars are very beautiful．People may 　　9　　 their coats and go for long walks．When they come back to their 　　10　　, they may be happy to have hot tea and cake by their stoves．

(1)
[　　]

A．

cloudy

B．

dry

C．

snowy

D．

rainy

(2)
[　　]

A．

river

B．

lake

C．

land

D．

sea

(3)
[　　]

A．

take

B．

bring

C．

break

D．

flow

(4)
[　　]

A．

some

B．

delicious

C．

enough

D．

a lot

(5)
[　　]

A．

neither

B．

either

C．

both

D．

not only

(6)
[　　]

A．

or

B．

nor

C．

and

D．

but

(7)
[　　]

A．

warm

B．

dry

C．

hot

D．

cold

(8)
[　　]

A．

spring

B．

summer

C．

autumn

D．

winter

(9)
[　　]

A．

put on

B．

take off

C．

put away

D．

dress

(10)
[　　]

A．

offices

B．

gardens

C．

houses

D．

schools

查看答案和解析>>

完形填空。

　　The weather is different in different parts of the world．In some places it is 　　1　　,and in others it is humid．If the weather is too dry,the land will not be 　　2　　 for animals or plants(植物)．In humid weather there may be too much 　　3　　．The rivers may go over their sides．The 　　4　　 may take the bridge away．If the rivers go over their sides,a lot of people may not have enough food．If there is very dry weather for a long 　　5　　,the river beds may be dry．In some other parts of the world the weather may be very cold．There may be 　　6　　．When it snows,the trees,the buildings and everything look 　　7　　．In winter the days are short and the nights are long．　　8　　 cold weather nights,when there are no clouds or winds,the 　　9　　 is very clear(晴朗的)．And the moon and the stars are very beautiful．People may 　　10　　 their coats and go out for long walks．When they come back to their houses,they may be happy to have hot coffee and cakes by the fire(火)．

(1)
[　　]

A．

drier

B．

dry

C．

cold

D．

hot

(2)
[　　]

A．

bad

B．

worse

C．

well

D．

good

(3)
[　　]

A．

rain

B．

snow

C．

wind

D．

cloud

(4)
[　　]

A．

river

B．

rain

C．

water

D．

wind

(5)
[　　]

A．

time

B．

way

C．

river

D．

month

(6)
[　　]

A．

rain

B．

snow

C．

blow

D．

shine

(7)
[　　]

A．

blue

B．

green

C．

yellow

D．

white

(8)
[　　]

A．

On

B．

At

C．

In

D．

After

(9)
[　　]

A．

river

B．

land

C．

sky

D．

earth

(10)
[　　]

A．

wear

B．

put on

C．

in

D．

dress

查看答案和解析>>


同步練習(xí)冊(cè)答案