Here in Siberia（西伯利亚），the winter is always very long and it's very，very cold! It starts to snow in November and the snow won’t leave until May．The temperature is usually about-25℃，but it's sometimes much colder．When it's-35℃, children can’t go to school，but adults still go to work! We wear a lot of warm clothes，socks and boots（靴子），sweaters and fur coats．All the houses have heating（暖气），so it is never cold inside．In winter, we close all the windows to stop the wind from getting in and we don’t open them again until spring．

In spring and summer it rains a lot, and we don’t open see the sun．In summer it’s often about 25℃，but the weather’s very changeable（可变的；易变的）．One day it's 25℃, and the next day it’s 10℃．People say that the weather was even colder in the past．

1．How long is Siberia’s snowy time?

2．What are used in Siberia to keep the people and houses warm?

3．Do children go to school when it’s-35℃in winter?

4．What’s the weather like in spring?

5．How does the weather in Siberia often change（变化）in summer?

①Forests help to keep water from running away, so drought does not often happen. The trees in the forests can keep raindrops from hitting the soil directly, and the dead leaves on the ground can also keep the water from running away.②

Chinese people don’t want to see more floods and droughts. We have built the “ Great Green Wall” of trees across the northern part of our country.③ Thanks to the “ Great Green Wall”, we can prevent the wind from blowing the earth away. It will stop the sand from moving towards the rich farmland. That’s why more “ Great Green Walls” are needed. Trees must be planted all over the world.④

根据短文内容，从题中所给的A、B、C、D四个选项中，选择最佳答案。（10分）

1. “Great Green Wall will make the world better.” This sentence should be put in      .

A．①

B．②

C．③

D．④

2.       can help to keep water from running away.

A．Rain

B．Forests

C．Sand

D．Land

3. The reason of building “ Great Green Wall”is        .

A．to make the city beautiful

B．to move the sand

C．to stop the sand from moving towards the rich farmland.

D．to stop the rain from hitting the soil directly.

4. We have built the “ Great Green Wall” of trees        of China.

A．in the east

B．in the west

C．in the south

D．in the north.

5.From the passage, we can know which is wrong.

A．We must plant more trees.

B．We have to protect our environment.

C．“Great Green Wall” project is very beneficial to us.

D．It is not necessary that trees must be planted all over the world.

 

—Must we keep the window open all the time? 

    A. No, you mustn’t  B. No, you can’t.   C. No, you don’t have to.

 

①Forests help to keep water from running away, so drought does not often happen. The trees in the forests can keep raindrops from hitting the soil directly, and the dead leaves on the ground can also keep the water from running away.②
Chinese people don’t want to see more floods and droughts. We have built the “ Great Green Wall” of trees across the northern part of our country.③ Thanks to the “ Great Green Wall”, we can prevent the wind from blowing the earth away. It will stop the sand from moving towards the rich farmland. That’s why more “ Great Green Walls” are needed. Trees must be planted all over the world.④
根据短文内容，从题中所给的A、B、C、D四个选项中，选择最佳答案。（10分）
【小题1】 “Great Green Wall will make the world better.” This sentence should be put in      .

A．①

B．②

C．③

D．④

【小题2】       can help to keep water from running away.

A．Rain

B．Forests

C．Sand

D．Land

【小题3】 The reason of building “ Great Green Wall”is        .

A．to make the city beautiful

B．to move the sand

C．to stop the sand from moving towards the rich farmland.

D．to stop the rain from hitting the soil directly.

【小题4】 We have built the “ Great Green Wall” of trees        of China.

A．in the east

B．in the west

C．in the south

D．in the north.

【小题5】From the passage, we can know which is wrong.

A．We must plant more trees.

B．We have to protect our environment.

C．“Great Green Wall” project is very beneficial to us.

D．It is not necessary that trees must be planted all over the world.