In l620．about half of the USA was covered by forests．Today the forests have almost gone．A lot of good land has gone with them，leaving only sand．China doesn’t want to copy the USA’s example．We’re planting more and more trees．We’ve built the Great Green Wall of trees across northern part of our country．The Great Green Wall is 7，000 kilometers long，and between 400 and l，700 kilometers wide．It will stop the wind from blowing the earth away．It will stop the sand from moving towards the rich farmland in the south．More Great Green Walls are needed．Trees must be grown all over the world．Great Green Walls will make the world better．

1. In l620 about the USA was covered by forests．

    A．a third of      B．half of          C．two thirds of   D．a fourth of

2．A lot of good land has gone with _________．

    A．sand      B．water    C．wind               D．forests

3．The Great Green Wall in China is _________ long．

    A．7．000 kilometers              B．1，700 kilometers

    C．7．000 meters                      D．400 kilometers

4．Trees must be grown in________．

    A．China                                B．the USA

    C．some countries                     D．every part of the world

5．________will make the world better．

    A．The Great Wall                   B．Tall buildings

    C．Great Green Walls                 D．Flowers and grass

In 1620, about half the USA was covered by forests. Today the forests have almost gone. A lot of good land has gone with them, leaving only sand. China doesn't want to copy the USA's example. We're planting more and more trees. We've built the " Great Green Wall" of trees across northern part of our country. The Great Green Wall is 7,000 kilometres long, and between 400 and 1,700 kilometres wide. It will stop the wind from blowing the earth away. It will stop the sand from moving towards the rich farmland in the south. More "Great Green Walls" are needed. Trees must be grown all over the world. Great Green Walls will make the world better.
根据短文内容，选择正确答案。
【小题1】The Great Green Wall in China is ______.

A．7,000 kilometers long	B．1,700 kilometers long
C．7,000 meters long	D．400 kilometers long

【小题2】Trees must be grown in ______.

A．China

B．the USA

C．some countries

D．every part of the world

【小题3】Which of the following statements is not true?

A．The Great Green Wall will stop wind from blowing the earth away.

B．The Great Green Wall will make our life better.

C．We don’t need to plant more trees.

D．The Great Green Wall will stop the sand moving towards the rich farmland.

In 1620, about half the USA was covered by forests. Today the forests have almost gone. A lot of good land has gone with them, leaving only sand. China doesn’t want to copy the USA’s example. We’re planting more and more trees. We’ve built the " Great Green Wall" of trees across northern part of our country. The Great Green Wall is 7,000 kilometres long, and between 400 and 1,700 kilometres wide. It will stop the wind from blowing the earth away. It will stop the sand from moving towards the rich farmland in the south. More "Great Green Walls" are needed. Trees must be grown all over the world. Great Green Walls will make the world better.
根据短文内容，选择正确答案。
【小题1】The Great Green Wall in China is ______.

A．7,000 kilometers long	B．1,700 kilometers long
C．7,000 meters long	D．400 kilometers long

【小题2】Trees must be grown in ______.

A．China

B．the USA

C．some countries

D．every part of the world

【小题3】Which of the following statements is not true?

A．The Great Green Wall will stop wind from blowing the earth away.

B．The Great Green Wall will make our life better.

C．We don’t need to plant more trees.

D．The Great Green Wall will stop the sand moving towards the rich farmland.

In 1620,about half the USA was covered by forests .Today the forests have almost gone .A lot of good land has gone with them ,leaving only sand .China doesn’t want to copy the USA’s example.We’re planting more and more tress .We’ve built the “Great Green Wall ”of tress across northern pat of our country .The “Great Green Wall”is 7,000 kilometers long ,and between 400 and 1,700 kilometers wide .It will stop the wind from blowing the earth away .It will stop the sand from moving towards the rich farmland in the south .More “Great Green Wall ”are needed .Trees must be grown all over the world. “Great Green Wall ”will make the world better .

根据短文内容，选择正确答案。

1.In 1620 ,about_____ the USA was covered by forests

A．a third

B．half

C．to thirds

D．a fourth

2. A lot of good land has gone with _____.

A．sand

B．water

C．wind

D．forests

3. The “Great Green Wall”In China is _____long

A．7,000 kilometers	B．1,700 kilometers
C．7,000 meters	D．400 kilometers

4. Trees must be grown in _____.

A．China	B．the USA
C．some countries	D．every part of the world

5._____ will make the world better .

A．the Great Wall	B．Tall buildings
C．Great Green Wall	D．Flowers and glass