网址：http://m.1010jiajiao.com/timu_id_2370317[举报]
What has happened to the forests of the U.S.A. in the last 350 years? In 1620. about half the U.S.A. was covered by forests. In 1850, about a third was covered by forests. Today the forests have almost gone. But too many trees are still being cut down. There is a lot of sand left. China doesn't want to follow the U. S. A.'s example. So China has built a new Great Wall across the northern part of China, This time, it is a "Great Green Wall" of trees, millions of trees. The Great Green Wall is 7,000 kilometers long, and between 400 and 1,700 kilometers wide. The Green Wall will stop the wind from blowing the earth away. It will stop the sand from moving towards the rich farmland in the south. But more "Great Green Walls" are still needed, and not only in China. They must be built all over the world.
(1)How much of the U.S.A. was covered by forests 230 years after 1620?
[
]A
．Three quarters of the U. S. A.B
．Half of the U.S.A.C
．One third of the U.S.A.D
．One fourth of the U.S.A.(2)What is the Great Green Wall?
[
]A
．An ancient, long wall with towers.B
．Millions of trees.C
．A large area of trees.D
．Hundreds of trees.(3)How can we stop the wind from blowing the earth away?
[
]A
．Build more walls.B
．Remove the sand.C
．Plant more trees.D
．Reduce the wind. 查看习题详情和答案>>— It's 920 dollars.
— Oh, it's too e_______.
2. The doctor told the patient how to keep h_______.
3. I like ball games very much, but my f_______ sport is playing basketball.
4. It's snowing h_______. You must drive carefully.
5. Eating more v_______ and fruit is good for your body.
6. Do you know the teacher with thick g______? She reads too much everyday.
7. — Who's teaching skating?
— Nobody. We're learning it o______.
8. Is there anything to drink? I'm very t_______.
9. The boy wrote so c _______ that he didn't notice it begin to rain.
10. M_______: spoken or written piece of information passed from one person to another.
选择正确答语
|
( ) 1. How much is the fish? |
A ．I' al a doctor. |
|
( ) 2. How much meat do you want? |
B ．I am from England. |
|
( ) 3. How do you like China? |
C ．Half a kilo, please. |
|
( ) 4. What do you do? |
D ．I can't get down. |
|
( ) 5. What' s wrong, Jim? |
E ．Yes, it' s very kind of you. |
|
( ) 6. Please give me some water. |
F ．In the factory. |
|
( ) 7. Where are you from? |
G ．It's great. |
|
( ) 8. What time is it? |
H ．Here you are. |
|
( ) 9. Where do you have lunch? |
I ．It' s twelve. |
|
( ) 10. Can I help you? |
J ．It's five yuan a kilo. |
?
ball.