2. be，twice

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：初中英語 來源： 題型：

(   ) 9. ―How many English words       you      so far?

—About 1 ，200，I think.

A. did;learn B. have;learned

C. do;learn D. are;learned

查看答案和解析>>

科目：初中英語 來源： 題型：

Is the world too crowded? Well, that's a hard question to answer. It's all a matter of perspective(視角).In Montana，you might drive for a mile in any direction and not see another human being. In Macao, about 20,000 people live in every square kilometer！

What is true is that the world's population doesn't stay the same. It has been increasing at a very fast rate. That's in part because in each generation(代)there are more people who then have children than those in the last generation. 

Five hundred years ago,the population of the world was about 460 million. In 1900, the world's population was under2 billion. Right now it is doubling every 40 years. That means, if this rate of growth continues，when you are a parent, there will be twice as many people on earth as there are now. Wow！Now there are already a lot of people. And soon the world's population will probably reach 7 billion. Some people worry about that！But there is a lot of disagreement about just how many people on earth equals(相當(dāng)于)too many people. But everyone agrees that the more people there are， the more resources the world needs to feed them. So there is a need to think carefully about how we live and use the earth's resources.

(   ) 1. From the first paragraph we can know that________ •

A.  Montana is too crowded

B.  Macao is too crowded

C.  the world is too crowded

D.  the world is not too crowded

(   ) 2. According to the passage,the population is increasing fast partly because      

A.  people live longer than before

B.  there are fewer wars than before

C.  medicine is developing faster than before

D. more people have children than before
(   ) 3. What was the world's population about 100 years ago?

A.  About 460 million.

B.   Less than 2 billion.

C.   About 40 billion.

D.  More than 7 billion.

(   ) 4. The writer thinks that with the population increasing, we should      

A.  find more resources

B.   use more resources

C.   think about our ways of living

D.  move to other places

(   ) 5. From the passage we can learn that the writer      

A.  thinks the world already has too many people

B.   thinks the world can feed no more than 7 billion people

C.   is not sure when the world's population will reach 7 billion

D.  is not sure how many people will be too many

查看答案和解析>>

科目：初中英語 來源： 題型：

 從方框中選出合適的短語并用其適當(dāng)形式填空。

provide...with,on purpose, be known as take measures，carry out

1. After the flood，the government       the people       food and fresh water.

2. Her father came to Guangzhou     to meet her last week.

3. We      the work well with the help of them.

4. China      __ to control the increasing population in recent years.

5. Chongqing      the " Mountain City" in China.

查看答案和解析>>

科目：初中英語 來源： 題型：

( ) 7.—Mike, what do you think of Harry Potter II? 

      ―Oh, it's a wonderful film       I have ever seen.

A. what    B. which

C. who    D. it

查看答案和解析>>

科目：初中英語 來源： 題型：

4. Some energy sources will never       ____  (用光).so we call them renewable sources.

查看答案和解析>>

科目：初中英語 來源： 題型：

7. I think not       understands the film because it is in English.

查看答案和解析>>

科目：初中英語 來源： 題型：

2. I      (幾乎不)ever go to concerts.

查看答案和解析>>

科目：初中英語 來源： 題型：

4. China has the largest p      in the world. It's about 1. 3 billion.

查看答案和解析>>

同步練習(xí)冊答案