1. A normal person’s heart beats        (42,000,000) times every year.

練習(xí)冊系列答案
相關(guān)習(xí)題

科目:初中英語 來源: 題型:

根據(jù)下面的對話情景,在每個空白處填上一個適當(dāng)?shù)木渥,使對話的意思連貫、完整。

A: Hey,Bruce. Long time no see!1.       

B : I’ve been to China. Look,here are the photos. How wonderful these Chinese buildings are!

A: You are right. 2.       

B : Just a little. But I’m going to learn more Chinese language. It’s useful to learn about Chinese

culture. 3.       

A: I helped the disabled as a volunteer.

B : Really? I’d like to be a volunteer,too. Could I go there with you?

A: Sure. 4.__

B : Let’s meet at 8 o’clock tomorrow.

A: Goodbye.

B: 5.       

查看答案和解析>>

科目:初中英語 來源: 題型:

(   ) 1. —        is the population of USA?

—It’s 309 million.

A. How many     B. How much

C. What         D. How

查看答案和解析>>

科目:初中英語 來源: 題型:

 詞語運用。 

increase,while,child,nearby,hard,but (also), spend,often,small,develop,take,grow

In the past,when more Americans lived on farms,a family usually had many 1      Parents and their children 2      lived with grandparents. And uncles and aunts lived 3     ,too. But when industry (工業(yè)) became more important than agriculture (農(nóng)業(yè))in America,families became 4      . Industry needs a lot of workers. They must be ready to move off the land and to move again whenever necessary. That is to say,with the development of science,families have changed. Large families can not move from one place to another 5      small families can. Today,there are more and more small families. They may even keep no child because taking care of a child is a 6      work. It 7      parents not only money and time,8       much energy (精力).

That’s why the population of most developed countries 9      more and more slowly. In this way,the country can 10      faster than before and young children can have more chance to get education and find suitable jobs.

1.        2.        3.        4.        5.       

6.        7.        8.        9.        10.       

查看答案和解析>>

科目:初中英語 來源: 題型:

8. I       that my father will be back in half an hour.

查看答案和解析>>

科目:初中英語 來源: 題型:

(   ) 15. I was supposed      home earlier,but I was late.

A. get to    B. to get to C. to get   D.get

查看答案和解析>>

科目:初中英語 來源: 題型:

1.人口真多!

What__  population!

查看答案和解析>>

科目:初中英語 來源: 題型:

1 . About one        (three) of the students in our school are from the countryside.

查看答案和解析>>

科目:初中英語 來源: 題型:

  2. We should___(采取措施) control population.

查看答案和解析>>

同步練習(xí)冊答案