Electricity through thin wires.4. The toy car gets power from .5. Trees can produce to protect themselves from insects. 题目和参考答案——青夏教育精英家教网—

题目内容

3. Electricity ( flow) through thin wires.

4. The toy car gets power from (battery) .

5. Trees can produce ( chemistry ) to protect themselves from insects.

3. flows 4. batteries 5. chemicals

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Long ago,most of our earth was covered with blocks (块) of ice. These ice blocks were as tall as high buildings in modern cities. Most of the ice was in the northern part of the world. Then the ice blocks started to move south. Cold and rain came with the ice. Animals had to move. At last,the ice began to melt ( 融化) .After half a million years,most of it melted. More than half of the earth became covered with water. The climate became much warmer. Things began to grow. The earth began to look the way in which it looks today.

1. Long ago,our earth was very .

A. warm B. hot C. cool D. cold

2. What did animals try to do when the ice blocks moved south?

A. They tried to stop them moving.

B. They tried to melt them.

C. They tried to move.

D. They tried to stay ahead of them.

3. The melting ice may help to form .

A. mountains and valleys

B. the sun,the moon and the earth

C. cities and countries

D. seas,lakes and rivers

4. The underlined word “climate’means “ ”.

A. the freezing ice

B. the weather of the year

C. the moving of the ice blocks

D. a plant or an animal

5. Which of these things may happen because the Ice Age en- ded?

a. Forests grew.

b. Food became harder to find.

c. Fishing became easier.

d. The temperature dropped.

A. a；b B. b；d C. c；d D. a；c

11. 回来

12. 街道下面

4. 电池里面的化学物质产生电。

The produce electricity.

5. ( 2015 江西中考) There are lots of that students have to follow in school.

A. exercises B. problems

C. skills D. rules

Radio,telephone and television are widely used (被广泛使用) in the world. When you 1 the radio,you can listen to it. But when you use telephone,you can not only listen to others 2 you can chat with them.However,you can’t see them at all. Television is 3 than both of them.You can watch TV and listen to it, 4 you can’t take part in what you see.

Today,some people are using a type of telephone 5 videophone (可视电话) .There are two persons.They are talking but they cannot see each other 6 it.

videophones can be of great use when you have something 7 the person who you are calling. Some day you may be able to call up a 8 and ask to read a book right through your videophone. You may be able to do the shopping through it,too. Perhaps 9 the near future,videophones will come into wider use in our 10 life.

1. A. turn on B. turn off C. turn down D. turn up

2. A. and B. but too C. but also D. so

3. A. more better B. much worse C. very good D. much better

4. A. or B. but C. while D. and

5. A. calling B. calls C. called D. are called

6. A. without B. with C. for D. into

7. A. to show B. showing C. to be shown D. shown

8. A. bank B. hospital C. park D. library

9. A. in B. on C. by D. without

10. A. some day B. every day C. one day D. everyday

1. “ Don’t to strangers on your way to and from school,” mother often to me.

A. speak；says B. speak；tells

C. talk；speaks D. talk；tells

4. Suzy can read and write French.(对画线部分提问)

56. 不要浪费一滴水。

Don’t waste .

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