—Do you know sound travels very fast?

　一Yes. But light travels _________ sound.

A.  much faster than       B. a little faster than

C. as fast as              D. slower than

　 What do you do at weekends? Some people like to __11__ at home, but others like to go for a walk __12__ have a picnic. My friend Jack works hard in a factory during the __13__. At weekends he always _14__ the same thing. On Saturday he __15__ his car and on _16_ he takes his family to a nearby village. His uncle and aunt have a farm there. It isn’t a __17__ one, but there's always __18__ to do. The children help with the animals and give them their _19__, Jack and his wife help in the fields. At the end of the day, they are all __20__ and Jack's aunt gives them a big meal.

1.A. play　　　　 B. live　　　 C. stay 　　　　D. like

2.A. and　　　　　B. or 　　　　C. but　　　　　D. so

3.A. day　　　　　B. time　　　 C. autumn　　　 D. week

4.A. does　　　　 B. makes　　　C. borrows　　　D. has

5.A. watches　　　B. drives　　 C. sells　　　　D. washes

6. A. Monday　　　 B. Sunday　　 C. Saturday　　 D. Wednesday

7.A. small　　　　B. big　　　　C. hard　　　　 D. short

8.A. much　　　　 B. little　　 C. fast　　　　 D. far

9.A. clothes　　　B. places　　 C. food　　　　 D. water

10.A. clean　　　 B. late　　　 C. happy　　　　D. kind

How ______ rice do you want this week?

[    ]

A. much　　B. little　　C. many　　D. few

　　How can we work out this ___6_____? Scientists have found some ways to turn salt water into fresh. One important way is to ___7_____ sea water with high heat until vapor（蒸汽）rises, leaving the salt. In this way, a lot of fresh ____8____ can be made quickly.

　　But heating is not the only way to get fresh water. Other ways are tried, for ___9_____ , digging deep wells, keeping rain water and preventing（阻止）rivers from being polluted（污染）.

　　Which way is the best? To get the most fresh water for the ___10_____ money is the best.

（　）1. A. they　　　　  B. it　　　　　　　　　　　　　　 C. their　　　　　　　　　　    D. it's

（　）2. A. land　　　　   B. earth　　　　　　　　　　    C. sea　　　　　　　　　　　　  D. river

（　）3. A. 0.3％　　    B. 30％　　　　　　　　　　    C. 3％　　　　　　　　　　　　 D. 0.03％

（　）4. A. hands　　    B. head　　　　　　　　　　    C. hand　　　　　　　　　　    D. heads

（　）5. A. much　　    B. most　　　　　　　　　　    C. many　　　　　　　　　　   D. more

（　）6. A. problem　　 B. question　　　　　　　　   C. trouble　　　　　　　　　　 D. fact

（　）7. A. cook　　　　 B. boil　　　　　　　　　　　　  C. make　　　　　　　　　　   D. get

（　）8. A. waters　　   B. water　　　　　　　　　　   C. sea　　　　　　　　　　　　  D. seas

（　）9. A. an example　　　　　　　　　　　　　　　　   B. examples

　　　　 C. example　　　　　　　　　　　　　　　　　　  D. the example

（　）2. When he saw two men attacking a young woman, Mr Brown ________ .

A. drove to the police station　　　　　　　　　　　　　　 B. got out of his car and helped her

C. stopped his car and shouted　　　　　　　　　　　　  D. lay down on the ground

（　）3. When the policemen came, they found Mr Brown ________ .

A. was badly hurt　　　　　　　　　　　　　　　　　　　　    B. was a great boxer

C. was fighting the two men　　　　　　　　　　　　　　 D. was helping the young woman

（　）4. He didn't fight back because ________.

A. he wasn't a good boxer　　　　　　　　　　　　　　    B. the two men were much stronger than him

C. he could hit four of them　　　　　　　　　　　　　　  D. he had to obey（遵守）the boxing rules

（　）5. One of the boxers' rules is ________.

A. to fight with the gloves on　　　　　　　　　　　　    B. to fight without the gloves on

C. to fight with strong fists　　　　　　　　　　　　　　   D. to fight four men