5. Follow the i     on the Internet,and you will know how to repair it.

4. Eating lots of junk food is h       to our health.

3. My uncle will be back from Japan. And I will meet him at the a     tomorrow.

2. Its my father who gave me c       to face the challenges bravely.

1. We learn English and math b       Chinese.

   Many useful machines were 1        by inventors. These machines have 2        the world a lot. There are many great inventors in the world,and Watt was one of them.

  Watt was English. When he was a child,he liked to ask questions and he was always 3        hard. One day,he was sitting in the kitchen with his grandmother,and he 4      a kettle (水壶) on the oven. Soon steam (蒸汽) began to come 5        the kettle and the lid (盖子) was shaking. Watt asked what was in the kettle. His grandmother said, "Water,my child.”

  "But I know there's 6        in it. It pushes the lid up," said Watt. His grandmother told him that it was only steam. He asked his grandmother, " 7       does the steam come from?" His grandmother said that it came from hot water. Watt said to 8     ,"The steam is very strong. It can push things. The steam will be much 9        if there's more water.” Later,Watt tried hard and made steam 10        for people. He inven?ted the first engine.

(   ) 1. A. sent   B. made   C. invented   D. worked

(   ) 2. A. changed   B. got   C. become   D. been

(   ) 3. A. playing   B. using   C. growing   D. thinking

(   ) 4. A. look at   B. looked   C. saw   D. watch

(   ) 5. A. at   B. out of   C. in   D. out

(   ) 6. A. something   B. nothing   C. anything   D. everything

(   ) 7. A. Where   B. Why   C. Whether   D. When

(   ) 8. A. him   B. herself   C. himself   D. her

(   ) 9. A. stronger   B. strong   C. weak   D. weaker

(   ) 10. A. working   B. to work   C. work   D. works

(   ) 5. Jennifer takes a lot of exercise every day and she is always full of     

   A. change   B. energy

   C. courage   D. confidence

(   ) 4. ―What am I supposed      when I meet a Korean for the first time?

     ―I'm not sure. Maybe you need to bow.

   A. do   B. to do

   C. doing   D. did

(   ) 3. John is going to           Jane.

   A. marry   B. marry with

   C. get marry   D. be married

(   ) 2. The work      in three hours. Let's hurry!

   A. must finish   B. would finish

   C. must be finished   D. is finished