6. Like many famous scientists, Li Siguang ____________ (致力于) himself to the study of science.

5. Don’t get ____________ (patient) about your personal trouoble.

(B) 根据句意和汉语注释，写出单词的正确形式。

4. When you feel tired, you’d better wear ___________ (energy) colours, such as green.

3. Are you satisfied with these ____________ (dancer) performances in the opera?

2. They will lose ____________ (they) if they go down that path.

(A) 根据句意,用括号内所给单词的适当形式填空。

1. Many Chinese have trouble using a knife and fork ______________ (correct).

Jody was ten years old when he decided he needed a job. He thought it might be 　　36　 　to raise (养) worms. He could sell them to farmers and people who fished. So in 　　37　 , he bought many worms. But that winter the cold weather killed all the worms because he had not 　　38　 　them in a warm place.

　 The next spring Jody 　　39　 　again. He bought more worms, which he took good care of. When winter came, he took them inside 　　40　 　they would stay warm. Many people bought his worms.

　 One day when Jody was twelve, he got a letter. It was frome state (州) of New York. The letter said, “ Everyone who 　　41　 　things has to pay taxs (税)!” Jody made only one dollar selling worms. But he still 　　42　 　to pay part of that money to the state. He told many people in his town what had 　　43　 . Soon some people from a television station 　　44　 　with Jody. Many people saw it and they began to write letters to the state. The letters now said that the law was 　　45　 . Finally the law was changed. Children like Jody can now sell things without paying money to the state.