请根据下列提示写出相应单词。

1．辩明v．________

2．刺；戳n．________

3．发动机n．________

4．反应v．________

请根据下列提示写出相应单词。

1．重大的adj．________

2．病毒n．________

3．不平衡n．________

4．显微镜n．________

阅读下列短文，用适当的词填空。

　　As she walked round the large shop, Edith realized how difficult it was to choose a 　　1　　 Christmas gift for her father．

　　She 　　2　　 that he were as easy to please as her mother, who was always 　　3　　 with perfume(香水)．Besides, shopping at this time of the year was a most 　　4　　 job．People 　　5　　 on your feet, pushed you with their shoulders and almost knocked you over in their hurry in order to find something cheap 　　6　　 of you．

　　Partly to have a rest, Edith paused in front of a counter, where some beautiful ties were on 　　7　　．“They are 　　8　　 silk,”the shop assistant told her with a smile, trying to 　　9　　 her to buy one．But Edith knew from past 　　10　　 that her choice of ties hardly ever pleased her father．She moved on slowly and then, quite by chance, 　　11　　 where a small crowd of men had gathered round a counter．She found some fine pipes on sale and the 　　12　　 were very beautiful．Edith did not hesitate for long, although her father only smoked a pipe once in a 　　13　　, she believed this was certainly to please him．

　　When she got home, with her small but 　　14　　 present hidden in her handbag, it was time for supper and her parents were already at table．Her mother was in great 　　15　　．“Your father has at last decided to stop smoking,”she told her daughter happily．Edith was so 　　16　　 that she could not say a single word．

1．________　2．________　3．________　4．________　5．________

6．________　7．________　8．________　9．________　10．________

11．________　12．________　13．________　14．________　15．________

16．________

介词填空。

It's unwise ________ you to spend your salary in advance．

介词填空。

Will it be convenient ________ you to start work tomorrow?

介词填空。

Isn't surprising ________ him not to be present at the meeting?

介词填空。

It's very nice ________ you to offer me help．

介词填空。

It's terrible ________ me to stay here alone．

They were ________(因寒冷而颤抖)．

The escaped prisoner was under arrest again．(同义句替换)

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