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问题 填空题

比x的3倍少4的数是______，9除以2的商与7的和是______．

答案

（1）x×3-4=3x-4；

（2）9÷2+7，

=4.5+7，

=11.5．

故答案为：3x-4，11.5．

阅读理解

Look at the photo. The two girls have big blue eyes and long brown hair. They are both ten years old. They are in the same class. The one in a yellow skirt is Lily. The other (另一个) in an orange skirt is Lucy. Their dad is Mr. White. He is in a brown coat. Their mom is Mrs White. She is in a black dress. Who is that boy in a blue cap? He is Lucy and Lily’s brother(哥哥)Bob. He is a high school student. Look! Lucy and Lily are in a black car.

根据短文内容，选择最佳答案。

小题1: Lucy and Lily are ________ years old.

A. 8                   B. 9                    C. 10

小题2:Lucy and Lily’s hair is ____________.

A. long and brown          B. short and brown         C. long and blond

小题3: Bob wears _________.

A. black shoes             B. a blue cap          C. a brown coat

小题4:Mr. White’s car is ________.

A. black               B. blue                C. green

小题5:Which is TRUE(哪一项是正确的？)

A. Lucy and Lily have two brothers.

B. The girl in an orange skirt is Lily.

C. Mrs. White’s dress is black.

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问答题 简答题

设备检修是，零部件清洗作业应遵守哪些原则？
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