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（1）选用刻度尺的作用是为了便于比较_________；（选填“①”、“②”或“③”）
（2）选用两根完全相同的蜡烛是为了比较________；（选填“①”、“②”或“③”）
（3）在利用蜡烛B确定出蜡烛A所成像的位置后，移去蜡烛B，并在其所在位置上放一光屏，则光屏上_________（选填“能”或“不能”）接收到蜡烛A的像。 查看习题详情和答案>>
根据句意及汉语提示，用短语的恰当形式完成下列句子，并将正确答案写在答题卡相应的位置。
1.All the children _________________ ( 应该 )study hard.
2.______________ ( ……的数量 ）the students in our school is 1400.
3._________（ 毫无疑问） that it is the most expensive to go by plane.
4.The room is too noisy, please _____________（调低音量）the radio.
5.How do you _________（ 处理 ）the waste water from the factory?
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根据句意及汉语提示用所给词的适当形式填空。（5分）
1.Get up and go to bed early are good _______ (习惯).
2.Michael thinks walking is a good way to relax _______(他自己).
3.He isn’t at school now. _______ (或许) he is at home.
4.It is doctors’ duty to _______ (拯救) the patients.
5.We should sleep _______ _______ (至少) 8 hours every day.
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根据句意及汉语提示用所给词的适当形式填空。（5分）
【小题1】Get up and go to bed early are good _______ (习惯).
【小题2】Michael thinks walking is a good way to relax _______(他自己).
【小题3】He isn’t at school now. _______ (或许) he is at home.
【小题4】It is doctors’ duty to _______ (拯救) the patients.
【小题5】We should sleep _______ _______ (至少) 8 hours every day.
I want a house ________ a swimming pool.
2. 他晚上工作，我白天工作。
He works ________ ________ and I work ________ ________ ________.
3. 公园里有很多孩子，有的在踢球，其他的在拍照。
There are many children in the park. ________ are playing soccer, ________ are ________ photos.
4. 直走，右拐，公园就在饭店旁边。
Go straight and ________ right, the park is ________ ________ the restaurant.
5. 当人们出去吃饭时我很忙。
I am busy when people ________ ________ to dinners.
6. 每个人都正躺在沙滩上。
Everyone ________ ________ on the beach..