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I ________ TV yesterday evening.
2. It was a fine day yesterday. (对划线部分提问)
________ the ________ yesterday?
3. He did his homework last night. (改为否定句)
He ________ his homework last night.
4. I was in the supermarket yesterday afternoon. (对划线部分提问)
________ you yesterday afternoon?
5. I saw some seals. (改为一般疑问句)
________ you ________ seals?
句型转换。
1. The dress cost so much that she didn’t buy it.（用too … to … 改写）
The dress cost ___ ___ ___ her ___ buy.
2. It rained yesterday, so I stayed at home.（用because改写）
____ it ____ yesterday, I ____ at home.
3. My parents will go to America in two weeks.（对划线部分提问）
___ ____ ___ your parents ___ to America.
4. People use thermoses (热水瓶)for keeping water warm.（改为被动语态）
Thermoses ____ ___ ___ ____ water warm。
5. I hardly ever meet him after he moved to another district.（对划线部分提问）
____ ____ ____ you meet him after he moved to another district?
6. Collecting coins interests the small boy.（用interested改写）
The small boy ___ ____ ___ ___ coins.
7. Basketball was invented by a Canadian doctor.（改为主动语态）
a Canadian doctor _______ ______.
8. Naismith thinks he can do it well.（改为过去时）
Naismith ____ he _____ do it well.
9. He divided the players into two teams of eleven.（改为同义句）
He ____ the players into two teams of eleven.
10. He might know anyone at the party.（改为表示否定推测的句子）
He ____ ____ know anyone at the party.
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1. The dress cost so much that she didn’t buy it.（用too … to …改写）
The dress cost ___ ___ ___ her ___ buy.
2. It rained yesterday, so I stayed at home.（用because改写）
____ it ____ yesterday, I ____ at home.
3. My parents will go to America in two weeks.（对划线部分提问）
___ ____ ___ your parents ___ to America.
4. People use thermoses (热水瓶)for keeping water warm.（改为被动语态）
Thermoses ____ ___ ___ ____ water warm。
5. I hardly ever meet him after he moved to another district.（对划线部分提问）
____ ____ ____ you meet him after he moved to another district?
6. Collecting coins interests the small boy.（用interested改写）
The small boy ___ ____ ___ ___ coins.
7. Basketball was invented by a Canadian doctor.（改为主动语态）
a Canadian doctor _______ ______.
8. Naismith thinks he can do it well.（改为过去时）
Naismith ____ he _____ do it well.
9. He divided the players into two teams of eleven.（改为同义句）
He ____ the players into two teams of eleven.
10. He might know anyone at the party.（改为表示否定推测的句子）
He ____ ____ know anyone at the party. 查看习题详情和答案>>
他先将托盘天平放在水平桌面上，调节托盘天平平衡时，发现指针停在分度盘的右侧，要使天平平衡，应将横梁右端的平衡螺母向 (左／右)移动；当他用天平测物体质量时，发现指针偏向分度盘的左侧，这时应该在天平右盘中 (增加／减少)砝码；
测小石子的密度，主要实验步骤是： A．用量筒测出小矿石的体积；B．将小矿石从水中取出，立即放在已调节平衡的天平盘上，加减砝码和调节游码，测出小矿石的质量；C．再用密度计算公式求出小石子的密度．请你评估：这一实验过程测算出的密度结果______(选填“偏大”、 “偏小”或“准确”)，原因是_______________________．
刚按图甲所示的方法测石子的质量，请指出操作中的三个错误：
① ；
；③ ．
纠正错误后继续实验，当盘中所加砝码和游码位置如图19乙所示时天平平衡，则此石子的质量为 g．在量筒内装有一定量的水，该石子放入前、后的情况如图19丙所示，则石子的体积是 cm3，此石子的密度是 kg/m3． 查看习题详情和答案>>
他先将托盘天平放在水平桌面上，调节托盘天平平衡时，发现指针停在分度盘的右侧，要使天平平衡，应将横梁右端的平衡螺母向 (左／右)移动；当他用天平测物体质量时，发现指针偏向分度盘的左侧，这时应该在天平右盘中 (增加／减少)砝码；
测小石子的密度，主要实验步骤是： A．用量筒测出小矿石的体积；B．将小矿石从水中取出，立即放在已调节平衡的天平盘上，加减砝码和调节游码，测出小矿石的质量；C．再用密度计算公式求出小石子的密度．请你评估：这一实验过程测算出的密度结果______(选填“偏大”、 “偏小”或“准确”)，原因是_______________________．
刚按图甲所示的方法测石子的质量，请指出操作中的三个错误：
① ；
；③ ．
纠正错误后继续实验，当盘中所加砝码和游码位置如图19乙所示时天平平衡，则此石子的质量为 g．在量筒内装有一定量的水，该石子放入前、后的情况如图19丙所示，则石子的体积是 cm3，此石子的密度是 kg/m3． 查看习题详情和答案>>