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.

 

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.

小刚家准备建一栋新房，爸爸买了一堆材料相同的石子，小刚选取一块石子在实验室测它的密度．
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．

小刚家准备建一栋新房，爸爸买了一堆材料相同的石子，小刚选取一块石子在实验室测它的密度．
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．