如图是自制简易电动机模型．现在主要讨论该简易电动机的制作与操作问题，步骤如下：

（1）绕制线圈的铜丝外表有漆皮，必须对线圈引出线的两端（搁置于铜质弯钩的部位）进行刮漆处理，刮漆方法见放大图．问：进行刮漆处理，目的是使引出线能够____ ．

（2）如果整个制作没有问题，但接上电源后线圈不动，这时应做何尝试？（写出一点即可）____ 

（3）通电后线圈能转动，如要改变转动方向，可采取的做法是：____ （写出一点即可）

根据下列句子所给的汉语注释，写出单词的正确形式，使句子意思完整。每空只填一词。

1. Can you find Hepu on the ____ (地图) of Guangxi?

2.–-What does your aunt look like?

  ---She's of medium build, and she has long____ (头发).

3.---Which of the two T-shirts do you like better?

  ---The____ (黄色的) one.

4. My uncle goes fishing to relax every____ (星期天).

5. She began to learn to ____ (做饭) when she was eight years old.

6. When I'm down or tired, I ____ (更喜欢) movies that can cheer me up.

7. The geography teacher tells us that the Caspian Sea is 1,025 meters ____ (深的).

8. The boy who is often absent from classes will ____ (不及格) his exams this time.

9. Hangzhou is____ (广泛地) known for the West Lake and Longjing Tea.

10. There are over ____ (三十) new words in Unit 3 and I've already memorized all of them.

①微博议政开辟了公民行使民主权利的新途径

②微博议政说明了公民参政议政意识的增强

③只有网络才能搜集到真实的社情民意

④微博议政有利于公民直接参与国家事务的决策