根据首字母提示完成单词拼写。

1. If you make so much noise, you may d______ others.

2. It is out duty to take part in p____ our environment.

3. Can you t____ this English sentence into Chinese.

4. It is important for you to buy a g______ book, when you learn a foreign language.

5. An SOS Children's Village gives help to the h____ children.

交感神经兴奋时可引起

A．瞳孔缩小

B．逼尿肌收缩

C．消化道括约肌舒张

D．汗腺分泌

E．支气管平滑肌收缩