一、判断下列每组单词画线部分发音是(√)否(×)相同。
( )1.$\begin{cases} \underline {ch}air\\ mat\underline {ch}\end{cases}$
 ( )2.$\begin{cases}r\underline {oo}m\\ g\underline {oo}d\end{cases}$
 ( )3.$\begin{cases}z\underline {oo}\\ b\underline {oo}k\end{cases}$
( )4.$\begin{cases} teach\underline {er}\\ \underline {C}hinese\end{cases}$
( )5.$\begin{cases}\underline {s}ure\\ \underline {sh}e\end{cases}$
( )6.$\begin{cases}s\underline {ch}ool\\ wat\underline {ch}\end{cases}$

1. √；2. ×；3. ×；4. √；5. √；6. ×

( )1.____ often do you go camping?
A. What
B. Why
C. How

C

( )2.They go swimming ____ a week.
A. two
B. first
C. three times

C

( )3.What are you ____ to do tomorrow?
A. going
B. go
C. /

A

三、用合适的介词填空。
1. Mr. Bear decides to send the letter(信) ____ Mr. Pigeon.
2. He goes to a post office ____ his town.
3. They can send messages(消息) ____ smoke(烟) and fire(火).
4. Electricity(电) helps us to send messages all ____ the world.
5. I often go shopping ____ my mother on Sundays.

1. to；2. in；3. with；4. over；5. with