1 . As is known, a baby often                 its needs by crying loudly instead of speaking its mind directly.

A．explores

B．communicates

C．involves

D．replaces

2 . After e______(在……逛逛) the old part of town, there is going to be a guided tour of the world famous cathedral. (根据汉语提示单词拼写)

3 . These ideas will be e____ in more detail in chapter 7. (根据首字母单词拼写)

4 . There is a lot to ____________(探索)at senior high school. （根据汉语意思单词拼写）

5 . New medicine and instruments are being developed every day to ____________ life.

A．extend

B．expose

C．explore

D．exchange

6 . The old rules have to be ____________ because they only applied to the circumstances that existed when they were made a hundred years ago.

A．organized

B．impressed

C．explored

D．revised

7 . It is said that the early European playing-cards were __________ for entertainment and education.

A．explored

B．applied

C．designed

D．exchanged

8 . Children who have chances to e_______________ natural areas tend to develop a strong love for science. (根据首字母填空)

9 . There is a lot to__________________________________（/ik'splɔ:(r)/) at senior high.(根据提示填空)

10 . In the past two decades, researchers have e________all round the desert for oil. (to travel around an area) （根据提示首字母填空）