Question

West Africa today is separated from North Africa　　　　  1. _________________

by the Sahara Desert, but it has not always separated　　    2._________________

in this way. The huge area of the very dry land makes　　   3._________________

up the Sahara was used to be rich. Up to about 800 B.C.　　 4._________________

the Sahara was covered in tall trees and green grass.　　　　 5._________________

There were a plenty of animals. Broad rivers can run　　    6._________________

through it, and there were much fish in them. From　　　　 7._________________

one end of the Sahara to the other, scientists had found　　  8._________________

the remains of the tools, fishing hooks and even picture　　  9._________________

on rocks what together prove the experience of an　　　　 10._________________

<

ancient civilization.

 

Answer 1

答案：
解析：

1.　　　　 完全正确 2.　　　　 it指西非，根据前一句可知应该是被分割 3.　　　　 后面已经有谓语了，所以这里的谓语只能是定语从句里的谓语 4.　　　　 used to曾经是，be used to习惯于 5.　　　　 be covered with被…所覆盖 6.　　　　 plenty of很多，没有a 7.　　　　 fish是可数名词，不能用much 8.　　　　 这句话没有必要用过去完成时，过去完成时表示的是过去的过去。 9.　　　　 前面都是复数，这里也应该一样，发现的图画应该不止一幅 10.　　 这里的先行词在后面的句子里做主语，不能用what来引导

提示：

1.√   2. separated---been separated   3. makes---that /which makes    4. was used---used    5. in---with    6. a plenty---plenty    7.  much---many     8. had---have   9. picture---pictures    10. what---which / that