Question

以下是从本单元课文中摘出的原句。试试看，能填上吗？要注意词形变化！

1．It was so narrow and small that we had to be careful to ________　________　________．

2．She once gave a magic book to Yu the Great and helped him ________ the flood ________　________．

3．For years it has been a strong attraction to me, but ________　________　________ I had never actually climbed it．

4．When we finally found ourselves under the highest layer of clouds, ________　________ we had glorious views of hills which had a kind of unimaginable beauty．

5．The Great Wall is different from ordinary city walls ________　________ it extends itself continuously for miles and doesn't encircle a city．

6．The Chinese name Changcheng or“Long Wall”________　________　________ because of its length．

7．According to records ________　________ in Chinese literature, as many as 20 principalities and dynasties took part in constructing the Great Wall．

Answer 1

答案：
解析：

　　1．keep our balance

　　2．get; under control

　　3．for various reasons

　　4．at times

　　5．in that

　　6．came into existence

　　7．put down