几道语法题，大家看看

gamawangjiu

1，(Addressing) themes that were (unique)  american, the poet walt whitman (celebrated )the lives of (ordinary people.)

答案是B，有什么原因吗

2，(The) flamingo (constructs )a cylindrical mud nest for( its )egg,which both parents care( for it.)

答案是D，为什么

3，Acclimatization is (the process) by which an organism adjusts (to living) in an environment( to )which( it normally )unsuited.

答案是B，为什么

4 learining that takes place in infancy provides the ( ) for the eventual transformation of a child .

a,foundation is necessary b,necessary foundation is c,necessary in the foundation

d,foundation necessary

答案只能选D，但我有点不明白的是necessary 为什么要后置

5，The planets far from the Sun are (so remote from )any heat (source) that their temperatures are( thought) to be (much near) absolute zero.

答案选D为什么

6，The( oldest )public edifice in Washington D.C.,the White House was (originally )constructed in the 1790's ,   (also) has been rebuilt or extensively remodeled( three times since.)

答案选C为什么

7，(Much )of the work of( the )anthropologist margaret mead was( devoting) to a study of patterns of (child rearing) in various cultures.

答案选C为什么

8，living organisms contain more water(   ) substance.

a. than do any other b. does than anyother   c. other than do they any  d. than they do any other.

答案选D，我感觉是A

9，At its center ,the sun has a density of over a hundred times (   )  and  a temperature of 10 to 20 million degrees centigrade.

a .that of water b.of water c. than that of water. d .water

答案是A，为什么

请各位牛人耐心看完