请教语法，谢谢！

WeiZhenUID: 2101725

18．6．The first inhabitants of the territories_____ Canada came across the Bering Strait and along      
the edge of the Arctic ice.
A make up that now
B make up now that
C that make up now
D that now make up
D
18.8.The most important chemical catalyst on this planet is chlorophyll, ______________carbon dioxide and water react to form carbohydrates.
A whose presence
B which is present
C presenting
D in the presence of which
D
17.19 (In) plane geometry, the sum of ( the internal) angles of (any) triangle (has)  always  equal
to 180 degrees.
D
16.4.Stars shine because of _____produced by the nuclear reactions taking place within then.
A the amount of light and heat is
B which the amount of light and heat
C the amount of light and heat that it is
D the amount of light and heat
D
16.15An image on a national flag can symbolize political ideas that_____ express.
A take many words to otherwise would
B would take t many otherwise words
C many words to take would otherwise
D would otherwise take many words to
D
16.30Alaska became the forty-ninth state ( in) 1959,(and) Hawaii became the (fiftieth) state (lately) that year
D.
15.18Materials (that of) clay are (among ) the most ancient (manufactured articles) and have played a vital role (in) human civilization.
A
15.39Mercury is (so much) close to the Sun (that it is )usually (invisible) in the (glare)  of  the
Sun’s rays.
A

mxggUID: 2111875

1.选D,
定语从句,只能在C,D中选一个,now 是修饰动词短语make up的，而且最最重要的是，
在及物动词或是短语与其所连接的宾语之间不能加副词.
2.空格后面是一个完整的句子,主谓宾都全.所有要加一个状语，只有D可以充当状语
3.D
has -> is
be equal to 等于．．．
4.because of 后面加名词，所以排除Ａ
C的定语从句中多了一个it
B选项没有这样的用法,如果是定语从句,which不能这样单独的使用
5.正常的定语从句,正常语序,otherwise副词不放在动宾之间,所以选D
6.lately->later
7.delete "that"
8.delete"much"
当much修饰形容词的时候，后面为比较级

zangkanntUID: 2153426

18.6 territories 的定语从句 that now make up ， now 作为 adv 修饰 made

18.8 应该是D， in the presence of which作carbon dioxide and water react to form carbohydrates的状语

17.19  has -> is

16.4 选择D 是因为 because of 后面要跟名次结构，介词后面一定跟名词结构

16.30 late 既是adj 又是adv lately是“最近”adv ，为什么不查字典

15.18 Materials (that of) clay 根据句意 应该变成 such as

15.39 so ... that ... so 后面那个 much 是多余的

zangkanntUID: 2153426

15.18 我搞错了，版主对

WeiZhenUID: 2101725

谢谢！