Question

两道英语选择题

1.according to new scientific assessments ,two thirds of carbon dioxide __in nearly equal proportions from the united states and western european countries.
A.have come B.has come C.having come D.coming

2.it is a general belief that it is not learning about english ,but learning english that ___important for learners of english as a foreign language .
A.are B.being C.it is D.is

Answer 1

两题考查得都是主谓一致原则。

1. B
此题需要填入谓语动词，而CD都是非谓语形式，排除；
two thirds of carbon dioxide做句子主语时，动词单复数选择采用就近原则，所以是和carbon dioxide（二氧化碳）保持一致，所以用单数has。

2. D
1) 该题后句是个强调句型：
it is not learning about english ,but learning english that ___important for learners of english as a foreign language.
强调的是主语not learning about english, but learning english，

2) 把句子还原成正常句序：
not learning about english but learning english ____ important for learners of english as a foreign language.

3) not...but...连接并列主语时，谓语动词的单复数形式也采用就近原则，即和learning english保持一致，所以用单数形式。

Answer 2

1 a
2 d

Answer 3

1、B
2、D

Answer 4

b,b.

非谓语的考察？