Question

英语几道选择题

1.At last,we found ourselves in a pleasant park with trees providing shade and ____ down to eat our picnic lunch.
A.sitting B.having sat C.to sit D.sat
2.Professor Smith,along with his assitants,_____ on the project day and night to meet the deadline.
A.work B.working C.is working D.are working
3.___ is no need for you to come here.
A.There B.It C.What D.Why
(PS:这道题的答案是A,但为什么不选B也)
急求详解,谢谢!

Answer 1

1、D，和found保持一致关系 所以用过去式
2、C,这题真正主语是Professor Smith,而along with his assitants是补充说明，不是真正主语，所以不看他，所以空格用单数
3 这题选A原因是 there is no need to do sth本来就固定短语，所以选A

Answer 2

D. 呼应found

C. 用单数形式，因为along with his assitants只是在介定the professor，不用理

A. 没有你来看我的需要。 There is no ... 没有...

need 在这里是名词

Answer 3

1.D 和found并列
2.C 主语是Smith
3.A 固定的 “不需要” 记住

Answer 4

1.D 和found 并列
2.C 主语是 Professor Smith
3.A There is no need to do …