Question

—________ two months enough for the project to be finished?
—I am afraid not. The professor is ill and only after he recovers ______ go on with it.

A．Is; he can	B．Are; he can
C．Are; can he	D．Is; can he

Answer 1

D

試題分析：句意：--兩個(gè)月的時(shí)間足夠完成計(jì)劃了嗎？--恐怕不能，教授病了，只有在他康復(fù)之后才能進(jìn)行。two months表示時(shí)間的詞作主語(yǔ)謂語(yǔ)動(dòng)詞用單數(shù)；在and后的分句中only+狀語(yǔ)放在句首應(yīng)該用部分倒裝，故選D。
點(diǎn)評(píng)：本題難度適中。主謂一致及部分倒裝是高中階段重要的兩個(gè)語(yǔ)法項(xiàng)目，需要考生牢記它們的各種情況，在正確理解語(yǔ)境的下，做出正確的判斷。
即學(xué)即練：I received his mother’s telephone call at eleven.＿＿that he was badly hurt in an accident yesterday.
A.Then did I know           B.Only then I knew
C.Only then did I know      D.Only then knew I
解析：C。句意：only修飾句子的狀語(yǔ)（副詞、介詞短語(yǔ)、狀語(yǔ)從句）位于句首時(shí)，句子的主謂部分倒裝。