1.I am busy now,so I can’t help ______ the machine.A.repair B.to have repaired C.repairing 实在不知道怎么选a
1.I am busy now,so I can’t help ______ the machine.A.repair B.to have repaired C.repairing 实在不知道怎么选a
2..The boy seated himself in the corner with his back ______ to his father.
A.turning B.to turn C.to be turned D.turned为什么不能选turning而要选turned,这里有要表过去的意义吗
3..______ the room,a letter was laid on the ground.
A.Entering B.Having entered
C.He entered D.Mrs Green entering觉得前三个选项都不对,因为主句的主语是letter,但是对于选d的用法也不明白
4.______ to nuclear radiation,even for a short time,may produce variants of genes in human bodies.
A.Being exposed B.Having exposed
C.Exposed D.After being exposed 这个题更让我迷糊,主句的主语没找到,还是说主句的主语在分词短语里,是什么在核辐射下暴露了在短时间内就产生了人体基因的变异?
5.----Will you please tell us how you can seize the robbers?
----I will spend a whole week ______ in your room to wait for their coming.
A.locking B.to lock C.locked D.being locked
不明白为什么选c,即使是被锁,为什么不能是d
1. 根据题意,应该是我很忙,不能帮忙修理这台机器了.help (to) do sth 的意思是：帮忙做某事.此题容易误认为是考察can’t help doing(忍不住做某事).
2. 这个题的关键是理解短语turn one’s back to sb. “背对某人” .with+ n.+ 非谓语的选择技巧是看with后边的名词和要填的非谓语之间存在主动还是被动关系,因为his back是turn这一动作的宾语,也就是说他的背是“被转过去”的,故用过去分词作补语.再如：The boy sat there with his eyes closed. 男孩坐在那里,紧闭双眼.眼睛是“被闭上”的,所以用“closed”作补语,说明他们的状态.
3.. Mrs Green entering the room是独立主格结构,完整的句子应该是：When Mrs Green entered the room. 因为本题的后半部分是个独立的句子,而前半部分缺少连词,故不能选C一类的完整简单句,只能选含有非谓语的独立结构.再如：
The weather being fine, we decided to go fishing. （由于）天气不错,我们决定去钓鱼.独立主格的特点是逗号前后两部分的主语不同.
4．Being exposed to nuclear radiation 是这个句子的主语,中间的插入语even for a short time 可以不用管.may produce是谓语, variants of genes in human bodies是宾语.选项B、C、D在句首时都是作状语的,不能做主语,所以不对.
5.此题中的lock是及物动词,考查了lock sb. in some place. ,而且lock是短暂动词,这一点很重要.如果选being locked 表示正在被锁,而前边的时间状语是一整周的时间,不可能用这么长时间来完成“锁上”这个短暂动作,您能明白吗?
VS天才翻译家