1、——Why does the lake smell terrible?——Because large quantities of water ____.A.have polluted B.is being polluted C.has been polluted D.have been polluted2、According to the literary review,Shakespeare ____ his characters live through thei

1、——Why does the lake smell terrible?——Because large quantities of water ____.A.have polluted B.is being polluted C.has been polluted D.have been polluted2、According to the literary review,Shakespeare ____ his characters live through thei
1、
——Why does the lake smell terrible?
——Because large quantities of water ____.
A.have polluted B.is being polluted C.has been polluted D.have been polluted
2、
According to the literary review,Shakespeare ____ his characters live through their language in his plays.
A.will make B.had made C.was making D.makes

1、——Why does the lake smell terrible?——Because large quantities of water ____.A.have polluted B.is being polluted C.has been polluted D.have been polluted2、According to the literary review,Shakespeare ____ his characters live through thei
1选D首先 句意是:为什么湖水闻起来很糟?——因为大量的水都被污染了.水与污染是被动关系,用现在完成时表示的含义是水污染一直从过去持续到现在将来可能还要继续污染.再加上large quantities of后加谓语复数.
2选B 句意是 根据书评,莎士比亚通过语言将他的剧中的人物写活了.因为这个动作（莎士比亚写作）发生在过去,所以应用过去完成时,表示对现在的影响.
其实这两道题都是时态问题,你可以先通过排除一些绝对不可能的,例如没被动的,第二题中将来时,和现在进行时,剩下就靠语境和只是解题了.

1、Jack is a great talker. It's high time that he_______ something instead of just talking.

【选择】D. did
【解析】
　　It's high time that … 表示虚拟语气没意思是“早该如何了”，言外之意是“但是却没有这样做”。这句话的意思是“杰克是个空谈家。他...

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1、Jack is a great talker. It's high time that he_______ something instead of just talking.

【选择】D. did
【解析】
　　It's high time that … 表示虚拟语气没意思是“早该如何了”，言外之意是“但是却没有这样做”。这句话的意思是“杰克是个空谈家。他早就该做些事情而不仅是光说不做”。虚拟语气要求从句的谓语动词要推前一个时态，即对现在虚拟用过去式，对过去虚拟用过去完成式，对将来虚拟可以用过去式也可以用 should +原形。此处是对现在的虚拟，所以要用过去时 did。
　　类似的还有：wish that …（但愿…/要是…就好了），had batter that …（最好是…就好了），would ratherthat …（但愿…就好了），

2、Mum，I was wondering if you could lend me a few dollars until I __________ on Friday.

【选择】D had been paid（答案不能是A）
【解析】
　　这句话的意思是“不知道您能不能借给我几元钱到星期五我收回欠款再还给您（直译‘到星期五我收回欠款为止’”。
　　这是一个多重复合句，其结构是“主句I was wondering + 宾语从句 if … [从句的结构是‘主句you could lend me a few dollars + 时间状语从句until I had been paid on Friday’]”
　　本句时态基点立足于过去，时间状语从句也需要用过去时态，因此只能在B. got paid和D. had been paid 两项中选择。用B项的过去时表示“借钱”以后紧接着就能“收回欠款”，用D项表示“借钱”以后过一段时间才能“收回欠款”。因此应该选择D项。
　　你可以用将来时态理解。如果改为you will/can lend me a few dollars，那么后面的后面的时间状语从句就得用 have been paid。再把它放回到表示过去时的I was wondering if 中，那么宾语从句中的主句就得改为 would 或could，而从句也相应要用 had been paid。

3、get后面跟过去分词相当于助动词be构成被动语态的作用，因此be paid（被还款）也可以用get paid代替表示被动。have paid 表示主语主动付款，have been paid 或 have got paid 表示主语被付款，即接受付款。

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