问题: 英语选择题 语法
1、Rebecca __________me earlier if she did not like her house she bought last month.
a.told b.would tell c.had told d.would have told
答案是选d
2、Scientists all over the world have suggested time and again that,if we want to live on Earth forever,we __________our environment from being polluted.
a.will prevent b.must prevent c.shall prevent d.prevent
答案是选择d
3.I'd rather you _________anything about it for the time being.
a.do b.didn't do c.won't do d.hadn't done
答案是选择b，
4.If Tom intended to start out this morning,he ______
everything ready last night.
a.has got b.would have got c.would got d.got
答案是选择b
以上4题我不知道为什么选择这些答案，请说明理由，谢谢！！！！！！！～～～～～
解答:
1、Rebecca __________me earlier if she did not like her house she bought last month.
a.told b.would tell c.had told d.would have told
答案是选d。该句是虚拟语气的非真实条件句
2、Scientists all over the world have suggested time and again that,if we want to live on Earth forever,we __________our environment from being polluted.
a.will prevent b.must prevent c.shall prevent d.prevent
答案是选择d
3.I'd rather you _________anything about it for the time being.
a.do b.didn't do c.won't do d.hadn't done
答案是选择b
I'd rahter,I'd as soon &I'd prefer 等后面的从句可用过去式动词表示现在或建立的假设，用过去完成体动词来表示过去时间的假设
4.If Tom intended to start out this morning,he ______
everything ready last night.
a.has got b.would have got c.would got d.got
答案是选择b
混合时间的非真实条件句
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