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1、as if重要程度： 难易程度：He remembers everything of his childhood as if it _ just now.A. was happening B. happensC. happened D. has happened【参考答案】C【拓展延伸】as if的用法：1. 可在look, seem等系动词后引导表语从句。 She looks as if she were ten years younger. 她看起来好像年轻了十岁。2. 当说话者认为句子所述的是真实的或极有可能发生或存在的事实时，as if从句用陈述语气。 It seems as if o
2、ur team is going to win. 看来我们队要胜了。3. 当说话人认为句子所述的是不真实的或极少有可能发生或存在的情况时，as if从句用虚拟语气。 It looks as if a tornado swept through your room. 好像有龙卷风席卷过你的房间。 She loves the boy as if she were his mother. 她爱这男孩，就好像她是他的妈妈一样。4. 如果as if 引导的从句是主语+系动词结构，可省略主语和系动词等成份。He acts as if (he were) a fool. 他做事像个傻子。1. 用括号内词的适
3、当形式填空Dont handle the vase as if it (be) made of steel.The two strangers talked as though they (be) friends for years.From time to time Jason turned round as if (search) for someone.The little girl spoke as if she (be) an old lady.2. 看来好像很快就要有一场大雨。(as if) a heavy rain soon.3. (2016北京)My grandfather s
4、till plays tennis now and then, _ hes in his nineties.A. as long as B. as ifC. even though D. in case4. We should protect our environment from being polluted _ our next generation will enjoy a blue sky and live a healthy life.A. as if B. so that C. even if D. in case1. were 【解析】此处表示对现在事实的虚拟，故用一般过去时。be动词一律用were。had been 【解析】此处表示与过去事实相反的假设，故用过去完成时。searching 【解析】根据语境可知，此处表示动作正在进行，故as if后面用动词-ing形式。had been 【解析】此处表示与过去事实相反的假设，故用过去完成时。2. It seems as if there will be4. B 【解析】句意：我们应该保护我们的环境免受污染，这样我们的下一代就可以享受蔚蓝的天空，过健康的生活。as if似乎；so that以便，为的是；even if即使；in case以防万一。 故选B。as if虚拟总结：_ - 3 -
