高中英语it用法知识点总结

高中英语 it 用法知识点总结_ It 的用法是高中英语知识点之语法考查的热点和重点。它的用法多，考察形式多样，要求广阔考生全面掌握其基本用法。酷课网根据历年高考对 it 用法考察归纳总结了高考常考点及注意事项。 1.It is+被强调部分+that 该句型是强调句型，将被强调的放在前面，其他部分置于之后，(强调的主语假如是人，可以用 who 来替换 that) 假如把这种句型结构划掉后，应该是一个完整无缺的句子，这也是推断强调句型与其他从句的方法。(假如强调的是动词就要用到 do 的各种形式) It was they that (who) cleaned the classroom yesterday. ---Where did you buy the apples? ----It was on the farm where we worked. (True) ----It was on the farm that we worked.(False) 注解：如用that，答非所问。 考点：强调句和定语从句的综合考查。 2. It is not until +被强调的部分+ that 考点：强调句 和倒装句 强调句：It was not until she took off her dark glasses that I realized she was a film star. 倒装句： Not until she took off her dark glasses did I realise she was afilm star. 注意事项：是主句倒装，分句不倒装。 3. It is clear (obvious, true, possible, certain) that. 该句型中 it 是形式主语，真正的主语是 that 引导的主语从句，常译为清楚(显然、真的、肯定)是主语从句最常见的结构。 It is very clear that hes round and tall like a tree. 4. It is important (necessary, right, strange, natural) that 该句型和上一句同属一个句型。由于主句中的形容词不同，that 后的从句中要用虚拟语气(should+动词原形)should 可以省去。建议记住该句型中的形容词。 It is important that we (should) learn English well. It is necessary that he (should) remember these words. 考点：主语从句和虚拟语气的综合。 5. It is said (reported, learned, believed ) that 该句型中的 it 仍是形式主语，真正的主语是 that 引导的主语从句。该结构常译为据说(据报道，据悉) It is said that he has come to Beijing. It is reported that another earth satellite has been put into orbit. 考点：考察主语从句中时态的...