2017届高考英语一轮复习课件：Module7 Unit 1《Living with technology》（1）（译林版湖南专用）_高考复习指南

2017届高考英语一轮复习课件：Module7 Unit 1《Living with technology》（1）（译林版湖南专用）

　　要花3个小时，我才能完成任务。常见的以it作形式主语的主语从句句型有4种： (1)It ＋be ＋形容词＋that从句能用于这种句型的常见形容词有：necessary, clear, true, strange, important, wonderful, possible, likely, obvious, surprising等。 ◆It's clear that they badly need help.

　　很明显，他们急需援助。 ◆It is likely that a hurricane will arrive soon.

　　很可能飓风马上就要到达。注意：这类主语从句中，若形容词为necessary, important, essential, strange等，主语从句要用虚拟语气。谓语动词形式一般为“(should)＋动词原形”。 ◆It is necessary that you (should) master the computer.

　　你很有必要掌握电脑。

　　It is strange that he should have killed himself.

　　真奇怪，他竟然自杀了。 (2)It ＋be ＋名词词组＋that从句常用于这种句型的名词词组有：a fact, a good idea, a pity, an honor, a shame, no wonder, good news等。 ◆It's a pity that you missed the film. 你没有看那部电影真是太遗憾了。 (3)It ＋be ＋过去分词＋that从句常用的过去分词有：said, reported, hoped, believed, expected, decided, wellknown等。 ◆It is wellknown that the earth moves around the sun. 众所周知，地球围绕太阳转。注意：a. it作形式主语代替主语从句时，要注意和as引导的定语从句的区别。试比较： ◆It was reported that the US was under the terrorist attack. (主语从句，有that, 无逗号) 据报道，美国遭到恐怖分子的袭击。 ◆As was reported, the US was under the terrorist attack.(定语从句，无that，有逗号) 据报道，美国遭到恐怖分子的袭击。 b．若过去分词为表示“建议”、“命令”、“愿望”，如suggested, ordered, requested等词时，从句需用虚拟语气(should＋动词原形)。 ◆It is requested that Mr. Wang (should) give a performance. 有人请求王先生表演一个节目。 (4)It ＋ seems/happens/appears/doesn't matter/makes no difference ＋ that从句。 ◆It happened that I had seen the film. 碰巧我已看过了那部电影。 ◆It seems that he is playing football. 好像他正在踢足球。 ◆It makes no difference whether he will attend the meeting or not. 他是否参加会议无关紧要。 2、The telephone is very convenient for communication, and most people in the world today cannot live without it. 电话对于交流来说非常方便，当今世界上许多人没有电话就不能生存。