第7讲 避免头重脚轻的it句型在英语中，为了避免头重脚轻，保持句子平衡，经常运用it作形式主语或形式宾语，而把真正的主语或宾语后置，作真正主语或宾语的常为不定式或从句，有时也可用动名词。it有时也可以用在一些固定句型中。灵活地运用it句式可使文章更高级，结构更紧凑。一、it作形式主语的常用句型1.It takes (sb. ) some time/energy/effort.to do sth. It took the students about two hours to finish cleaning the classroom that day.那天花了同学们大约两个小时才把教室打扫完。2.It is/was形容词(of/for sb. ) to do sth. In order to have much knowledge of Chinese culture，it is important for you to be aware of the content，Tang poetry.为了掌握许多中国文化知识，对你来说，了解唐诗的内容非常重要。(2017全国)3.It is/was形容词that.It is true that the Internet plays an important role in our daily life.确实，网络在我们的日常生活中扮演重要的角色。4.It is/was名词(of/for sb. ) to do sth. In the end，kids as we are，its our duty to control ourselves，which will greatly help our lives and study.最后，尽管我们是孩子，但是自控是我们的责任，它会对我们的生活和学习大有帮助。5.It is/was名词that.It is an honour that I have been chosen to give a speech on behalf of my school.被选中代表我的学校做演讲，我很荣幸。6.It is/was过去分词that.Its said that rap music was invented by a classical musician in 1912.据说，说唱音乐是一位古典音乐家在1912年创立的。7.It seems/appears/happensthat.It seems that our teacher have known the truth.好像我们的老师已经知道了真相。8.It occurs to/hits/strikes sb. that.It suddenly hit me that traditional culture like tea culture was of great charm and huge value.我突然想到，像茶文化一样的传统文化很有魅力和价值。(2018北京)9.It mattersthat/wh-/if/whether从句It matters that everyone does something to protect our earth.每个人做些什么来保护地球是很重要的。10.It is/was ones turn to do sth. 轮到某人做某事了It is your turn to sweep the floor today.今天轮到你们扫地了。11.It is/was time for sb. to do sth. 某人该做某事了It is (about/high) time that sb. did/should do sth. 某人该做某事了I know it is time for me to set aside some time to practice my oral English.我知道是时候抽些时间来练习我的英语口语了。Jack is a great talker.Its high time that he did something instead of just talking.Jack是一个很喜欢说大话的人。到了他做点事情而不是只讲大话的时候了。12.It is/was no good/no use/useless doing sth. 做某事没有好处/用处It is no use reasoning with her.She is always so stubborn!和她讲道理是没有用的。她总是那么固执！13.It is/was no surprise/wonder that.不足为怪，难怪The Internet keeps us informed of the latest news in the house.It is no wonder that its so popular worldwide.互联网使我们在家就能了解最新的新闻，难怪它在全世界那么受欢迎。14.It is worthwhile doing/to do sth. 做是值得的It is worthwhile reading English every day.Keep it up！每天读英语是值得的。坚持下去！即时训练1使用it句型完成句子1.如果他们家有小孩的话，带个小礼物是个不错的想法。(2018全国)Itisagoodideatobringasmallgift if they have young children.2.那种情况下，根据排名买书既方便又节俭。(2018江苏) In that case，itisbothconvenientandeconomicaltobuy books according to the ratings.3.显而易见，互联网对于我们的学习有帮助。Itisobviousthat the Internet is of great help to our learning.4.难怪他的英语口语那么好！他在英国待过两年。Itisnosurprise/wonderthat his oral English is so good.He stayed in England for two years.二、it作形式宾语的常用句型1.动词it形容词/名词(to) do/doing/that从句(常见的动词有：find，feel，think，consider，make，believe，guess，suppose，assume)(1)He has made it clear that the meeting will not be put off.他已宣布会议不会被推迟。(2)In a word，wild release makes it much more convenient for us to choose what books we like.总之，自由分享使得我们选择所喜欢的书籍方便得多。(2015重庆)2.Id/Ill appreciate it if.如果我将不胜感激I would appreciate it if you can give me some advice on how to solve these problems.如果你能给我一些怎样处理这些问题的建议，我将不胜感激。3.sb. likes/loves/hates/dislikes it when.某人喜欢/不喜欢I dislike it when a Chinese host keeps serving me the food I dont like.我不喜欢中国主人不停地给我夹我不喜欢的菜。即时训练2用it句型完成句子1.我认为对你来说，和同学们相处好是非常重要的。Ithinkitveryimportant for you to get on well with your classmates.2.如果你能在我处于困境中时帮我的忙，我将非常感激。Illappreciateitif you can do me a favor when I am in trouble.三、it用于其他常用句型1.When it comes to.当谈到The most hopeful data shared in the report shows clear evidence of parents serving as examples and important guides for their kids when it comes to reading.报告中所分享的最令人鼓舞的数据表明：在阅读方面，父母是孩子的榜样和重要的引导者。(2018全国)2.It is/was the first/second.time that.has/have/had done sth. 这是某人第一/二次做某事It is the first time that he has won the Nobel Prize in Literature.这是他第一次获得诺贝尔文学奖。3.It is/has been一段时间since.自从多长时间了It has been two weeks since you came here for the exchange program，which has benefited us all.自从你们来这儿作交流活动已两周，这对我们都有益。(2016天津)4.Itbe一段时间before.多久之后就/才Dont be upset.It will be about two years before we meet again.不要伤心了。大约两年之后我们还会再见面。即时训练3用it句型完成句子1.当谈及我所在的班级时，我必须说我不能忍受一些同学的自私。(2015广东)Whenitcomesto my class，I have to say that I cant stand some classmates selfishness.2.这是我第一次远离家乡，我发现很难适应。(2018河北衡水中学模拟)ItwasthefirsttimethatIhad lived far away from home，so I found it hard to fit in.综合演练.用it句型完成句子1.很遗憾，这个暑假我不能去美国，因为我得为上大学做准备。(2018四川双流中学一模)Itsapitythat I cant come to America this summer，as I must prepare for university.2.他擅长数学。当说到英语，他就很弱了。He is good at maths.But whenitcomestoEnglish，he is very weak.3.我认为参加比赛对你来说是一个好机会。I thinkitagoodchanceforyoutoparticipatein the competition.4.当那天到来