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第八周 避免头重脚轻的it句式
it除了用作人称代词外，还常用作形式主语或形式宾语，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
在英语中，为了避免头重脚轻，经常运用it作形式主语，而把真正的主语后置，作真正主语的常为不定式或从句，有时也可用动名词。
1．It takes (sb.) some time/energy/effort ... to do sth.
It took them about half an hour to work out the difficult maths problem. 他们花了大约半个小时的时间才解出这道数学难题。 2．It is/was＋形容词＋(of/for sb.) to do sth.
(2018·江苏高考书面表达)In that case, it is both convenient and economical to buy books according to the ratings. 在那种情况下，按排名购买图书既方便又经济。 3．It is/was＋形容词＋that ...
It is true that smartphone plays an important role in our daily life.确实，智能手机在我们日常生活中扮演重要的角色。 4．It is/was＋名词＋(of/for sb.) to do sth.
It is everyone's responsibility to obey the rules to keep the society in order and people's lives safe. 遵守规则让社会发展平稳、人民生活安定是每个人的责任。 5．It is/was＋名词＋that ...
(2017·全国卷Ⅰ书面表达)It's really a good idea that we should spend some time taking a brief look at the history of the Tang Dynasty.
我们应该花点时间简要了解唐朝的历史，这的确是个好主意。 6．It is/was＋过去分词＋that ...
(2018·全国卷Ⅱ书面表达)It is believed that the English short film will be not only meaningful but also interesting. 相信这部英文短片不仅有意义，而且很有趣。 7．It seems/appears/happens＋that ...
It happened that he was a doctor, so the sick man was saved. 碰巧他是个医生，因此病人得救了。 8．It hits/strikes/occurs to sb. that ...
Did it ever occur to you that you would end up in prison if you continued behaving like that? 你就没想到如果继续这样做最终会被关进监狱吗？ 9．It is/was (about/high) time that ...
It's high time that we students should work/worked harder at our lessons as the College Entrance Examination is approaching.
随着高考的临近，该是我们学生更加努力学习功课的时候了。 10．It matters＋that/wh-/if/whether从句 It doesn't matter whether it is expensive or not. 它是否昂贵并不重要。
11．It is/was one's turn to do sth.轮到某人做某事
It is your turn to pick up the kids from school this afternoon.今天下午轮到你去学校接孩子了。 12．It is/was time for sb. to do sth.某人该做某事了
I know it is time for me to set out to do my homework, but I just can't resist playing computer games.我知道是开始做作业的时候了，但我就是忍不住要玩电脑游戏。
13．It is/was no good/use/useless/pleasure doing sth.做某事没有好处/用处/乐趣 It is no use trying to solve the problem by force. Peace talks are the only solution. 试图用武力解决问题是没用的，和谈才是唯一的办法。
14．It is/was no surprise/wonder that ...……不足为怪/难怪…… This book is so well written. It is no wonder that it's so popular worldwide. 这本书写得如此好，难怪它在全世界那么受欢迎。 15．It goes without saying that ... 不用说……
Therefore, it goes without saying that it is this motto that brings me motivation and encouragement. 因此，不用说是这句箴言给我带来了动力和鼓励。 [即时演练] 补全句子
1．(2018·全国卷Ⅰ书面表达)这真的是体验中国文化非常好的一个机会。 It_is_really_a_good_opportunity_to_experience Chinese culture. 2．显而易见，iPad对我们的学习有很大帮助，尤其是对我们的英语听力。 It_is_obvious_that iPad is of great help to our study, especially to our English listening. 3．不用说，现代科技给我们的生活带来了方便和舒适。
It_goes_without_saying_that modern technology brings us convenience and comfort in life. 4．据报道，这次事故源于司机的粗心驾驶。
It_was_reported_that the accident resulted from the driver's careless driving. 5．众所周知，学好英语对我们大家都大有益处。
It_is_universally_acknowledged/It_is_well_known_that learning English well will be of great benefit to us all.
二、it作形式宾语及其他的常用句型
it除了可以作形式主语外，还可作形式宾语，作形式宾语和在一些常见句型中的应用都可以提升文章的档次，使文章更高级。
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)
①She found it easy to retell the story when she looked at the pictures.她发现看着图画复述这个故事很容易。 ②In 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。 2．I'd appreciate it if ...如果……我将感激不尽 I'd appreciate it if you don't tell anybody about this. 这件事你不说出去的话，我会感激不尽。
3．Sb. would prefer it if ... 如果……某人将会非常喜欢
Mary would prefer it if you attend the party on the summer vacation. 如果暑假你来参加那个聚会，玛丽将会非常喜欢。
4．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 don't like.我不喜欢中国主人不停地给我夹我不喜欢的菜。 5．When it comes to ... 当谈到……
(2016·四川高考书面表达)When it comes to the season I like best, spring will always occur to me in no time. 当谈到我最喜欢的季节，我会立刻想到春天。
6．It is the first/second ... time that ... 这是第一/二……次…… It is the first time that he has won the Nobel Prize for Literature. 这是他第一次获得诺贝尔文学奖。
7．It is/has been＋一段时间＋since ...自从……多长时间了
It is already three years since he worked in this company, and now he can't still find a job. 自从他离开这家公司以来已有三年了，现在还没有找到一份工作。 8．It＋be＋一段时间＋before ...多久之后就/才…… Don't be upset. It will be half a year before we meet again. 不要伤心了，半年之后我们还会再见面。 [即时演练] 补全句子
1．我认为我们每天喝大量的开水是必要的。
I think_it_necessary_that we take plenty of boiled water every day. 2．(2018·全国卷Ⅰ书面表达)我认为采纳我的建议对你有很大帮助。 I consider_it_of_great_help to you to take my suggestions. 3．当谈及选择时，我宁愿去旅游。
When_it_comes_to a choice, I prefer to go traveling. 4．我们高中毕业已经十年了。
It_is/has_been_ten_years_since we graduated from high school. [综合演练提能]
Ⅰ.用it句式补全句子
1．(2018·北京高考书面表达)我突然想到，像茶文化这样的传统文化具有极大的魅力和巨大的价值。 It_suddenly_hit_me_that traditional culture like tea culture was of great charm and huge value. 2．(2018·江苏高考书面表达)毫无疑问，完全依赖消费排名是不明智的。
There is no doubt that it_is_unwise_to_depend_completely_on the ratings in consumption. 3．如果你能教我如何用电脑，我将不胜感激。
I'd_appreciate_it_if you could teach me how to use the computer. 4．当谈及我的班级时，我必须说我不能忍受一些同学的自私。
When_it_comes_to my class, I have to say that I can't stand some classmates' selfishness. 5．不久之后，通往停车场有两个入口，使得现在我们进去更加容易。
Soon after, there are two entrances to the parking places, making_it_easier_for_us_to_enter it now. 6．你穿什么并不重要，只要你看上去干净整洁就行。 It_doesn't_matter_what you wear, so long as you look neat and tidy. Ⅱ.请按以下内容要点写一篇有关Lucy的英语短文，尽可能多地使用it句式。
1．露西没有通过汉语口语考试，这是很令人惊奇的，而且她不相信是真的。但是真的很遗憾，她没有通过考试。