181. It is not unusual for sb. to do... 某人做……不足为奇。

　　It is not unusual for the British people to drink tea.英国人喝茶不足为奇。

　　182. It is possible /impossible to...……是(不)可能的。

　　It's impossible to predict the outcome of the game.

　　要预知比赛结果是不可能的。[ outcome n. 结果；成果]

　　1 83. It is dangerous to...．．．危险。

　　It is dangerous to explore the jungle with so many wild animals around.

　　在很多野兽出没的丛林里探险是危险的。

　　184. It is (rather) common to do...……(相当)普遍。

　　It is rather common for women to hold important positions in companies now.

　　如今女性在公司担任重要职位相当普遍。

　　185. It is reported that...据说……。／据报导……。

　　It is reported that the world famous football star will come to China next year.

　　据说那位闻名世界的足球明星明年要来中国。

　　186. lt is required that... 要求……。[主语从句使用虚拟语气l

　　It is required that every student (should) attend the meeting this afternoon.

　　要求每个学生都参加下午的大会。

　　187. It is said that... 据说……。

　　It is said that Liu Xiang will come to our city soon. 据说刘翔不久将来我市。

　　188. It is thought that... 人们认为……。

　　It is thought that man's ability to learn languages makes him different from the animals.

　　人们认为人类的语言学习能力使其区别于动物。

　　189. It is (not) true that... ……(不)是真的。

　　It is true that city life is much more exciting than country life.

　　确实，城市生活比乡村生活更令人兴奋。

　　190. It is (very) difficult to...……(非常)困难。

　　It is very difficult to foretell what the world will be like in the future.

　　很难预测将来的世界会怎样。[ foretell v. 预言；预测]

　　191. Ifs really a challenge for me to...……对我来说确实是一个挑战。

　　It's really a challenge for me to take this job, and I thin I will appreciate working with you.

　　做这份工作对我来说确实是一个挑战，我想我会很高兴和你们一起工作的。

　　192. It is (very) useful to...……很有用。

　　It is very useful to recite English sentences and passages.

　　背诵英语句子和短文非常有用。

　　193. It is/ was obvious/clear that... 很明显……。

　　It is obvious / clear that she is terribly nervous on stage. 很明显她在台上非常紧张。

　　194. It seems / seemed that...好像……。似乎……。

　　It seemed that no one knew what had happened.似乎无人知道发生了什么事。

　　195. It sounds like ...…听起来好像……。

　　It sounds like a good idea.听起来这主意不错。

　　196. It takes / took / will take sb. some time / money to do sth．

　　某人花／花了／将花多长时间／多少钱做某事。

　　It took me years of hard work to speak good English.

　　为了讲一口流利的英语，我花了多年时间刻苦操练。

　　197. It wasn't until…that... 直到……才……。

　　It wasn't until yesterday that I got your letter.我直到昨天才收到你的来信。

　　198.It would be wonderful if... 如果……那就太好了。

　　It would be wonderful if we can get together on Christmas.如果圣诞节我们能聚一聚那就太好了。

　　199. It's not /just like sb. to do sth.……的行为不／正像某人的一贯作风。

　　lt's not like Jim to be late for class. He regards time as the most important thing in life.

　　上课迟到不像吉姆的一贯作风，他把时间看作是生命中最重要的。

　　200. lt’s a bad habit to...……是一个坏习惯。

　　It's a bad habit to put off things until the last minute.把事情拖到最后一刻才做是个坏习惯。

　　201. It's a great pleasure to...……(感到)非常愉快。

　　It's a great pleasure to do business with you.跟你做生意我感到非常愉快。

　　202. It's customary to...…是习惯。

　　It's customary to give people gifts on their birthday.过生日送礼物是一种习俗。

　　203. It's delightful to...……令人很高兴。

　　lt's delightful to play by the seashore.在海滨玩令人很高兴。

　　204.lt's my great honor to...……是我莫大的荣幸。

　　It's my great honor to introduce the governor.我很荣幸向大家介绍我们的州长。

　　205. It's (not) good to...……(不)好。

　　It's not good to get into the habit of telling lies.养成说谎的习惯不好。

　　206. It's our duty to... ……是我们的责任。

　　It's our duty to protect the forests from destruction.保护森林免遭破坏是我们的责任。

　　207. It's wrong to...……是不对的。

　　It's wrong to read people's private letters without permission.未经允许看别人的私人信件是不对的。

　　208. It's a shame / pity that... 可惜/遗憾……。

　　It's a shame that you cannot make it to the party tonight.今晚你不能来参加聚会，真可惜。

　　209. It is (really) unbelievable that...……(真)让人难以置信。

　　It's really unbelievable that such an honest fellow should have betrayed his friends!

　　这样一个老实人竟会出卖朋友，真让人难以置信1

　　210. It is /will be difficult to...……(会)很难。

　　I think it will be difficult to tell her the truth.我认为告诉她真相会很难。