169. It didn't /won't take long before... 没多久坏需要多久……就……。

It didn't take long before he got used to life abroad. 没多久他就适应了国外的生活。

168. It is believed that...…人们认为……。

It is believed that what she said is true. 大家相信她的话是真的。

167. It’s hard to imagine...…很难想像……。

It's hard to imagine ^how he made it without any help. 很难想像没有人帮助，他是怎样成功的。

166. It is bad to....……是不好的。

It is bad to push yourself too hard. Just try your best.　 把自己逼得太紧不好。尽力而为就行了。

165. It is/was...that/who... [强调句句型]

It was Edward who told me about it.　 告诉我这件事的是爱德华。

164. It’s amazing (that) ...……很了不起。

It's amazing (that) China became the third country that launched a manned spacecraft.

中国成为第三个发送载人航天飞机的国家，真是很了不起。

163. It helps if ... 如果……的话，将会(对某人)有帮助／好处。

It helps if you can conquer your shyness and yell out English crazily.

如果你能够克服你的羞涩，疯狂大喊英语，将会对你有好处。

162. It happened that...……很偶然。

It happened that I won the football lottery last week.　 我上星期偶然中了足彩。

[ lottery n. 彩票；奖券]

161. It would be wonderful if... 要是……那就太好了。

It would be wonderful if we can go visit Mount Emei this summer!

要是今年夏天我们能去峨眉山旅游就好了1

160. It won't do any harm to... 没有坏处。

It won't do any harm to try it.　 试试又不会有什么坏处。