1、不用说?? It goes without saying that ?
= (It is) needless to say (that) ?
= It is obvious that ?
It goes without saying that it pays to keep early hours。
2、在各种??之中，?? Among various kinds of ?，? /= Of all the ?，? 例︰在各种运动中我尤其喜欢慢跑。
Among various kinds of sports, I like jogging in particular。
In my opinion, ?
= To my mind, ?
= As far as I am concerned, ?
= I am of the opinion that ?
例：In my opinion, playing video games not only takes much time but is also harmful to health。 就我的看法打电动玩具既花费时间也有害健康。
4、随着人口的增加?? With the increase/growth of the population, ?
随着科技的进步?? With the advance of science and technology, ?
例：With the rapid development of Taiwan's economy, a lot of social problems have come to pass。
5、??是必要的It is necessary (for sb。) to do / that ?
?? 是重要的It is important/essential (for sb。) to do / that ?
?? 是适当的It is proper (for sb。) to do / that ?
??是紧急的It is urgent (for sb。) to do / that ?
例：It is proper for us to keep the public places clean。
It is proper that we (should) keep the public places clean。
6、 花费 spend ? on sth. / doing sth. ?
We shouldn't spend too much time on something we aren't interested in。
7、 how 引导的感叹句
At least it will prove how honest you are。
A)如果你不??，你就会?? If you don't ?，you'll ?
例︰If you don't keep working hard, you'll lose the chance。
B) 如此??，以至于?? so ? that ?
例：At that moment, I was so upset that I wanted to give up。
C) 每当我听到??我就忍不住感到兴奋。Whenever I hear ?，I cannot but feel excited。 每当我做??我就忍不住感到悲伤。Whenever I do ?，I cannot but feel sad。
每当我想到??我就忍不住感到紧张。Whenever I think of ?，I cannot but feel nervous。 每当我遭遇??我就忍不住感到害怕。Whenever I meet with ?，I cannot but feel frightened。 每当我看到??我就忍不住感到惊讶。Whenever I see ?，I cannot but feel surprised。 例：Whenever I think of the clean brook near my home, I cannot but feel sad。
= Every time I think of the clean brook near my home, I cannot help feeling sad。 每当我想到我家附近那一条清澈的小溪我就忍不住感到悲伤。
我认为，?? / 我认为??不 I think / I don't think that ?
我想知道是否?? I wonder whether ?
例：He doesn't think I should stop him joining the club。
10、Since + S + 过去式，S + 现在完成式。
例：Since he went to senior high school, he has worked very hard。