1. It's adj for sb to do 做……对某人来说……
2. … so / such … that … 如此……以至于……… too … to do... 太……而不能……
3. not…until… 直到……才……例: I didn't go to bed until my mother came back.
4. The reason why + 句子 is that + 句子……的原因是……例: The reason why he got angry was that she told him a lie.他生气的原因是她对他说了谎。
5. That is why + 句子 那是……的原因
6. It is said that + 句子 据说……It is reported that + 句子 据报道……
7. There is no doubt that + 句子 毫无疑问……
8. It goes without saying that + 句子 不言而喻,毫无疑问
9. There is no need to do 没必要做……
10. There is no point in doing 做某事毫无意义