七、An advantage of ~~~ is that + 句子(......的优点是......)例句：An advantage of using the solar energy is that it won‘t create (produce) any pollution.使用太阳能的优点是它
十、Adj + as + Subject(主词)+ be, S + V~~~ （虽然......）例句：Rich as our country is, the qualities of our living are by no means satisfactory. (by no means = in no way = on no account 一
十三、~~~ enable + Object(受词)+ to + V (......使......能够......)例句：Listening to music enable us to feel relaxed.听音乐使我们能够感觉轻松。十四、On no account can we + V
十六、Those who ~~~ (......的人......)例句：Those who violate traffic regulations should be punished.违反交通规定的人应该受处罚。十七、There is no one but ~~~ (没有人不...
十九、It is conceivable that + 句子 （可想而知的）It is obvious that + 句子 （明显的）It is apparent that + 句子 （显然的）例句：It is conceivable that knowledge plays an
二十二、Since + S + 过去式，S + 现在完成式。例句：Since he went to senior high school, he has worked very hard.自从他上高中，他一直很用功。二十三、It pays to + V ~~~
二十五、Spare no effort to + V (不遗余力的)We should spare no effort to beautify our environment.我们应该不遗余力的美化我们的环境。二十六、bring home to + 人 + 事 (让.
二十八、Get into the habit of + Ving = make it a rule to + V (养成......的习惯)We should get into the habit of keeping good hours.我们应该养成早睡早起的习惯。二十九、Due to/
三十一、Leave much to be desired (令人不满意)例句：The condition of our traffic leaves much to be desired.我们的交通状况令人不满意。三十二、Have a great influence on ~~ (
三十四、Pose a great threat to ~~ (对......造成一大威胁)例句：Pollution poses a great threat to our existence.污染对我们的生存造成一大威胁。三十五、do one‘s utmo