3.the first thing, we, do, consider, whether ... or ..., good, others, our society (用定语和宾语从句) The first thing we should do is to consider 答案:________________________________________ whether it is good to others or our society. ___________________________________________ 4.time, us, take measures, prevent ... from ..., earth, get warmer (用it 作形式主语) It's time for us to take measures to prevent the 答案:①__________________________________________ earth from getting warmer. (It's time for sb. to do sth.) It's high time that we took measures to prevent the ②________________________________________________ earth from getting warmer. (It's high time that ...)
Ⅰ.高频单词必记 1._________ adj. ancient volunteer 2._________ n. 古代的;古老的 志愿者;志愿兵
adj.
vt.& vi.