Unit 4 Astronomy: the science of the stars 单词学案 No._2_教师寄语:Love is ever the beginning of knowledge as fire is of light. 知识总是从爱好开始,犹如光总是从火开始一样。[练习] 用 cheer 的短语或其适当形式填空。1). Your visit has greatly ______ him up.2). The crowd ______ the runners ______ as they started the last lap.3). You look as though you need ______ up.12.now that 既然,由于引导原因状语从句. 在语义上相当于 since, that 在口语中可省略.Now that he is busy, we won’t wait for him. 既然他很忙, 我们就不等他了.Now (that) you have passed the test, you can drive on your own.同义词: since; seeing thatSince you are ill, I’ll go alone. 译: 既然你病了,那我就一个人去。Seeing (that) he is busy, he’s unlikely to come. 译: 他很忙,可能不会来了。13.break out 突发,爆发The war ___________between the two countries. 这两国之间爆发了战争.(broke out)填空: break _____________ 脱离/挣脱….. break ______ 冲破,取得突破break ________ 出故障,坏掉,失败;(健康等) 垮掉break ________ 破门而入break ________ 粉碎,解散1.The computer system ______ suddenly while h e was searching for information on the Internet.A. broke down B. broke out C. break up D. break in 2.After being ill, her health ___________. 生病之后,她的身体垮掉了.3.The meeting ________ at 10 o’clock in the morning. 会议在上午十点散会.4. The computer system ______ suddenly while he was searching for information on the Internet.A. broke down B. broke out C. break up D. break in 14. watch out 密切注视;当心;提防 [典例] Watch out! There’ s a car coming. 小心! 汽车来了。[重点用法]watch out for sb./ sth. 警惕或注意某人/事物watch over 保护;照看 单词课后巩固学案单词拼写1. Something was wrong with the heating s________, so we all felt very cold.2. Last night, we had a v________ storm because of...