Lesson4 Sea Stories-vocabulary學(xué)案
重點短語 【短語1】watch out【課文原句】they have a huge mouth and can eat fish as big as themselves. watch out! (page12)【名師點撥】watch out在這里的意思是"當(dāng)心；注意",相當(dāng)于look out或be careful。如:
you’ll catch cold if you don’t watch out. 【知識拓展】watch out 后接名詞時,要與for連用,意為"小心……"。如:
in public places everyone is required to watch out for thieves.
i’m always watching out for mistakes that i may have missed before.【短語2】all at once【課文原句】all at once, the sky was covered with dark clouds and in less than a minute we were in a terrible storm. (page14)【名師點撥】all at once 是副詞短語,相當(dāng)于suddenly,意為"突然"。如:
all at once she lost her temper, which made all the people present dumbfounded(目瞪口呆).【知識拓展】all of a sudden與all at once都是副詞短語,都有"突然"的意思,但all of a sudden更強(qiáng)調(diào)"出乎意料地",即unexpectedly。如:
all of a sudden, the tire burst; we had to stop on half way, considering what to do.
all at once還有"同時,一下子,馬上"的意思。如:
on hearing the news of his illness, he drove to see him all at once.【短語3】pick up【課文原句】in the end, a boat picked me up. (page15)【名師點撥】pick常作及物動詞,意思是"選擇；挑選；采；摘"。在本句中pick sb. up是一個固定詞組,意思是"(從海里或危險處)營救,搭救"。如:
she picked the best cake for herself.
we picked up as many people from the burning ship as we could. 【知識拓展】
1. pick up還有其他意思:1) (開車)接人；2) 讓人乘車；搭載；3) 學(xué)得:通過學(xué)習(xí)或經(jīng)歷獲得(知識)。
2. pick還能與其他介詞搭配構(gòu)成固定短語,如:pick on sb. / sth. (跟某人)找別扭；故意刁難挑剔；pick sb. / sth. out精心挑選；辨認(rèn)出；pick sth. over用心挑選；篩選。