人教版高中英语必修三Unit 4《Astronomy：the science of the stars》（第3课时）课件.ppt

Astronomy:the science of the stars
Unit 4
第三课时 Using Language
Unit 4
课堂要点探究
2
课堂达标验收
3
课后强化作业
4
课前新知预****br/>1
课前新知预****br/>Ⅰ.单词速记
(n.)万有引力;重力
(n.)卫星;人造卫星
(n.)气候
(vi.& vt.)碰撞;坠落
(n.)宇宙飞船
(n.& vt.)拉(力);拖;牵引力
gravity
satellite
climate
crash
spaceship
pull
(vi.& vt.)(使)浮动;(使)漂浮(n.)漂浮物
(n.)生物学→________(n.)生物学家
(adj.)温和的;文雅的→gently(adv.)温和地
(n.)物理学家→________(n.)物理学→physical (adj.)物理的;物理学的;体力的
float
biology
biologist
gentle
physicist
physics
Ⅱ.短语互译
(光线) ________________
;爆发________________
up __________________
that ________________
out for _____________________
block out
break out
感到高兴;感到振奋
既然
密切注意;当心;提防
Ⅲ.完成句子
,我有幸得到一个机会和我的朋友李彦平,一位天文学家,一起到太空旅行。
Last month I ____________________ make a trip into space with my friend Li Yanping,an astronomer.(...enough to...足够……以至于可以……)
,就会感到月球的引力在拉我们,但是,月球的引力不像地球的引力那么大。
When we get closer to the moon, we shall feel its gravity pulling us,but it will not be ____________________ the earth's. (as...as...和……一样)
,我发现自己被带到一个相当于地球上两倍远的地方并且摔倒了。
But when I tried to step forward,I found I was carried ______________ on the earth and fell over.(as结构的倍数表达法)
,看来走路也的确需要练一练了。
Walking ____________ a bit of practice _________________. (do强调结构;now that从句)
答案: lucky enough to have a chance to strong a pull as as far as need; now that gravity has changed