外研版（2019）选择性必修第四册Unit 6 Space and Beyond Understanding ideas 语言点课件 (共14张PPT)

(共14张PPT)
SB4U6 Space and beyond
The Call of the Challenger
(Understanding ideas)
set foot on 踏上
become accustomed to 习惯于(做)某事
one’s hearts in one’s mouths 提心吊胆/心提到了嗓子眼
be aware of 意识到，明白
go wrong 出错；出故障
make it 成功做成某事
take off 起飞
seem to have done 好像做过某事
tune in 收听，收看(某电台广播或电视播放)
be about to do 刚要做某事；正要做某事
communicate a sense of excitement and rekindle interest in 传达一种兴奋的感觉，重新激发人们对…的兴趣
on board 在船(火车，飞机)上等
cast a shadow on 给……蒙上阴影
have much patience doing sth. 有很大耐心做某事
wave to 向…挥手
little more than 仅仅=no more than
a cloud of 一团
cut short 减少
take one's place 就位；有某人的位置
join sb. in 加入某人做某事
call to 召唤
reach for伸手去够
accustom v.使习惯（于）；使适应
accustom oneself to sth. 使自己习惯于某事
become/be/get accustomed to (doing) sth.习惯于(做)某事=be/get used to (doing) sth. 习惯于(做某事)
【语境应用】完成句子。
1) He had accustomed himself to ________(climb) the steep mountain, so he had no difficulty reaching the top.已经习惯于爬陡峭的山，所以他到达山顶一点困难也没有。
2) 他习惯于早起，这对他的健康有益。
He is accustomed to getting up early, which is beneficial to his health.
climbing
scream v．(因疼痛、惊恐、兴奋等)尖声大叫；高声喊 n．尖叫声
scream (sth.) (out) at sb./ for sth. 向某人或为某事高声喊/大声叫
suspend v．暂停,中止；使…暂时停学/停职；悬，挂，吊
suspend sb. from sth. 勒令某人暂时停止某事
suspension n. 暂停,中止
Ⅱ.长难句分析
1．Ever since Neil Armstrong first set foot on the Moon back on 20 July 1969, people have become accustomed to the notion of space travel.
[句式分析]
[尝试翻译]
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(ever) since，从句一般过去时，主句用现在完成时
常与现在完成时连用的时间状语还有so far, up to now, until/till now, by now, “for＋时间段”等。
自从1969年7月20日尼尔·阿姆斯特朗首次踏上月球以来，人们已经习惯了太空旅行的概念。
2．By the early 1980s, the great rockets previously used in the American space programme had been replaced by the space shuttle.
[句式分析]
[尝试翻译]
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by+过去时间，主句用过去完成时
20世纪80年代早期，美国太空计划中使用的大型火箭已被航天飞机所代替。
by+现在时间，主句用现在完成时
by+将来时间，主句用将来完成时
They must have finished their work by this time. 他们现在一定已经完成工作了。
You will have reached Shanghai by this time tomorrow. 明天的这个时候你就到上海了。
3． It has now been over 30 years since the loss of Challenger.
[句式分析]
[尝试翻译]
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It is/ has been+时间段+since +主语+一般过去时... 自从……已经多久了
It’s a thousand years since many ancient sculptures fell into ruin.
“挑战者”号失事已经30多年了。
It was (not )+时间段+before+一般过去时　 过了一段时间就……
It will (not )be+时间段+before +一般现在时　 要过一段时间才会……
It was not long before he sensed the danger of the position. 不久他就意识到他处境危险(动作已发生)。
It will be half a year before you graduate from the school. 还有半年你才从这个学校毕业(动作未发生)。
4．The sacrifice of the Challenger calls to us, reminding us that we must continue to reach for the stars, no matter how distant they might seem.
[句式分析]
[尝试翻译]
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reminding us that …是现在分词结构作状语， 表示“提醒我们……”
“挑战者”号的牺牲召唤着、提醒着我们，不管星空看上去多么遥不可及，我们都要持之以恒地去探索。
Thank you~~