《Space Exploration》SectionD PPT教学课件

人教版高中英语必修三《Space Exploration》SectionD PPT教学课件，共57页。

互动探究

重点词汇

1Some people argue that we should stop wasting time and money exploring space.(教材P44)一部分人认为我们应该停止浪费时间和金钱去探索太空。

argue vt.& vi.论证;争辩;争论;主张,认为

We argued the matter over for hours.

我们为这事争辩了几小时。

Columbus argued that the world was round.

哥伦布认为地球是圆形的。

When I passed,they were arguing heatedly in the room.

我路过时,他们正在房间里激烈争论。

They argued with each other about whether they should spend all their savings on the wedding.

他们为是否应该把所有的积蓄都花在婚礼上而相互争吵。

Many committee members argued for changing the rules.

许多委员会成员为改变这些规则而争辩。

We argued him out of going on such a dangerous journey.

我们劝说他别去进行如此危险的一场旅行。

2It has directly resulted in the many satellites that now orbit Earth.(教材P44)如今环绕地球运行的众多卫星都直接归功于太空探索。

result in 导致;造成

This kind of things can result in many social problems.

这种事情可以造成许多社会问题。

Stress and tiredness often result in a lack of concentration.

紧张和疲劳常导致人精神不集中。

3Seeing pictures of our planet as an island in a black sea made people realise that our planet’s resources are limited.(教材P44)看着我们星球的照片,犹如黑色汪洋中的一个小岛,人们意识到地球的资源是有限的。

limited adj.有限的

I have only a limited understanding of French.

我只懂得一点儿法语。

重点句式

Countries around the globe are spending billions of dollars and lots of time on various space missions,whether to Mars or other planets much further away.(教材P44)

世界各国正在投入数十亿美元的资金和大量时间执行各种太空任务。无论是去火星还是更远的星球。

【句式剖析】whether...or...意为“是……还是……”,whether表示一种选择,其后可以跟介词短语或不定式短语。

She made the mistake whether by accident or by design.

不知她是偶然还是故意去犯这个错误的。

I don’t know whether to accept the offer or refuse it.

我不知道是接受这个提议好,还是拒绝好。

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