2019-2020学年人教版高中英语必修3优化学案:Unit 4 Astronomy the science of the stars Period 4
2019-2020学年人教版高中英语必修3优化学案:Unit 4 Astronomy the science of the stars Period 4第1页

 Book3 Unit4 Period 4

学习目标:熟记和使用本节3个词组,能拓展所列相关短语

自主合作探究:

1.crash vi.& vt.碰撞;坠落;使撞毁 n.(汽车)撞车事故;(飞机)失事;突然发出的巨响

Other scientists believe that a comet crashed into the earth long ago and caused the disappearance.(P29) 其他科学家认为很久以前一颗彗星与地球相撞导致恐龙灭绝。

He witnessed a serious car crash today. Two cars crashed into each other and let out a loud crash.

今天他目睹了一起严重的撞车事故。两辆车撞在了一起,发出了很大的爆裂声。

小试牛刀: 完成句子

①飞机撞在了山上。

The plane_____________ ___the mountain.

②他的父母在火车车祸中丧生。

 His parents were killed_____________ ___..Com]

2.climate n.气候,风气,潮

Since the last ice age,the climate of the earth has not changed very much.(P29)

自从上一个冰川世纪以来,地球上的气候变化不大。

辨析:climate/weather

词语 词义 climate 指某个地方长期、平均或固定的气候状况,包括气温、湿度等。可用不定冠词修饰,如a cold climate寒冷的气候。 weather 指一天或一段时间内的晴雨、寒暖变化。不可用不定冠词修饰,如weather report天气预报。 Some plants doesn't grow well in a cold climate.有些植物在寒冷的气候条件下生长得不好。

小试牛刀:

 ①在过去的几百万年间,地球的气候发生了巨大的变化。

The earth's changed greatly in the past millions of years.

 ②天气预报员说明天天气很好。

The weatherman said the would be fine tomorrow.