高三英語Astronomy教案
注意：此結構中常用的名詞有：size, height, weight, length, width depth 等。
[練習] 完成句子或翻譯。
1). 這把尺子是那把的三倍那么長。
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2). 到的學生是我們預計的五倍。there are ______ ______ ______ ______ ______ ______ we expected.
keys: 1). this ruler is three times as long as that one. = this ruler is three times longer than that one.
= this ruler is three times the length of that one. 2). four times as many students as
課文要點（模塊）
ⅰ.課文詞匯填空（旨在復習本課文中的單詞拼寫和主要詞語等）
根據(jù)課文內(nèi)容完成下面語法填空，注意單詞拼寫和詞語用法：
as the result of "big bang", the violent earth slowly settled into a globe 1 (move) around the sun. the gasses which were to make the earth's 2 （大氣層）came into being from the explosion of the dust ball, with water 3 (follow) them while the earth cooled down. it allowed the beginning for life. many millions of years 4 , the first 5 (極度的) small plants began to appear 6 the surface of the water, 7 (繁殖) and filling the sea and oceans, which encouraged the later development of early shellfish and all sorts of fish. as time passed, green plants taking carbon dioxide and producing 8 （氧氣）came to land and grew into forest. later the chains of lives continued, such as insects, amphibians, reptiles, dinosaurs and mammals, the typical of 9 is human being. they don't only do 10 to the earth but cause damage to it.
答案：1. moving 2. atmosphere 3. following 4. later 5. extremely 6. on 7. multiplying 8. oxygen 9. which 10. good
ⅱ.課文大意概括（旨在訓練用30個單詞概括大意的能力）
閱讀課文，試著用30來個單詞概括課文大意或將下面的短文譯成英語，
短文解釋了生命如何在地球上開始的。首先，地球爆炸和產(chǎn)生水。因為水的存在，然后植物和動物，包括人類逐漸在地球上出現(xiàn)。
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答案：the passage explains how life began on the earth. at first, the earth exploded and produced water. and then plants and animals including human beings appeared on the earth gradually because water exists on the earth.