高一英語Festivals around the world教案
step3. language points
step4. ss act the scene 4 out.
period 4 talking and listening in the workbook.
unit 4 astronomy：the science of the stars
period 1 grammar points.
一.語法要點
主語從句：在復合句中作主句的主語的從句叫主語從句。引導主語從句的詞有連詞that, whether；連接代詞who, what, which；連接副詞when, where, how, why等。
eg: which team will win the match is still unknown.
主語從句放在句首，句子常顯得笨重，因此一般把它放到句子后面，前面用引導詞”it”來作主語。
eg: it’s strange that he didn’t come yesterday.
二.重點難點
1.nobody knew that it was going to be different from other planets going to be different from other planets going round the sun.
going round the sun 為現在分詞短語定語，表示一般的動作。
eg: men breaking the law will be punished.
現在分詞短語，也可表示進行的動作
2. weather life will continue on the earth for millions of years to come will depend on whether this problem can be solved.
for millions of years to come 中不定式to come 作定語，與前面的名詞有邏輯上的主謂關系。
eg: she is the last person to tell lies.
3.the problem was that the earth became violent because it was not clear whether the solid shape was to last or not.
the problem was that …, that 引導表語從句，that 只起連接作用，無意義，但不能省略。
eg: the trouble is that we are short of money.
4.as the earth cooled down, water began to appear on its surface.
as conj. 隨著，在…期間；由于，因為；盡管，即使；當…的時候；像…一樣
5. that made it possible for life to begin to develop.
it 是形式主語，真正的主語是不定式to begin to develop.
eg: he thinks it’s his duty to help others.
三.功能句型
指示（introductions）
please look at/ listen to … please pay attention to ...
please check that … make sure you …
don’t forget to … watch out for …
you need … you’d better …
you must/mustn’t …
四. 重點單詞及短語
單詞
① atmosphere n. 大氣，空氣，氣氛
a friendly atmosphere 友好的氣氛
atmospheric adj. 大氣的，有氣氛的