《The Study of Living Things》Look into Science! PPT课件

《The Study of Living Things》Look into Science! PPT课件

第一部分内容：学习目标

objectives

To learn some new words:biology，fantastic, butterfly……

To understand the passage.

To learn Attributive clause.

Think about it

1.Would you like to be a biologist when you grow up? Why or why not?

2.What mysteries of nature do you know about?

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The Study of Living ThingsPPT，第二部分内容：Words

biology    n.   

butterfly  n.

migrate   v.

fantastic   adj.

completely  adv.

grandchild   n.

female   n. 

milkweed  n.

chemical   n.

puzzling   adj.

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The Study of Living ThingsPPT，第三部分内容：Language Points

1. 有关attention的短语

2. as…as 的用法

3. lie 与 lay的用法

4. fantastic

5. chemical

6. have been drawing

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The Study of Living ThingsPPT，第四部分内容：Discussion

What do you think is the most fascinating thing in nature?

Are you familiar with these sentences?

They are from the books we have learned. 

1. In Mexico, the butterflies always return to the same small piece of forest, which is only 20 kilometres wide.

2. The butterflies that return to the south are the great-great grandchildren of the butterflies that left for the north.

3. But in Mexico, people cut down the trees that the butterflies need to rest on because they want more land for farming.

4. In the United States and Canada, farmers use chemicals that kill milkweed.

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The Study of Living ThingsPPT，第五部分内容：Grammar

Attributive Clause

定语从句是指在句中作定语的______。先行词是被定语从句所修饰的词 （通常是名词或代词）。关系词，也叫作引导词，是在从句中替代先行词，在定语从句中充当一定的成分，通常是______或______，作_____时常可以省略。先行词为人时，引导词常用_____或_____；先行词为物时，引导词常用______或_______。

特殊情况下，由that引导的定语从句：

1.先行词为all, everything, nothing, something, anything, little, much 等不定代词时。

2. 先行词被all, little, much, every, no 等修饰时。

3. 先行词被序数词或最高级修饰时。

4. 先行词被the only, the very, the same, the last修饰时。

5. 先行词为人和物的组合。

6. 主句是who/which开头的特殊疑问句。

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The Study of Living ThingsPPT，第六部分内容：Homework

1.To grasp the contents of this lesson.

2.Preview Lesson 29.

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