《All these problems are very serious》SectionD PPT
第一部分內(nèi)容：Grammar
Indefinite pronoun and adverb 不定代詞和副詞
一、構成。
不定代詞、副詞是由some, any, no, every與thing, one,
body, where 等構成。
E.g. something, someone, nowhere, anybody等。
二、用法。
1．通常情況下,由some, every加后綴構成的不定代詞、
副詞常用于肯定句；由any加后綴構成的不定代詞、副
詞常用于疑問句、否定句中。
E.g. You will find your bag somewhere.
Can you hear anything?
2. 注意：當說話人希望得到肯定答復,或是表示建議、請求等意圖時,something, somebody, someone也可以用于疑問句中。當要表達“任何人；任何事物”時,anything, anybody, anyone也可以用于肯定句中。
E.g. Would you like something to drink?
Anybody can do it except Tom.
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《All these problems are very serious》PPT，第二部分內(nèi)容：Exercises
1. —Which would you like to drink, tea or coffee?
—________, thanks. I’m not thirsty.
A. Either B. Neither C. Little D. Few?
2. The students are doing some cleaning. Some are sweeping the floor, ________ are cleaning the desks and chairs.
A. otherB. the otherC. anotherD. others?
3. My parents are ________ doctors.
A. both B. allC. either D. neither
4. There is ________ with my computer. Can you help me?
A. wrong anything B. anything wrong
C. wrong something D. something wrong
5. The wind was blowing strongly. ________ people walked in the street.
A. LittleB. A littleC. FewD. A few
6. Hurry up. There is ________ time left.
A. a littleB. littleC. a fewD. few
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《All these problems are very serious》PPT，第三部分內(nèi)容：Language points
1. How can we avoid a serious water shortage? 我們?nèi)绾伪苊馑Y源短缺呢？
不定式不可以做賓語。
e.g. He avoided answering my questions.
2….we should discover ways to reuse water.我們需要找到再利用水的方法。
3.Although the world is hungry, it is even thirstier
雖然世界是饑餓的，但是他更渴。
thirsty adj.缺水的;（口）渴的
4.While nearly ? of the earth is covered with water , we are still short of drinking water.
盡管地球差不多四分之三都被水覆蓋，我們?nèi)匀蝗鄙亠嬘盟?nbsp;
nearly adv.幾乎，將近
nearly 與almost 區(qū)別 ：
almost 多表示時間、程度、距離、進度， 且almost 可以修飾more than, too, nothing, nobody, nowhere, no one, none, never 等詞，nearly 則不行。nearly只與not連用。
e.g. I have almost never seen him.
I nearly didn’t hear what the teacher said in class.
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《All these problems are very serious》PPT，第四部分內(nèi)容：Project
Making Posters About Natural Resources
1.Divide the class into several groups: Water Group, Tree Group, Soil Group …
2.Each group should discuss their own uses, the problems that they face and their wishes. Then give a report in class. Example:
Uses: I am soil. Plants can’t grow without me. People use me to make many things …
Problems: Sometimes people use too many chemicals in the fields. What’s worse, they put waste into the land … So I’m hurt. Please help me.
Wishes: I hope human beings can protect and take care of me. And then I could do more useful things for them…
3. Make some posters with the result.
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《All these problems are very serious》PPT，第五部分內(nèi)容：Summary
We learn:
1. some words: avoid, discover, thirsty, nearly, law
2. some phrases: day by day, be short of
3. some sentences:
(1)But people’s need for water is increasing day by day.
(2)While nearly ? of the earth is covered with water, we are still short of drinking water.
We can:
1.Talk about ways of saving water.
2.Summarize and use the indefinite pronoun and adverb correctly.
3. Write a proposal.
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《All these problems are very serious》PPT，第六部分內(nèi)容：Assignment
Read 1a.
Review the useful expressions and key sentences which we learn in this topic.
Preview Section A in Topic 3.
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