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magnolia

Chapter 2 Reading. magnolia. How long do they live?. tortoise. 150 years. 40 years. mouse--- mice. 4,000 years. 70 years. 3 years. Pollution Fighters. -- the biggest and oldest living things on earth. What good are trees ?. streets?. ------ make…more beautiful and less noisy.

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magnolia

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  1. Chapter 2 Reading magnolia

  2. How long do they live? tortoise 150 years 40 years mouse--- mice 4,000 years 70 years 3 years

  3. Pollution Fighters -- the biggest and oldest living things on earth What good are trees ? streets? ------make…more beautiful and less noisy ------there’s wood in… -----there’s rubber on the end of … notebook? ------there’s paper in… ------ the fruit comes from… -----the nuts for…come from… -----the beans for …come from…

  4. natural air conditioners people? -----enjoy breathing pure, cool air We must thank … for… ? • take harmful gas from the air • release oxygen into the air

  5. When insects attack a tree, what will it do? • Can it warn its neighbours? • Can it protect himself? • How can it protect himself? …by producing a chemical. The chemical can make their leaves taste nasty. • Can trees communicate with one another? • join their roots together underground • pass food and water around • Are trees in danger? Why? …cut down and burn…but…replace hardly any of them.

  6. Question: • How many students are there in our class? • How many trees could produce enough oxygen to keep our whole class alive and healthy for a year? about one and a half hectares of trees… 3 trees ===============15 air conditioners • What’s the relationship between them? …do the job of…running almost all day

  7. thank sb. for sth./doing sth. • People-trees-make air pure • The old lady-Tom-give seats to her • My family-the policeman-his help • We-doctors-keep us healthy But:thanks to多亏了,归功于 give thanks to sb. 向某人表达谢意

  8. warn sb. of sth./sb.warn sb. against doing sth. • 1警察警告我们不要跑着过马路。 • The policeman warned us against running across the road. • 2. 老师警告我们不要抄作业。 • Teachers warn us against copying homework • 3 妈妈警告我上课不要迟到。 • My mum warns me against being late. • 4 他们警告人们不要破坏树木。 • They warn people against destroying trees.

  9. suppose release oxygen hectares warn communicating with hardly any running pure nasty sip A. think it is true B. working C. sending messages\signals D. almost none E. let out F. drink in small amount G. made by nature, not by man H. unpleasant I. a life-giving gas found in air J. areas of 10,000 square metres K. say that something bad or dangerous may happen

  10. 1 上海的市花 2 白玉兰树 3 从空气中吸取有害空气 4 喜欢呼吸纯净凉爽的空气 5使街道更漂亮,噪音更轻 6 喝可乐 7 使我们全班健康地生活 8 释放氧气到空气中 9 1。5公顷树 1 the flowers of Shanghai city 2 magnolia tree(s) 3 take harmful gas from the air 4 enjoying breathing pure, cool air 5 make streets more beautiful and less noisy 6 sip a Coke 7 make our whole class alive and healthy 8 release oxygen into the air 9 one and a half hectares of trees

  11. 1 We get some useful things from trees, don’t we? ____. Two examples are ____________________. Yes. wood and rubber 2 Is it true that trees do two main things to the air? _____. They ____________________. Yes. cool and clean it 3 I’ve heard that one has the power of 15 air conditioners. Is that right? _____. One tree has the power of ____________________. No. 5 airconditioners 4 Scientists know a lot about trees, don’t they? _____. They are __________________________________. No. onlynowbeginning to understand them

  12. The earth is flat. (I don’t believe you) • You’re looking jaded. (I don’t understand.) • What’s in that box? (It doesn’t contain anything.) • Is Tom going to win the race? (I don’t think he can run fast enough.) • Are these your shoes? (No, they don’t belong to me.) • …

  13. Mary is whistling. (I know. I hear her.) • Tom is dancing. (I know. I see him.) • Dinner is ready. (I know . I smell it.) • There’s sugar in your tea. (I know. I taste it) • You’re not eating any nuts. ( I know. I hate them.) • You’re playing that CD a lot. (I know. I love it.) • ….

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