牛津深圳版英語(yǔ)七下unit4savethetreesreadingppt復(fù)習(xí)課件-資料下載頁(yè)
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【導(dǎo)讀】aboutpinetrees.and/tw/sounds.trees.trees?Use:pencil,chopsticks,Wear:flower,Drink:tea(leaves),Whatdotreesdoforus?forustobreathe.efromtrees.pencils,andchairs.與……作斗爭(zhēng)。由……制成。其形式。mylife.it.afternoon.e______.Imagineifwedon’tprotectthetrees,Whatwillhappen?lesstrees.Topromotethe. approach.Whenyouwritecanuse. bothsidesofpaper.Nottousedisposable. Don’tstripthebarkand. thetrees.manyasyoucan.12.stopdoingsth.9.由……制成。lookaround
【正文】 illion） ； *表示不具體的數(shù)目時(shí)用復(fù)數(shù)形式，且與 of 連用，構(gòu)成短語(yǔ)millions of，意為“大量的；數(shù)以百萬(wàn) 計(jì)的”。 如： 這棟房子價(jià)值兩百萬(wàn)元。 The house costs two million yuan. 每年，數(shù)以百萬(wàn)計(jì)的游客來(lái)游覽北京。 Every year, millions of tourists e to visit Beijing. 類似 million 用法的數(shù)詞還有： hundred和 thousand。 選用 million或 millions of填空。 1. There are ________ books in the library. 2. There are over six ________ people in this city. million millions of Using suffixes to guess meanings Look at these two sentences. Do you know the meanings of useful and harmful? ? Trees give us a lot of useful things. (樹(shù)帶給我們?cè)S多有用的東西 ) ? Trees take in harmful gases from the air. (樹(shù)木吸收空氣中的有害氣體 ) ? Useful and harmful both end in ful. It is a suffix meaning ‘ full of ’. (有益的和有害的都以 ful結(jié)束 ,這是一個(gè)后綴的意義“全” ) Can you guess the meanings of the following words? Can you give some more examples? Complete the sentences with the correct words: 1. The rescue team came quickly and s_____ the old woman’ s life. 2. You can d_________ this problem with your classmates. 3. How can we f_______ against air pollution? 4. Science and technology(技術(shù) ) makes our lives more c__________. ave iscuss ight onvenient Complete the article with the words and phrases from the box. Change their forms if necessary. be made of in fact produce harmful millions of take in Trees are our best friends on Earth. They(1)________ oxygen for us to breathe, and they(2) _______ waste gas from cars and other(3) ________ gases from the air. Trees also make our lives more fortable and convenient. Look around and you will find that a lot of products(4) ___________ wood. However, trees are now in danger. People cut down __________ trees every year. Can you imagine the world without trees? (6) ______, if we don’ t start protecting them from now on, we’ ll soon lose our friends, the trees. producetake in harmful are made of millions of In fact
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