【文章內(nèi)容簡介】 a quarter，half，twice，...times等。This table is twice as big as that one.這張桌子是那張的兩倍大。We got three times as many people as we had expected.來的人數(shù)是我們預(yù)料的三倍。You are not half as clever as you think you are!你沒有你自己想像的一半聰明！拓展歸納(1)“...times(倍數(shù))＋adj./＋than”也是表倍數(shù)的句型。This table is twice bigger than that one.這張桌子比那張大兩倍。The number of the students in our school is three times larger than theirs.我們學(xué)校學(xué)生的人數(shù)比他們學(xué)校的人數(shù)多三倍。(2)“...times(倍數(shù))＋the＋性質(zhì)名詞＋of...”也可表倍數(shù)，性質(zhì)名詞有size，length，width，height等。This table is three times the size of that one.這張桌子是那張的三倍大。The wall is twice the height of that one.這墻是那墻的兩倍高。句型轉(zhuǎn)換(1)This new road is 4 times as wide as the old one.This new road is 4 times the width of the old one.(2)The output of cars in 2008 is 8 times that of 2006.The output of cars in 2008 is 8 times what it was in 2006.(3)At least，the train runs five times faster than the boat.At least，the train runs six times as fast as the boat.造福人類的先驅(qū)者盡管是中國最著名的科學(xué)家之一，袁隆平仍然認(rèn)為自己是個農(nóng)民，因為他在田間耕作，進(jìn)行科學(xué)研究。的確，他那被太陽曬得黝黑的臉龐和手臂，以及他那瘦削而又結(jié)實的身軀，就跟其他千百萬中國農(nóng)民一樣，過去50年來，他一直在努力幫助他們。袁隆平博士種植的是被稱為“超級雜交水稻”的稻種。1974年，他成為世界上第一位種植高產(chǎn)水稻的農(nóng)業(yè)先驅(qū)。這種特殊的稻種使得同樣的田地多收獲三分之一的產(chǎn)量成為可能。如今中國每年出產(chǎn)的稻米有60%以上出自這種雜交稻種。袁博士于1930年出生在一個貧窮的農(nóng)民家庭，1953年畢業(yè)于西南農(nóng)學(xué)院。從那時起，找到種植更多水稻的方法就成為他一生的目標(biāo)。年輕時，他就看到了稻田增產(chǎn)的巨大需求。當(dāng)時，饑荒是許多農(nóng)村地區(qū)面臨的一個令人不安的問題。袁博士要在不增加土地面積的基礎(chǔ)上尋求達(dá)到增收稻米的途徑。1950年，中國農(nóng)民只能生產(chǎn)五千萬噸稻米，而近來卻生產(chǎn)了將近兩億噸稻米。這一糧食產(chǎn)量的增加意味著中國用僅僅占世界7%的耕地養(yǎng)活了世界22%的人口。袁博士現(xiàn)在在印度、越南和很多欠發(fā)達(dá)國家傳播提高水稻產(chǎn)量的知識。由于他的研究，聯(lián)合國在消除世界饑餓的戰(zhàn)斗中有了更多的方法。用他的雜交水稻種子，農(nóng)民們種出的糧食比以前多了一倍。袁博士對生活非常滿足。但是，他對成名并不關(guān)心，并且覺得出名后搞科研就不那么自由了。他寧愿把時間花在自己的業(yè)余愛好上。他喜歡聽小提琴樂曲、打麻將、游泳和讀書。在自己身上花錢或者享受舒適的生活對袁博士來說意義也不大。事實上，他認(rèn)為一個人有了太多錢，他的麻煩事只會更多，而不是更少。于是，他拿出好幾百萬元幫助其他人進(jìn)行農(nóng)業(yè)科學(xué)研究。然而，夢想是不花本錢的。很久以前，袁博士曾在夢里看到水稻長得像高粱一樣高，稻穗跟玉米穗一樣大，而每粒稻米像花生米一般大。袁博士從夢中醒來，希望能種植一種能養(yǎng)活更多人的水稻。許多年后的今天，袁博士還有另外一個夢想：他的稻谷可以出口并長遍全球。一個夢想并不足夠，尤其對一個熱愛和關(guān)心人民的人來說更是如此。 Ⅰ.單詞拼寫1．He is sunburnt (曬黑的)from a day on the beach.2．The human beings struggle (斗爭)with the environment.3．He has been working hard in the field for decades (幾十年)on end.4．The month output (產(chǎn)量) of the factory has increased by 10%.5．The document will be circulated (傳給)to all the members.6．He did it simply out of hunger.7．The business has expanded from having one office to twelve.8．They can’t afford to equip their laboratories because of lack of funds.9．Please bring in every single grain.10．Wool is one of the chief exports of Australia.Ⅱ.詞語填空1．This is a laboratory equipped for atomic research，where you can make a good study of atomic energy.2．The government is doing its best to_supply the people in the flooded area with necessary food，medicine and clothes.3．At the conference the scientists exchanged their new discoveries with each other.4．Southeastern173。Asian countries export different kinds of fruit every year.5．Some less developed countries are eager to_rid themselves of poverty (貧窮)．6．The Nobel Prize winner is now giving lectures around the world to_circulate what he knows in his field.7．Many schools are interested in expanding their campus (校園) to meet the need of more and more students.8．The sheep fell into the river，struggling in it for long.9．He couldn’t make himself a matter of fact，he made us more confused.10．Our government is trying to_reduce the burden (負(fù)擔(dān)) on farmers.Ⅲ.句型轉(zhuǎn)換1．Making a speech in English is not easy for me.It is not easy for me to make a speech in English.2．To going back home，she prefers staying at school.She prefers to stay at school rather than go back home.3．The number of the employees has fallen from 1,000 to 800.The number of the employees has been reduced by 20%.4．No matter what you think，you must apologize to the customer.Whatever you think，you must make an apology to the customer.5．You should look it up in the dictionary when you are not too sure about an idiom.You should refer to the dictionary when you are not too sure about an idiom.6．Great changes have taken place in the past 10 years.Great changes have taken place during the past decade.7．She pleted her courses for a degree in law in Cambridge.She graduated from Cambridge with a deg