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2020-2021学年Unit 3 The world of science集体备课ppt课件
展开一、阅读课文,找出与下列汉语意思匹配的英语句子,并找出句中的连词1.挪威位居榜首,而美国则排在第七。 2.英国排在第十三位,而中国则排在名单的中间。 3.在最近十年里,中国有1.5亿人口脱离了贫困。然而,挑战仍然是严峻的。
答案:Nrway is at the tp f the list,while the US is at number 7. while
答案: The UK is in the thirteenth psitin,while China is in the middle f the list. while
答案: In the last ten years in China,150 millin peple mved ut f pverty.Hwever,the challenges are still great. Hwever
4.虽然在发展中国家超过80%的儿童都能上小学,可仍然有大约1.15亿儿童不能接受教育。 5.这份报告表明我们正在取得一些进步,但是我们还需要更加努力。
答案: Althugh mre than 80% f children in develping cuntries g t primary schl,abut 115 millin children are nt being educated. Althugh
答案: The reprt shws that we are making sme prgress but that we need t make greater effrts. but
二、用but/hwever/while/althugh完成句子1.I cannt speak Russian my little daughter can. 2.I’m srry, it has nthing t d with yu. 3. tired,they went n wrking. 4.I think there may, ,be sme ther reasns we dn’t knw abut. 5.I like art she is fnd f music. 6.My brther decided t g t that dangerus place, I asked him nt t.
while/but
三、根据句意,用括号内所给单词的适当形式填空1.Summer is (ht)seasn f the year. 2.Shanghai is ne f (big)cities in the wrld. 3.The Yellw River isn’t s (lng)as the Yangtze River. 4.Wh is (tall),the girl r the by? 5.I think English is (interesting)than maths. 6.The mre,the (gd). 7.Peple’s life in that area is getting and (bad). 8.Things are much (light)n the mn than n the earth. 9.The car driver is very (careful)when he is driving.
the httest
the biggest
mre interesting
1.Grammar Link wrds★考点一:but和hweverWhen he gt t England,he fund,hwever,that his English was t pr.然而,他到了英国之后才发现,他英语太差了。考点延伸but表示转折、对比、对照,语气最强,为并列连词,后一分句是前句意义的转折。hwever为连接副词,可位于分句之首、之中或之尾,通常用逗号与句子其他部分隔开。
完成句子①公司已经尽力了,不过最后还是失败了。The cmpany had made great effrts. ,they failed at last. 答案:Hwever②他说事情是这样的,然而他错了。He said that it was s.He was mistaken, . 答案:hwever③看样子不会下雨,但是你最好随身带把雨伞。It isn’t likely t rain, yu’d better take yur umbrella with yu. 答案:but
★考点二:althugh和whileWhile he lves his students,he is very strict with them.虽然他爱他的学生,可是他对他们很严格。考点延伸althugh是从属连词,引导让步状语从句,有时可与thugh互换;所引导的句子通常置于句首。while可作并列连词,表示对照关系,表示前后的对比,意为“而,然而”;所引导的句子不能置于句首。还可作从属连词,引导让步状语从句,意为“虽然”,可与althugh互换,常位于句首。
完成句子①尽管才下午四点,灯已经亮了。 it was nly fur ’clck in the afternn,the lights were already n. 答案:Althugh②我一周只赚50美元,她却赚80美元。I earn nly 50 dllars a week, she earns 80 dllars. 答案:while③虽然我们意见不一致,但是我们仍然是朋友。 we have different pinins,we cntinue t be friends. 答案:While/Althugh
2.作比较★考点:作比较1)英语句子中,两者间进行比较时常用的句型有:(1)as/s+原级+as(2)比较级+than+比较对象(3)the+比较级+f the tw(4)the+最高级+f/amng/in...(5)ne f+最高级+复数名词
①He desn’t speak English as/s well as yu d.他的英语没你说得好。②Beijing is clder than Shanghai in winter.冬天北京比上海冷。③Irn is the mre useful f the tw metals.铁在这两种金属中是比较有用的一种。④Mr Li is the strictest amng the teachers in ur schl.在我们学校的老师中,李老师是最严格的。⑤This is ne f the mst beautiful cities I’ve ever been t.这是我去过的最漂亮的城市之一。
2)比较级的修饰语可以分为三类(1)表示程度的词:程度深:much(far,a lt,a great deal),even,still,rather程度浅:a little (a bit,slightly),n,any(2)表示数量的词:tw (years lder,metres lnger,hurs earlier...)(3)表示“……得多;最……”:by far(位于最高级前)
①He speaks English far mre fluently than mst f us.他说英语比我们大部分人要流利得多。②This exercise is a little mre difficult than the ne we did yesterday.这道题目比我们昨天做的要难一点。③He arrived tw hurs earlier than me.他比我早到两个小时。④This is by far the shrtest way t get there.这是目前到达那里的最近的路。
注意:(1)比较的双方应是同类(2)比较范围要清楚(3)要避免在比较级前再用mre修饰①Yur prnunciatin is better than mine.(不可用I 或 me)你的发音比我的要好。②He runs much faster than any ther students in his class.(不可说mre faster)在他的班里,他比别的同学跑得要快得多。
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