developing and developed countries教案5

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1、Module2DevelopingandDevelopedCountries-grammar教案Step1Presentationa.Lookatthelinkwordsbutandhoweverinthesesentences.Thenanswerthequestions.1)Thereportshowsthatwearemakingprogressbutthatweneedtomakegreaterefforts.2)InthelasttenyearsinChina,150millionpeoplemovedoutofpoverty.However,t

2、hechallengesarestillgreat.3)Morethan1billionpeopleindevelopingcountriesdonotdrinksafewater.However,inotherpartsoftheworld,e.g.EasternEurope,waterisnowmostlysafetodrink.Q1.Doeshowevermeanthesameasbut?Q2.Whichlinkwordbeginsasentence?Q3.Whichlinkwordcanjointwopartsofasentence?Q4.Whic

3、hlinkwordisfollowedbyacomma?Suggestedanswers:Q1.Yes.Q2.HoweverQ3.ButQ4.Howeverb.Lookatthelinkwordsalthoughandwhileinthesesentences.Andanswerthequestions.1)Norwayisatthetopofthelist,whiletheunitedstatesisatnumber7.2)TheUKisinthethirteenthposition,whileChinaisinthemiddleofthelist.3)

4、Althoughmorethan80%ofchildrenindevelopingcountriesgotoprimaryschool,about115millionchildrenarenotbeingeducated.4)Althoughdevelopedcountriesgivesomefinancialhelp,theyneedtogivemuchmore.Q1.Whichsentencescomparetwofacts?Q2.Whichsentencescanyourewriteusingthewordbut?Suggestedanswers:Q

5、1.Allofthem.Q2.Allofthem.Step2.Explanation.a.butandhoweverbut作为并列连词，在意义上起转折作用。but前后的两个句子或短语在意义上形成鲜明对照。but用来连接两个分句或两个较长的短语时，but前面一般要加逗号。例如：　　（1）Heisoldbutstrong.他年纪虽大却很强壮。　　（2）Learningtheguitarisn'tdifficult,butyouwillhavetopractise.　　学弹吉他并不难，但是你得练习。　　（3）Hetried，butcouldnotdoit.他试过

6、，但是干不了。　however意为“可是，然而，尽管”，较but的意味弱，通常用作连接性状语。其位置可以在句首，句末或插入句中。当其被用来对照两个分句时，中间需要有一个逗号；当它被用作句子的插入语时，则前后应各有一个逗号。例如：　　（4）However，weneednotdothatnow.可是，我们现在不需要做那个。　　（5）Hesaiditwasso；hewasmistaken，however.他说是那样的，然而他却弄错了。　　（6）Hisfriends，however，hadotherideas.然而他的朋友们却另有见解。　　注：however也可用

7、作连接副词，意为“不论怎样”，用来引导让步状语从句。例如：　　Howeverwemaydoit，itwillbeadifficultjob.无论雪下得多大，我们都必须回去。b.althoughandwhileWhile表示两个事实之间的转折对比，although可以用but改写成另一种句子while用作连词时，连接两个并列句子，表示“对比”关系。例如：　　Hewentoutforawalk，whileIstayedathome.　　（他出去散步了，而我却呆在家里。）　　Ilikesingingwhileshelikesdancing.　　（我喜欢唱歌，而她

8、喜欢跳舞。）　　Youlikesports，whileIprefe