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Module2 Developing and Developed Countries-grammar教案

发布时间:2019-10-14

step 1 presentationa.       look at the link words but and however in these sentences. then answer the questions.1)      the report shows that we are making progress but that we need to make greater efforts.2)      in the last ten years in china, 150 million people moved out of poverty. however, the challenges are still great.3)      more than 1 billion people in developing countries do not drink safe water. however, in other parts of the world, e.g. eastern europe, water is now mostly safe to drink.q1. does however mean the same as but?q2. which link word begins a sentence?q3. which link word can join two parts of a sentence?q4. which link word is followed by a comma?suggested answers:q1. yes.q2. howeverq3. butq4. howeverb.       look at the link words although and while in these sentences. and answer the questions.1)      norway is at the top of the list, while the united states is at number 7.2)      the uk is in the thirteenth position, while china is in the middle of the list.3)      although more than 80% of children in developing countries go to primary school, about 115 million children are not being educated.4)      although developed countries give some financial help, they need to give much more.q1. which sentences compare two facts?q2. which sentences can you rewrite using the word but?suggested answers:
q1. all of them. q2. all of them.step 2. explanation.a.       but and howeverbut 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 ) he is old but strong. 他年纪虽大却很强壮。  ( 2 ) learning the guitar isn't difficult, but you will have to practise.       学弹吉他并不难,但是你得练习。  ( 3 ) he tried, but could not do it. 他试过,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,we need not do that now. 可是,我们现在不需要做那个。  ( 5 ) he said it was so;he was mistaken,however. 他说是那样的,然而他却弄错了。

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