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1、安全教育学习是提高员工安全防范意识的重要措施。“百日安全活动”开展以来，保卫部从自身着手对本部门所有员工开展集中安全教育培训Module 2 Developing and Developed countries Section Grammar 连词语法图解探究发现Norway is at the top of the list, while the US is at number 7.Although developed countries give some financial help, they need to give much more.In the last ten years i
2、n China, 150 million people moved out of poverty. However, the challenges are still great.The report shows that we are making some progress but that we need to make greater efforts.You can do it however you like.While he is in poor health, he works hard.Young as/though he is, he knows a lot.我的发现(1)由
3、句可知，but是一个连词，而however既可以用作副词，也可以用作连词。(2)句although引导让步状语从句，可以与though互换。(3)句中while引导让步状语从句，意为“虽然；尽管”，而句中while表示对比或相反的情况，意为“然而”。(4)句中as/though引导让步状语从句，且句子采用了倒装语序，即将从句中的表语、状语或动词原形提至句首。1but和however的用法两者都意为“但是；然而”，均表示转折关系，但用法有所不同。(1)but用作并列连词，常用来连接两个并列的句子或一个句子中的两个并列成分，表示强烈的对比、转折，两个并列成分之间可以用逗号隔开，也可以不用，但是bu
4、t不能置于句首，并且后面不用逗号隔开。They rushed to the station but the train had left.他们匆忙赶到车站，但是火车已经开走了。It is cold in winter here, but it is not hot in summer.这里冬天很冷，但是夏天不热。名师点津but 作连词还可用于“Im sorry/ Excuse me, but .”句式中表示歉意，but本身没有意义。Im sorry, but I cant help you with the problem. 很抱歉，我不能帮你解决这个问题。(2)however用作副词时，意为
5、“然而；但是”，用以引出令人吃惊或表示对比的话语，可以放在句首、句中或句末，但通常有逗号与主句隔开。You may be right. However, I still want to do what I planned.你可能是正确的。但是，我仍然想做我计划好的事情。Your answer is wrong, however.不过你的答案是错的。He hasnt arrived. He may, however, come later.他还未到，不过，他可能晚一会儿来。名师点津however还可以用作连接副词，意为“无论如何，不管怎样”，后面常接形容词或副词，引导让步状语从句，该从句可放在主
6、句之前或之后。You should try to get a good nights sleep, however much work you have to do. 不管你有多少工作要做，你都应该好好休息一个晚上。He tried his best to solve the problem, however difficult it was. 他尽力解决这个问题，不管它有多困难。即时演练1(1)选词填空：but, howeverHe is young but very experienced. However long it takes, Im going to get the job fi
7、nished. Later, however,_he changed his mind. He has three daughters but no sons. You should always try to achieve more, however well you have done before.(2)完成句子He likes sports, but_his_wife_likes_music. 他喜欢运动，而他妻子则喜欢音乐。However_cold_it_is,_he always goes swimming. 不管天有多冷，他都去游泳。2although 和though的用法(1
8、)although和though都是引导让步状语从句的从属连词，意为“尽管，虽然”，一般情况下可以互换。但although较正式，多用于句首，而though在非正式文体中较为普遍。although和though都不能和并列连词but连用，但可以和yet或still连用。Although he likes the girl, (yet/still) he cant marry her.虽然他喜欢这个女孩，但不能和她结婚。(2)though引导让步状语从句时可用部分倒装形式，其用法相当于as，把从句中的表语、状语或动词原形置于句首；若表语是可数名词单数，前置时要省略不定冠词。Poor though
9、/as he is, he lives a happy life.他虽然穷，但过得很幸福。Child though/as she is, she knows a lot.虽然还是个孩子，她却懂得很多。Much though/as he loved her, he didnt tell her.尽管他很爱她，但并没有告诉她。Try though/as I might, I couldnt lift the stone.尽管我试了，还是搬不动那块石头。名师点津though还可以作副词，放在句末，用逗号和主句分开，相当于however，意为“然而”。She said she would come;
10、she didnt, though.她说她要来，然而她没来。即时演练2(1)一句多译他虽然成功，但不骄傲。Although/Though he is successful, he is not proud. Successful_though/as he is, he is not proud.He is successful, but he is not proud. He is successful; he is not proud, though/however. (2)完成句子(山东高考改编)I dont really like the author, although_I_have_
11、to_admit his books are very exciting. 尽管我不得不承认他的书很振奋人心，但我并不是真的喜欢这位作家。Expert_though/as_he_was,_he failed. 他虽是专家，但还是失败了。3while的用法while作连词时用法较多，主要有以下几种含义。(1)while 作并列连词表示转折，强调前后句的对比关系，意为“然而”，此时while不能位于句首。Waving ones hand is to say “Goodbye”. Nodding the head means agreement, while shaking it means dis
12、agreement. 挥手表示再见，点头表示同意，而摇头表示不同意。(2)while引导让步状语从句，意为“虽然，尽管”，可以与although或though互换，此时while位于句首。While there are many different interpretations of our body language, some gestures seem to be universal.尽管我们对肢体语言有许多不同的理解，但有一些手势似乎应是通用的。While the Internet is of great help, I dont think its a good idea to s
13、pend too much time on it.虽然网络很有帮助，但我认为在网上花太多时间不是个好主意。(3)while引导时间状语从句，意为“当时候”，此时while相当于during the time that .，从句中的谓语动词通常是延续性动词的进行时或状态动词，不可用短暂性动词。I learnt a lot of French while I was in Paris. 在巴黎时我学了很多法语。(4)while引导条件状语从句，意为“只要”，相当于as long as，可放在句首或句中。While (As long as) there is life, there is hope.
14、 留得青山在，不怕没柴烧。即时演练3(1)写出下列句中while的含义Mary listened to the radio while she had her supper. 当的时候While I understand your opinion, I dont agree with you. 虽然You like Maths, while I prefer English. 然而_(2)完成句子(2016浙江高考改编)Although/Though/While_online_shopping_has_changed_ourlife,_not all of its effect have be
15、en positive.虽然网购改变了我们的生活，但并不是它的所有的影响都是正面的。While_Li_Ming_was_watching_TV,_he fell asleep. 李明看着电视睡着了。He went out for a walk while_I_stayed_at_home.他去散步了，而我却待在家里。While_you_dont_lose_heart,_you can pass the coming examination. 只要你不灰心，你就能通过即将到来的考试。.用适当的连词填空1(2015安徽高考改编)Although scientists have learned a lot about the universe, there is much we still dont know. 2(2015北京高考改编)He is a shy man, but he is not afraid of anything or anyone. 3(2015福建高考改编)While/Although the students ca
