1、學(xué)必求其心得，業(yè)必貴于專精module 2 developing and developed countries section grammar 連詞語法圖解探究發(fā)現(xiàn)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 in china， 150 million people moved out of poverty。

2、 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。我的發(fā)現(xiàn)（1)由句可知,but是一個連詞，而however既可以用作副詞，也可以用作連詞。（2）句although

3、引導(dǎo)讓步狀語從句，可以與though互換.(3)句中while引導(dǎo)讓步狀語從句，意為“雖然；盡管”,而句中while表示對比或相反的情況，意為“然而”。(4）句中as/though引導(dǎo)讓步狀語從句,且句子采用了倒裝語序，即將從句中的表語、狀語或動詞原形提至句首.1but和however的用法兩者都意為“但是；然而”，均表示轉(zhuǎn)折關(guān)系，但用法有所不同.（1）but用作并列連詞，常用來連接兩個并列的句子或一個句子中的兩個并列成分，表示強(qiáng)烈的對比、轉(zhuǎn)折,兩個并列成分之間可以用逗號隔開，也可以不用，但是but不能置于句首,并且后面不用逗號隔開。they rushed to the station but

4、 the train had left。他們匆忙趕到車站，但是火車已經(jīng)開走了。it is cold in winter here, but it is not hot in summer。這里冬天很冷，但是夏天不熱。名師點(diǎn)津but 作連詞還可用于“im sorry/ excuse me， but 。.句式中表示歉意，but本身沒有意義.im sorry, but i cant help you with the problem. 很抱歉,我不能幫你解決這個問題。(2)however用作副詞時，意為“然而；但是”，用以引出令人吃驚或表示對比的話語,可以放在句首、句中或句末，但通常有逗號與主句隔開

5、.you may be right。 however， i still want to do what i planned。你可能是正確的。但是，我仍然想做我計(jì)劃好的事情.your answer is wrong， however.不過你的答案是錯的。he hasnt arrived。 he may， however, come later.他還未到，不過，他可能晚一會兒來.名師點(diǎn)津however還可以用作連接副詞,意為“無論如何,不管怎樣”,后面常接形容詞或副詞，引導(dǎo)讓步狀語從句,該從句可放在主句之前或之后。you should try to get a good nights sleep,

6、 however much work you have to do. 不管你有多少工作要做，你都應(yīng)該好好休息一個晚上。he tried his best to solve the problem， however difficult it was. 他盡力解決這個問題，不管它有多困難.即時演練1(1)選詞填空：but， howeverhe is young but very experienced. however long it takes， im going to get the job finished。 later, however，_he changed his mind. he h

7、as 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. 他喜歡運(yùn)動，而他妻子則喜歡音樂。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）although和though都是引導(dǎo)讓步狀語從句的從屬連詞,意為“盡管，雖然”,一般情況下可以

8、互換。但although較正式，多用于句首,而though在非正式文體中較為普遍。although和though都不能和并列連詞but連用，但可以和yet或still連用。although he likes the girl， （yet/still） he cant marry her。雖然他喜歡這個女孩，但不能和她結(jié)婚.(2)though引導(dǎo)讓步狀語從句時可用部分倒裝形式，其用法相當(dāng)于as，把從句中的表語、狀語或動詞原形置于句首；若表語是可數(shù)名詞單數(shù)，前置時要省略不定冠詞.poor though/as he is, he lives a happy life。他雖然窮,但過得很幸福。chil

9、d though/as she is, she knows a lot.雖然還是個孩子，她卻懂得很多。much though/as he loved her, he didnt tell her.盡管他很愛她，但并沒有告訴她。try though/as i might, i couldnt lift the stone。盡管我試了，還是搬不動那塊石頭.名師點(diǎn)津though還可以作副詞，放在句末，用逗號和主句分開，相當(dāng)于however，意為“然而”。she said she would come； she didnt， though。她說她要來，然而她沒來.即時演練2（1)一句多譯他雖然成功,但

10、不驕傲。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（山東高考改編)i dont really like the author, although_i_have_to_admit his books are very exciting. 盡管我不得不承認(rèn)他的書

11、很振奮人心,但我并不是真的喜歡這位作家。expert_though/as_he_was,_he failed. 他雖是專家，但還是失敗了。3while的用法while作連詞時用法較多,主要有以下幾種含義。(1）while 作并列連詞表示轉(zhuǎn)折，強(qiáng)調(diào)前后句的對比關(guān)系，意為“然而”，此時while不能位于句首。waving ones hand is to say “goodbye。 nodding the head means agreement， while shaking it means disagreement。 揮手表示再見,點(diǎn)頭表示同意，而搖頭表示不同意。（2)while引導(dǎo)讓步狀語從句

12、，意為“雖然，盡管”，可以與although或though互換,此時while位于句首。while there are many different interpretations of our body language， some gestures seem to be universal。盡管我們對肢體語言有許多不同的理解,但有一些手勢似乎應(yīng)是通用的。while the internet is of great help， i dont think its a good idea to spend too much time on it.雖然網(wǎng)絡(luò)很有幫助，但我認(rèn)為在網(wǎng)上花太多時間不是個好

13、主意。(3）while引導(dǎo)時間狀語從句，意為“當(dāng)時候”,此時while相當(dāng)于during the time that 。.。,從句中的謂語動詞通常是延續(xù)性動詞的進(jìn)行時或狀態(tài)動詞，不可用短暫性動詞.i learnt a lot of french while i was in paris。 在巴黎時我學(xué)了很多法語.(4)while引導(dǎo)條件狀語從句,意為“只要,相當(dāng)于as long as，可放在句首或句中。while (as long as) there is life, there is hope. 留得青山在，不怕沒柴燒。即時演練3（1)寫出下列句中while的含義mary listened

14、to the radio while she had her supper. 當(dāng)?shù)臅r候while i understand your opinion， i dont agree with you. 雖然you like maths， while i prefer english。 然而_（2）完成句子（2016浙江高考改編)although/though/while_online_shopping_has_changed_ourlife，_not all of its effect have been positive.雖然網(wǎng)購改變了我們的生活,但并不是它的所有的影響都是正面的.while_l

15、i_ming_was_watching_tv,_he fell asleep. 李明看著電視睡著了。he went out for a walk while_i_stayed_at_home。他去散步了，而我卻待在家里。while_you_dont_lose_heart，_you can pass the coming examination. 只要你不灰心,你就能通過即將到來的考試.用適當(dāng)?shù)倪B詞填空1(2015安徽高考改編）although scientists have learned a lot about the universe, there is much we still don

16、t know。 2（2015北京高考改編）he is a shy man, but he is not afraid of anything or anyone. 3（2015福建高考改編)while/although the students came from different countries, they got along quite well in the summer camp。 4（2015湖南高考改編）although the job takes a great amount of time, most students agree that the experience

17、is worth it。5the idea for the new plan came to his mind, while he was devoted to his experiment in the lab. 6he said that it was so， but he was mistaken. 7however difficult life is, we must believe in ourselves and believe that we can do something well。8what the scientist said sounded strange, howev

18、er，_they made sense. 9im sorry， but i wont be able to come tonight. 10while i know shes not perfect， i do like her. 。完成句子1(2015天津高考書面表達(dá))the textbooks and dictionaries can be used as reference books while_the_magazines serve as reading materials.課本和詞典可以被用作參考書，而雜志作為閱讀材料。2（2015浙江高考書面表達(dá)）most of my class

19、mates wanted to go to a park while_i_had_an_idea of going to a nicer place.我的大多數(shù)同學(xué)想去一個公園,這時我有了一個去更好的地方的主意.3（2014天津高考書面表達(dá)）however， i think that you will quickly adjust to them although_the_weather_and_the_food_are_different_from_yours。 然而，我認(rèn)為你會很快適應(yīng)他們,盡管天氣和食物與你的不同.4（2014四川高考書面表達(dá))though_some_of_the_que

20、stions seem unfamiliar to me， they are easy to answer。 雖然一些問題看起來我不熟悉,但是他們很容易回答.5however_far_it_is，_i intend to drive there tonight. 不管有多遠(yuǎn)，我今晚也要開車到那兒去。6。 my room is small； however,_its_comfortable。 我的房間很小，卻很舒服。7while_we_were_arguing/quarrelling,_our head teacher came in. 當(dāng)我們正在吵架時班主任進(jìn)來了。8i like singin

21、g while_my_sister_likes_dancing. 我喜歡唱歌，而妹妹喜歡跳舞。短文改錯dear chris，im li ming， monitor of class one， senior one。 im glad to hear that you will come to our school as exchange student next term. i feel it an honor of us to study with you. now i have something to tell you about. firstly, with the climate changing, you should prepared enough clothes. then there are different kind of foods and snacks which will