必修3M2DevelopinganddevelopedcountriesGrammar

1、连词：连词：but, however, although, whilebut:1.连接两个并列分句连接两个并列分句Honey is sweet, but the bee stings.I ought to have helped her, but I ever could.2. 连接两个并列成分连接两个并列成分They see the trees but not the forest.He no longer felt disappointed, but happy and hopeful.后接状语后接状语He tried to save it, but in vain.He glanced

2、about, but seeing only the empty room.however1. 多插在句子中间多插在句子中间1) His first response was to say no. Later, however, he changed his mind.2) Sales are poor this month. There may, however, be an increase before Christmas.2.有时也放在句首或句尾有时也放在句首或句尾Ill offer it to Tom. However, he may not want it.You know all

3、 this as well as I do, however.although常用来引导让步状语从句常用来引导让步状语从句, 与与though同义同义Although it was barely four oclock, the lights were already on.He said they were married, although Im sure they arent.Hes very lovable although not at all tidy.While常用来引导状语从句，表示对比、让常用来引导状语从句，表示对比、让步、时间等。步、时间等。Some countries a

4、re rich, while others are extremely poor. I do every single bit of housework while he just does the dishes now and again. While I accept that hes not perfect in many respects, I do actually quite like the man.Strike while the iron is hot.I thought I heard him come in while we were having dinner.(but

5、)(although)(during)1. John saves his money,_ George spends all he gets. A. whether B. as C. though D. while2. Id love to come _ I cant make it till 8 oclock. A. so B. but C. however D. while 3. _ Im writing this, you can be doing something else. A. Before B. After C. Until D. While4. _times were cha

6、nged, Bursley was still Bursley. A. Whether B. Though C. Whenever D. however5. The south of the country grows richer, _the north grows poorer. A. whileB. neither C. if D. although6. _he is very old, he is healthy.A. As B. HoweverC. ThoughD. Whereas7. Britain is not mountainous, _Italy is. A. however

7、 B. whileC. althoughD. unless8. He was feeling bad. He went to work,_, and tries to concentrate.A. however B. soC. although D. while9. He promised to help me. _,he is busy and hasnt come.A. While B. AlthoughC. However D. Whether10. Shes been learning Italian for six years, _ she doesnt speak it very

8、 well. A. for B. so C. but D. as11.They wanted to charge $5000 for the car, _ we managed to bring the price down. A. but B. so C. when D. since12. Somebody wants you on the telephone. _no one knows Im here. A. For B. And C. But D. So13. Mr. Hall understands that _ maths has always been easy for him, it is not easy for the students. A. unless B. since C. although D. when14. Our bodies are strengthened by taking exercise. _, our minds are developed by learning. A. ProbablyB. Likely C. SimilarlyD. Generally 15. _she is young, she knows quite a lot. A. When B. H