Unit 3 A helping hand Grammar：并列复合句（同步课件）英语新教材沪教版五四学制七年级下册

语法单元 Unit3 A helping hand 教师______ 学校______ 并列复合句 什么是复合句？ 复合句是指由一个主句和一个或多个从句构成的句子。主句是全句的主体部分，从句则是全句的一个句子成分。从句在句中可以充当主语、宾语、表语、定语、状语等。 What she says is not important. 主语从句 Our teacher’s idea is that we should do our homework right away. 表语从句 I don’t think he’s interested in it. 宾语从句 I met a girl who knew your sister. 定语从句 She can’t come to the meeting because she is ill. 状语从句 并列复合句 并列复合句是由并列连词把一个或多个简单句与一个或多个复合句连接起来的句子。也就是说并列句中的两个分句中又内含从句，或者说就是含有复合句的并列句。 1. 并列复合句的基本结构 简单句＋并列连词＋简单句。 并列连词 作用 含义 and 表并列、递进或顺承关系 和；并且 表示结果 用于“祈使句， and+陈述句” 结构 but 表转折关系 但是 yet 表转折关系 但是 while 表转折关系 然而 or 表选择关系 或者 以祈使句为条件的相反假 设 否则，用于“祈使句， or+陈述 句”结构 2. 并列连词前后简单句之间的关系 5 并列连词 作用 含义 so 表因果关系 所以 for 表示原因 因为 续表 6 并列连词词组 用法 例子 both… and… (两者都……) 连接两个并列主语时，谓语动词用复数形式。 Both Mary and I are good at math. 玛丽和我都擅长数学。 not only… but (also)… (不仅……而且……) 连接两个并列主语时，谓语动词的单复数形式由就近的主语决定。(就近一致) Not only you but also he wants to buy the pen. 不仅你还有他都想买这支钢笔。 neither… nor… (既不……也不……) Neither you nor I am wrong. 你和我都没错。 【易错提醒】(1)“祈使句＋and＋陈述句”结构中，前面的祈使句相当于if引导的条件状语从句，此时and意为“那么”。 Go straight, and you will see a yellow building. ＝ If you go straight, you will see a yellow building. 直走，你会看到一座黄色的建筑。 (2)“祈使句＋or＋陈述句”结构中，前面的祈使句相当于If… not…，此时or意为“否则”。 Keep quiet, or Mom will be angry. ＝ If you don’t keep quiet, Mom will be angry. 保持安静，否则妈妈将会生气。 1.Don’t be afraid to make mistakes,　 　 you’ll never really learn the language.  2.He has failed many times,　 　 he never loses heart.  3.—Work hard,　 　 your dream will come true.  —Well,I will do my best. or but and 1.　 　 there are different kinds of challenges,my life is becoming better and better.  2.Don’t get close to the underground 　 　 it stops.  3.The weather is too hot.Meat quickly goes bad 　 　 it is put into the fridge.  4.Jason will go to visit his grandparents 　 　 he finishes his work this weekend.  Although/Though until unless if 1.Keep trying， ________ you might surprisingly find hidden abilities within you.( ) C A. but B. or C. and D. since 2.I saw a good film， ________ I can't remember its name.( ) D A. so B. or C. for D. but 3.Take your first step, ________ you'll never be on the road to achieve yourself.( ) A A. or B. while C. till D. and 11 4.You can't decide whether or not you like something until you try it， ________ it's important to try something new.( ) C A. but B. or C. so D. if 5.She didn't go to school yesterday， ________ she had hurt her legs while climbing the mountain.( ) D A. but B. however C. or D. for 6.________ Anna ________ her brother like listening to soft music.( ) A A. Both； and B. Neither； nor C. Either； or D. Not only； but also 7.—I'm planning to climb Mount Huang this summer. Would you like to come along? —Wow! That would be exciting ________ challenging. I'm in!( ) A A. as well as B. as good as C. as long as D. as far as 12 8. The man was so tired, _____ he still went on working. so B. but C. or D. and 9.Hurry up, _____ finish your homework. or B. but C. and D. while 10. I like the MP3, _____ it’s too expensive. but B. so C. and 11.The box was too heavy for me to carry, _____ I pulled it into my room. A. so B. and C. but D. or see you again $$