Unit 2 Topic 3 Section A 英语九年级上学期.pptVIP

Unit 2 Topic 3Section A  Teaching aims and demands 1. Learn some new words: reduce , plastic ,encourage, suppose, nod, agreement, shake , 2、Learn some phrases: not only……but also……, be suppose to do sth. 3 Learn the compound sentence with “or” ,”and”, “but” and “while”. 3. Learn to talk about the protection of environment. Lisen to the tape and answer my questions 1. What is Jane’s main job? 2.What are “the three Rs”? Work alone Fill in the blanks according to 1a. 1 The journalist is ___________ Kelly about _______________________. 2 Kelly’s main job is ______________________________ . 3 We should use _____________ and reuse _____________ at home. 4 At school the students can collect waste paper and _________. 5 Recycling is an excellent way not only to ______________________ but also to ____________. 重点讲解 1.Work for 为 …而工作 We should work for peace. 2.We sort them so that they can be recycled. sort 作名词,相当于kind 种类； 作动词有整理,归类,分拣之意 3.not only……but also……不但……而且…… 可以连接两个主语，谓语，表语和宾语 注：连接主语时，动词与邻近的主语在人称、数上保持一致，即“就近原则”。 eg：Not only you but also I am right. 4.It is/was +adj.+of/for sb. to do sth. 句型中的it是形式主语，真正的主语是to do sth. 当形容词用来描述人的性格,特征,品质时,通常 用of,这类形容词词有good, kind, nice, wise, clever, foolish,right, wrong, careful等. eg: It’s very nice of you to help me. 当形容词用来描述事物的性质,特征时,通常选用for. 这类形容词有easy, difficult, hard, important, necessary, possible, interesting等. eg: It’s very important for everyone to protect the environment. 5. Everyone is supposed to do that. surppose 意为“认为，猜想”。 eg: She supposed that he was dead. be supposed to 意思是， “应该, 理应,”与should同义. eg: Teachers are supposed to know a lot. be supposed to用于否定句,意思为允许. eg: You are not supposed to smoke here. 这里不允许吸烟. 2.Work alone 连词“or” ,”and” “but” “while”连接的并列句 (1)表示并列关系，用and…… (2)表转折，用but…… (3)表示“对比” 用while ……意为“然而” 注：while 表示并列时的含义是“同时”。 eg : She is working while I’m having lunch (4)表选择，用or… 意为“否则” 注：用“or” 连接并列句时，两简单句之间要用“，