1、Unit 3 Buying and Selling【本讲教育信息】一. 教学内容：Unit 3 Buying and Selling （L21L24）1. 重点单词。n. bill purse coinheart cent storybook experience push-pin bulletin board magazine lady journal madam employeev. afford deal rent own adj. afraid safe elementary 2. 重点短语。any other deal with elementary school Junior Hi
2、gh School 3. 交际用语：购物。4. 重点语法。（1）条件状语从句（2）冠词的用法二. 重点难点解析及词语辨析：1. eat.for lunch 午餐吃（ L21）吃饭一般用 have，美语多用 eat。have breakfast 吃早餐have lunch 吃午饭have supper 吃晚饭have dinner 吃正餐have meal 吃便餐一日多餐吃什么，通常用“havefor+三餐”表达。for 意为“作为”。I have two eggs for breakfast. 我早饭吃两个鸡蛋。What do you eat for lunch? 你午餐吃什么？2. What
3、 is it for? 它是干什么用的？（L21）for “为了，为”，表目的。Please send the letter for me. 请替我寄走这封信。I like to have a hamburger for lunch. 我午饭想吃一个汉堡包。拓展：介词 for 的其他意义及用法： 表示目的地，“到去”。He will leave for Shanghai tomorrow. 他明天要去上海。 表示原因，“由于，因为”。Mary cried for happiness.玛丽喜极而泣。 对于，就而言It is hard for me to carry the box.对我来说搬那个
4、箱子很难。Running is good for health. 跑步对健康有益。 表示时间、距离，“有（多久，多远）”。Lily has been in China for two years. Lily 已经在中国待了两年了。3. You can do your homework as you ride. 当你骑自行车时就可以做作业。as“当时”，引导时间状语从句， =when / while。Im doing my homework as youre talking.你说话的时候我在做作业。拓展： 被看作；被认为是LuXun is famous as a writer. 鲁迅作为一名作家
5、而出名。 as conj. 与一样He can run as fast as I.他能跑得和我一样快。 诸如I like small animals such as cats and dogs.我喜欢诸如猫、狗一类的小动物。4. I dont think it would be safe to do my homework on a bicycle. （L21）我认为骑在自行车上做作业不安全。I dont think . 这是否定前置。当 think,believe 等词后带有宾语从句，其意义表示否定时，只在 think 或 believe 前变否定即可。例如：I dont think he
6、can come today.我认为他今天不能来了。另外，从句主语 it 是形式主语。而真正主语则是后面的动词不定式。It took me half an hour to do the work.做这项工作用了我半小时。I found it was not easy to learn the language.我发现学好这门语言并不容易。5. Ill take it. 我会买下它。take “买下”， = buy take 还有其他用法： 带走，拿走Please take your football away. 请把你的足球拿走。 吃，喝，服用Please take this medicine
7、 after meals. 请饭后服药。 乘 He takes a bus to go to school every day. 他每天乘公共汽车上学。6. do with“处置，处理”，多用于疑问句式。Whatdo with？ Howdeal with?What did you do with your worn-out clothes?你把你那些穿旧了的衣服怎么处理了？How will you deal with the problem?你怎么处理这个问题呢？7. in order to 为了起见；以便In order to catch the early bus, she gets up
8、 very early.为了赶早班车，她起的很早。in order to do sth. = so as to do sth, in order to 可位于句首，也可位于句中，引导目的状语。He bought an English-Chinese dictionary in order to look up the words he doesnt know.他买了本英汉字典，以便查找他不认识的单词。8. something useful 有用的东西 (L23)something 为不定代词，用形容词修饰的时候应将形容词后置。另外，to do 不定式也可修饰不定代词，放其后边。somethin
9、g good to eat 一些好吃的东西9. .a magazine called The Ladies Home Journal. （L23）一本叫妇女家居的杂志。句中 called 为过去分词，作后置定语，表被动，修饰前面的名词 magazine。called=named I have a good friend called/named Peter.我有一个叫彼得的好朋友。10. There is a push-pin holding up this piece of paper.这里正有一枚图钉钉这张纸。There is a sb.(sth.)doing sth. 意为“某人（某物）
10、正在干什么”。There is a truck collecting rubbish.有一辆卡车正在收集垃圾。（There is a truck. It is collecting rubbish.）There are some children playing games.=There are some children. They are playing games.有一些孩子在玩游戏。11. Shopping购物交际May/Can I help you?我能帮你吗？How many/much would you like?你想买多少？What colour/size/kind would
11、 you like?你想买什么颜色的/什么尺寸 /哪种？I want/Id like.我想买How much is it/are they?它（们）多少钱？Thats too expensive ,Im afraid.恐怕太贵了。Do you have any other colours/sizes/kinds?你还有其他颜色/尺寸/种类吗？Thats fine, Ill take it.很不错。我买了。12. 条件状语从句主句用一般将来时，从句一般现在时表将来。（主将从现）If you join our course, youll learn all the business lingo y
12、ou need.如果你参加我们的培训班，你就能学会你所需要的所有商务术语。13. 冠词的意义及用法。冠词不能单独使用，用于名词之前，用来说明名词所指的事物的意义。冠词分为不定冠词（a,an）和定冠词（the）两类，不定冠词表示某一类人或事物中的“任何一个”，只能用在可数名词前，有泛指的意思，相当于汉语中的“一”，定冠词 the 是指特定的人或物，相当于 this 和 that。This is a book. 这是一本书。Its an English book. 这是一本英语书。注意 an 用在第一个音素为元音的单词前面。Please pass me the book on the table.
13、请把桌上的那本书递给我。用法：1. 不定冠词（a, an ）的用法：用法 例词或例句用于可数名词的单数形式前，指人或事物的某一种类。This is a ruler. He is a student.指某人或某物，但不具体说明是何人或何物。 There are seven days in a week.We have three meals a day.表示“一个”，但数的概念没有 one 强。 There is a tree on the hill.He has an interesting book.指某类人或事物中的任何一个。 An elephant is bigger than a ho
14、rse.A car runs faster than a bike.用于某些固定词组中。 a lot of, a bit, have a rest,have a cold, a kind of, a piece of,have a good time.2. 定冠词 the 的用法 用法 例词或例句表示世界上独一无二的东西。 the sun, the earth, the moon特指某（些）人或事物。 The bike under the tree is mine.表示双方都知道的事或物。 Dont tell him the news.They will meet at the school
15、gate.特指上文提到过的人或事物。 I bought a book. The book was written by LuXun.A man went into the room. The man carried a box.用在序数词和形容词最高级前。 Jim is the first one to get to school.Mike is the tallest boy in our class.用在一些习惯用语中。 in the morning/afternoon/evening,on the right/left, all the time,in the middle of, at the same time 学优:中考，网
