Unit 4 课本知识预习+巩固练习（导学案）新四年级英语暑假自学课（join in外研剑桥·新教材）

四年级上册暑假自学课（join in外研剑桥） Unit 4 Let’s shop! 单元知识整合 一、必会词汇 zookeeper 动物园饲养员 bee 蜜蜂 early 在早期，在初期 fifty 五十 thirty-three 三十三 forty-four 四十四 thirteen 十三 seventy 七十 eleven 十一 thirty 三十 eighteen 十八 eighty 八十 nineteen 十九 sixteen 十六 sixty-six 六十六 twenty 二十 twelve 十二 hundred 一百 forty-three 四十三 friend 朋友，友人 flower 花，花朵 toy 玩具 pair 一双，一对 give 赠送，给予 box 盒；匣；箱 use 使用 holiday 假期，休假日 share 共享 money 钱 should 应当，应该 二、重点短语 go shopping 去购物 a pair of 一双；一对 how much 多少钱 flea market 跳蚤市场 三、核心句型 1. How much is a pair of trousers? 这条裤子多少钱？ 2. How much are three pairs of socks? 这三双袜子多少钱？ 3. I'd like to buy some flowers for my mum. 我想给我妈妈买些花。 4. I want to buy a new book. 我想买一本新书。 四、重难点突破 重难点1 How much is/are...?的用法 how much用来询问价格。当主语是单数时，用How much is...?；当主语是复数时，用How much are...?。答语分别用It's...和They're...。注意：a pair of...作主语时视为单数，用How much is...?。 How much is the toy? It's twenty yuan. （玩具多少钱？二十元。） How much are the flowers? They're fifty yuan. （花多少钱？五十元。） 【进阶训练】用is或are填空： (1) How much ___ the pair of shoes? (2) How much ___ the three books? 答案：is; are 解析：a pair of作主语视为单数，用is；three books是复数，用are。 重难点2 a pair of的用法 a pair of表示“一双；一对”，用来修饰成对出现的物品，如shoes、socks、trousers、shorts等。注意：trousers和shorts本身总是复数形式，需要用a pair of来计数。表示“两双/两对”时，用two pairs of。 a pair of trousers 一条裤子 two pairs of socks 两双袜子 【进阶训练】用pair或pairs填空： (1) I want to buy a ___ of shoes. (2) How much are three ___ of shorts? 答案：pair; pairs 解析：“一双”用a pair of，“三双”用three pairs of，pair变复数加s。 重难点3 11-100数字的拼写规律 11-12为特殊拼写（eleven, twelve）；13-19以-teen结尾，如thirteen, sixteen, eighteen, nineteen；整十数以-ty结尾，如twenty, thirty, fifty, seventy, eighty；21-99十位与个位之间加连字符，如thirty-three, forty-four, sixty-six；100用hundred。特别注意：fourteen和forty的拼写差异，以及fifty不是fivety。 sixteen 十六，eighty 八十 thirty-three 三十三，hundred 一百 【进阶训练】写出下列数字的英文： (1) 70 _________ (2) 12 _________ 答案：seventy; twelve 解析：70是整十数，以-ty结尾→seventy；12是特殊拼写→twelve。 巩固练习 一、看数字写英文 1. 13 → _________ 2. 20 → _________ 3. 50 → _________ 4. 80 → _________ 5. 100 → _________ 二、从方框中选词填空，将正确答案的序号写在括号里 1. money 2. pair 3. share 4. flower 5. give 1. I'd like to buy a ( ) for my mum. 2. How much is a ( ) of shoes? 3. You should ( ) your toys with friends. 4. I want to ( ) this book to my friend. 5. How much ( ) have you got? 三、单项选择 1. —How much ___ the toy? —It's twenty yuan. A. is B. are C. am D. do 2. —How much ___ three pairs of socks? —They're thirty yuan. A. is B. are C. am D. does 3. I want to buy ___ pair of trousers. A. a B. an C. two D. / 4. —___ is the flower? —It's eleven yuan. A. How many B. How much C. How old D. How 5. Fifty and thirty is ___. A. eighty B. seventy C. ninety D. sixty 四、情景交际 1. 你想问一条裤子多少钱，应该说： A. How many trousers do you have? B. How much is a pair of trousers? C. How much are a pair of trousers? D. What colour is the pair of trousers? 2. 售货员问你想要什么，你可以回答： A. Let's shop! B. Thank you very much. C. I'd like to buy a toy. D. Here you are. 3. 你想告诉朋友你想给他们买礼物，可以说： A. How much is the gift? B. I want to give a gift to my friend. C. I don't like gifts. D. Let me see. 4. 你想说“一百元”，应该说： A. ten hundred yuan B. one thousand yuan C. hundred yuan D. one hundred yuan 参考答案 重难点突破： 1. is; are 2. pair; pairs 3. seventy; twelve 巩固练习参考答案 一、1. thirteen 2. twenty 3. fifty 4. eighty 5. hundred 二、1. 4 2. 2 3. 3 4. 5 5. 1 三、1. A 2. B 3. A 4. B 5. A 四、1. B 2. C 3. B 4. D 1 学科网（北京）股份有限公司 $