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英语七年级上册Unit 9 My favorite subject is science. 学案(含答案)

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英语七年级上册Unit 9 My favorite subject is science. 学案(含答案)

单词听写: 学习目标: 1. 掌握与学科相关的名词及形容词; 2. 掌握由what, why, who, when引导的特殊疑问句所表达的具体含义; 3. 学会如何用特殊疑问句进行提问并回答。 词汇 science, favorite, because, free, cool, on Friday, useful, from…to..., finish, lesson, strict, for 语法 1. 特殊疑问句:是对句子中的某一部分内容提出疑问的问句,是指以what, who, when, where, why, how等开始的疑问句。特殊疑问句与一般疑问句不一样,它不能用yes或no回答。2. 结构:倒装结构:疑问词+一般疑问句(语序)?陈述语序:疑问词+谓语+宾语/状语?3. 用陈述语序的结构往往是对主语进行提问,这时疑问词作句子的主语。 知识梳理: 1. science /'sa??ns/ n. 科学 用法 例句 (1) science 为不可数名词 He?developed?an?interest?in?science. (2) 当它指理科的一门学科时,是可数名词 Science is my favorite subject. (3) scientist意为“科学家” Edison is a great scientist. 【即学即练】 翻译:他擅长计算机科学。 ____________________________________________________________ 【参考答案】He is good at computer science. 2. favorite /'fe?v?r?t/ adj. 最喜欢的,最喜爱的 用法 例句 (1) favorite相当于like…best Chemistry was her favorite subject.= She likes chemistry best. (2) favorite 作名词用,意为“最喜欢的人或物”,其复数形式是favorites These books are great favorites of mine. 【即学即练】 根据汉语提示完成句子。(每空一词) 苹果和梨子是我最喜欢的水果。 Apples and pears _________ my ___________. 【参考答案】are; favorites. 3. because /b?'k?z/ conj. 因为 用法 例句 (1) 其后接从句,陈述原因或理由 — Why do you love science?? Because it is very useful.? (2) because of 为介词短语,意为“因为”,其后接代词、名词或名词短语 The?dog?was panting?because?of the?hot?weather. 【即学即练】 用because和because of填空 1. — Why are you late for school today? — ____________ the heavy traffic. 2. I have bad news for you. I can’t join in your birthday party ___________I have too much work to do tomorrow. 【参考答案】1. Because of; 2. because 4. free /fri:/ adj. 空闲的 用法 例句 (1) be free意为“有空的” Sorry, I’m not free today.? (2) free 还可译为“免费的” Is the book for free or for a charge?? (3) freedom n. 意为“自由” A little?freedom?is?all?I?ask.? 【即学即练】 翻译:你这个周末有空吗?我们去逛街吧! __________________________________________________________________ 【参考答案】Will you be free this weekend? Let’s go shopping. 5. cool /ku:l/ adj. 妙极的;酷的 用法 例句 (1) 系动词+cool意为“......很酷” —Shall we go boating?? —Sounds cool. (2) cool还可译为“凉爽的” It is cool today.? 【即学即练】 翻译:那个歌星实在很棒。 _________________________________________________________________ 【参考答案】That singing star is really cool. 6. on Friday 在星期五 用法 例句 on常用在表示星期几或具体某一日及某一日的上午、下午或晚上的名词前。但当星期名称前有this, that, next, last等词修饰时,其前不能再用介词on I can go to the shop this Friday.? 拓展:星期名词是专有名词,首字母要大写。在表达日期时,还会用到缩写形式。 Monday 星期一 Mon. Tuesday 星期二 Tues. Wednesday 星期三 Wed. Thursday 星期四 Thurs. Friday 星期五 Fri. Saturday 星期六 Sat. Sunday 星期日 Sun. 【即学即练】 翻译:我最喜欢周一, 因为周一我们有一节体育课。 ________________________________________________________________ 【参考答案】I like Monday best, because we have a P.E. lesson on Monday. 7. useful /'ju:sf?l/ adj. 有用的;有益的 用法 例句 (1) be useful for (doing) sth.意为“对......是有用/益的” A dictionary is useful for English study. (2) use v. & n.意为“使用;用途” You should learn to use the computer. 【即学即练】 用所给词的适当形式填空 Many adults learn English, because it is _______ (use) for their work. 【参考答案】useful 8. from... to... 从......到...... 用法 例句 用来表示时间、地点等范围 We go to school from Monday to Friday.? 【即学即练】 翻译:从你家到学校有多远? ________________________________________________________________ 【参考答案】How far is it from you home to school? 9. finish /'f?n??/ v. 完成 用法 例句 finish doing sth.意为“做完某事” Jim usually finishes doing his homework before 8:00. 【即学即练】 翻译:你今天必须完成这项工作。 __________________________________________________________________ 【参考答案】You?must?finish?this?work?today. 10. lesson /'les(?)n/ n. 课,一节课 用法 例句 lesson为可数名词 I missed a lesson yesterday.? 辨析:class & lesson 相同 不同 例句 class 均含“课”之意 从“班级”引申指学生在一起上课,表示“(一节)课”,不强调内容 My violin class starts at 4:30 p.m. every day. lesson 主要指教材中的一课或每次授课的单位时间,强调内容 Which lesson will we have tomorrow? 【即学即练】 翻译: 1. 咱们读第一课吧。 ______________________________ 2. 我能帮你学习功课。 ______________________________ 【参考答案】1. Let's read the first lesson. 2. I can help you with your lesson. 11. strict /str?kt/ adj. 严格的 用法 例句 (1) be strict with sb.意为“对某人很严格” The Greens are very strict with their children. (2) be strict in/ about意为“对某事要求严格” Students should be strict in their subjects. 【即学即练】 翻译: 1. 这位父亲对他的子女很严格。 _____________________________________ 2. 老师对他们的功课很严格。 _____________________________________ 【参考答案】1. The father is strict with his children. 2. The teacher is very strict in their homework. 12. for /f?:(r)/ prep. 为,为了;因为 用法 例句 (1) thank sb. for意为“因……而感谢某人”,for后接名词、代词或动名词,表感谢的原因或内容。 Thank you for helping with my English. (2) for+一段时间意为“多长时间”,表示某事持续多长时间。对其提问要用 how long — How long will you stay in Beijing? — For about three days. 【即学即练】 1. The chemicals in the vegetables and fruit are bad ________ our health. A. from B. with C .of D. for 2. We are planning to have a surprise party ________ her fifteenth birthday. A. at B. in C. for D. with 【参考答案】DC 教材知识点讲解 1.My favorite subject is science.我最喜欢的学科是科学。 本句是简单句。my favorite subject是主语,is是系动词,science作表语。本句可以变化为:I like science best.我最喜欢科学。 注意:favorite相当于 like...best。 favorite adj. “最喜欢的,特别喜欢的”,也可以写作 favourite。 Sunday is our favorite day. We can go to the park. 星期天是我们最喜欢的一天。我们可以去公园。 知识延申: favorite n. “最喜欢的人或物”,其复数形式是favorites。 These books are my favorites. 这些书是我最喜欢的。 subject n.学科;科目 How many subjects do you learn at school? 你在学校学习多少门学科? 知识延申: (1)subject n. 主题 The subject of the poem is friendship. 这首诗的主题是友谊。 (2)subject n. 主语 I don't know the subject of the sentence. 我不知道这个句子的主语。 【例1】 I like apples best.(选出意思相同的一项) A.I like apples more. B.My favorite vegetable is apples. C.My favorite fruit is apples. D.I don't like apples. 解析 原句意为“我最喜欢苹果”。A项意为“我更喜欢苹果”,不符合句意,排除;B项意为“我最喜欢的蔬菜是苹果”,苹果不属于蔬菜,排除;C项意为“我最喜欢的水果是苹果”,与原句句意相符;D项意为“我不喜欢苹果”,与原句句意不符,排除。故选C项。 答案 C 句意 我最喜欢苹果。 【例2】 —What ______ do you like best? —Music. A.color       B.food C.sport D.subject 解析 根据答语“音乐”可知是一门课程,故选D项。 答案 D 句意 ——你最喜欢哪门课程?——音乐。 2. Why do you like P.E.? 你为什么喜欢体育? why adv. “为什么”,用于询问原因,答语常用because来引导。 —Why is he crying?他为什么哭? —Because he can't find his mother. 因为他找不到他妈妈。 Why not+ v....?为什么不做……呢? Why not go with me? 为什么不和我一块去呢? why引导的特殊疑问句,有时相当于what...for句式,二者可以转换。 Why does he come here?=What does he come here for?他为什么来这儿? 【例题】 —______ does he want to join us? —He wants to learn swimming. A.What B.How C.Why D.Where 解析:根据答语“他想学习游泳”可知问句询问原因,故用why提问。 答案:C 3.Because it's fun.因为它有趣。 本句是由because引导的句子,常在复合句中作原因状语从句。 She likes math because it's interesting. 她喜欢数学,因为它有趣。 because conj. “因为”,后常接句子,回答why引导的特殊疑问句。because(因为)和so(所以) 不能同时用在句子中,二者只能选其一。 —Why do you want to go to Beijing? ——你为什么想去北京? —Because I want to visit the Great Wall. ——因为我想去参观长城。 知识延申: because of “因为,由于”,是一个短语介词,后接名词或名词短语。 He can't go to school because of his leg. 由于他的腿他不能去上学。 【例题】 We don't go to school today ______ it's Sunday. A.because B.because of C.or D.and 解析 A项意为“因为”,后接句子;B项意为“因为”,后接名词或短语;C项意为“或者,否则”;D项意为“和”。根据句意可知,前后句子是因果关系,故需用“因为”,排除C、D两项;“it's Sunday”是一个句子,所以用because,排除B项。故选A项。 答案 A 句意 我们今天不去上学,因为今天是星期天。 4.I like Monday because I have P.E.and history. 我喜欢星期一,因为我上体育课和历史课。 Monday n.星期一 I have P.E.on Monday. 我周一上体育课。 (1)一周有七天。在西方国家,人们一般把星期日作为一周的第一天,星期一为第二天,以此类推。星期六为一周的第七天,即最后一天。 Tuesday is the third day of a week. 星期二是一周的第三天。 (2)星期名词是专有名词,首字母都要大写。在表达日期时,还会用到星期名词的缩写形式: Sunday→Sun.,Monday→Mon.,Tuesday→Tue./Tues.,Wednesday→Wed./Weds.,Thursday→Thur./Thurs.,Friday→Fri.,Saturday→Sat. (3)提问星期时,常用句型:What day is it today? —What day is it today?今天是周几? —It's Sunday today.今天星期天。 (4)有时候星期名词后面加上“s”,通常指 “每个星期几”,用于一般现在时态中,表示经常性的动作或状态。 She helps me with my English on Sundays. 每个星期天她都帮我学习英语。 (5) “在星期几”、“星期几的上午/下午/晚上”,要用介词on。当星期前面有this,that,last,next等词修饰时,通常不再用介词。 We have music on Monday afternoon. 我们星期一下午上音乐课。 【例1】 —______ is it? —Friday. A.What time     B.When C.What day D.What color 解析 A项意为“几点”;B项意为“何时”;C项意为“星期几”;D项意为“什么颜色”。根据答语“星期五”可知用what day 提问。故选C项。 答案 C 句意 ——星期几?——星期五。 【例2】 —What day is it today? —______ A.It' s Monday. B.Today is September. C.It's September 4th. D.On Friday. 解析 “What day is it today?”是询问星期几的常用句型。B项意为“今天是九月”;C项意为“今天是9月4日”;D项意为“在周五”,均与句意不符,排除;A项意为“今天是周一”,符合题意。故选A项。 答案 A 句意 ——今天是星期几?——是周一。 【例3】 What are you going to do ______ this Sunday? A.in B.at C.to D./ 解析 当星期前面有this,that,last,next等词修饰时,通常不再用介词。故选D项。 答案 D 句意 这个星期天你打算干什么? 特色讲解: 特殊疑问句 一、基本用法 特殊疑问句是对句中某一部分内容提出疑问的问句,是指以what, who, when, where,?why, how等开始的疑问句,也称wh- 疑问句。特殊疑问句与一般疑问句不一样,它不能用yes或no回答。 二、结构 1. 倒装结构:疑问词+一般疑问句语序? 2. 陈述语序:疑问词+谓语+宾语/状语? 用陈述语序的结构往往是对主语进行提问,这时疑问词作句子的主语。 三、疑问词小结 1. 什么都要问的what 疑问代词what的基本含义是“什么”,通常用来询问姓名、物品、数学运算结果或什么时间做什么事等。 — What’s your favorite subject? 你最喜欢的学科是什么? — My favorite subject is English. 我最喜欢的学科是英语。 2. 谁见谁爱的who Who是疑问代词,意为“谁”,用来询问“人”。在句中可作主语、宾语或表语。当who作主语时,句子要用陈述语序,谓语动词多用单数形式。 Who do you want to help? 你想帮助谁? Who likes playing the guitar? 谁喜欢弹吉他? 3. 一探究竟的why why是疑问副词,意为“为什么”,多用来询问原因,回答时多用连词because引导的句子,意为“因为......”。 — Why do you like Beijing Opera? 你为什么喜欢京剧? — Because I think it is very interesting. 因为我认为它很有趣。 拓展:以why开头的否定疑问句多表示建议或请求。 ? Why don’t you go to work a little earlier? 你为什么不早点儿去上班? 4. 爱问时间的when when是疑问副词,意为“什么时候,何时”,回答when引导的特殊疑问句,可以是笼统或具体的时间,而回答what time引导的问句,则要说出具体的时间点。 — When is your mother's birthday? 你妈妈的生日是什么时候? — It on September 20th. 是在9月20日。 — What time is it? 几点了? — It's 10:20. 10点20。 【即学即练】 按要求转换句型 1. He likes art because it’s fun. ? does he ? art? 2. I have music on Friday. ? ? you have music? 3. My English teacher is Mr. Liu. ___________ ____________ your English teacher? 4. My favorite color is blue. ___________ your favorite ___________? 5.Our book sale is?at three in the afternoon.? (对划线部分提问) ________ ________ ________ book sale? 【参考答案】1. Why, like; 2. When do; 3. Who is; 4. What’s; color 5. When is your 6.Why do you like?? 7.Helen's favorite subject 当堂练习 单项选择 1. — is her favorite subject? — Her favorite subject is art. A. Why B. When C. Who D. What 2. — is your head teacher? — Mr. Smith. A. When B. What C. Why D. Who 3. — Why do you like English? — it's very interesting. A. So B. Because C. And D. But 4. — Who likes music in your class? — Sally . A. do B. does C. is D. are 5. — ? — It's Tuesday. A. What’s the time B. What’s the date C. What day is it today D. Is it Monday 6. — Why ? he like pandas? — Because it’s cute. A. is B. are C. do D. does 7. — ? your father’s job? — He’s a teacher. A. What B. How C. Who D. What’s 8. How old ? your cousin brothers? A. are B. am C. is D. were 9. When does your school ?? A. over B. finishes C. end D. begins 10. — ?? — At a hotel. A. When does Scott work B. When Scott works C. Where does Scott work D. Where does Scott works 【参考答案】1-5 DDBBC 6-10 DDACC 当堂检测: 一、单项选择 1. — Why do you like science? — it’s difficult interesting . A. So; but B. Because; and C. So; and D. Because; but 2. — are you going to buy for your father for Father’s Day ? — A T-shirt. A. What B. When C. Where D. How 3. — does your cousin usually go to work on foot ? — He says it’s good for his health. A. Where B. When C. Why D. How 4. — What’s the of the red shoes? — $56. A. color B. price C. number D. weight 5. — is your father? — He’s forty. A. When B. How old C. What D. How 6. — do you like Monday? — We have music on Monday. You know, I like music very much. A. What B. Why C. When D. How 7. — is your school trip? — It is on December 19th. A. How B. What C. When D. Where 8. — Jack, let’s go now. — OK. We’ll be there in _______ hour.? A. a ?????? ?????????????B. an C. the ??? ???????????? D.?不填??? 9. After school, Bill plays basketball _______ 45 minutes with his classmates. A. to??? ?????? ?????? B. of??? ?????? C. for??? ????? ?????? D. from??? 10. Anna doesn’t eat ice-cream _______ she doesn’t want to be fat. A. after ? ????? ?????B. but????? C. because ? ? ? D. so 参考答案 一、单项选择 1-5 DACBB 6-10 BCBCC 词汇 科学 science 最喜欢的 favorite 因为 because 空闲的 free 酷的 cool 在星期五 on Friday 有用的 useful 从......到...... from…to... 完成 finish 课 lesson 语法 1. 特殊疑问句:是对句子中的某一部分内容提出疑问的问句,是指以what, who, when, where, why, how等开始的疑问句。特殊疑问句与一般疑问句不一样,它不能用yes或no回答。2. 结构:倒装结构:疑问词+一般疑问句(语序)?陈述语序:疑问词+谓语+宾语/状语?3. 用陈述语序的结构往往是对主语进行提问,这时疑问词作句子的主语。 学生总结: ______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 综合练习 一、单项选择 1. — What’s your favorite ? — Ping-pong. A. food B. fruit C. sport D. subject 2. Mr. Li often basketball his students after school, so his students like him very much. A. plays; and B. plays; with C. wants; for D. wants; to 3. My parents the housework. A. are busy with B. are busy in C. are busy to D. are busy for 4. Peter can play the guitar, he can’t play it very well. A. because B. so C. and D. but 5. Our science class is Monday Wednesday. A. from; to B. at; to C. from; for D. in; about 6. I often play soccer two hours in the afternoon. A. with B. on C. for D. to 7. —What’s your favorite ? —Physics. It’s interesting and useful. A. job B. vegetable C. fruit D. subject 二、单词拼写(根据中文提示拼写单词) 1. If you learn even a little English, you will find it ?(有用的). 2. He (完成) his homework at 6 p.m. every day. 3. John looks ?(酷的) in the new windbreaker. 4. Miss Yang likes reading on S (星期日). 5. David has some Chinese (功课) every week. 【参考答案】 一、单项选项 CBADACD 二、单词拼写(根据中文提示拼写单词) 1. useful 2. finishes 3. cool 4. Sunday 5. lessons

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