Unit 13SectionA Grammar Focus-4c) (课件)2024-2025学年人教版九年级英语全册

R 九年级全一册 Grammar Focus-4c Unit 13 We’re trying to save the earth! 1 Learning objects (学习目标) By the end of the class, you will be able to … 1. Learn curriculum words and useful expressions: take part in, afford, turn off, reusable, pay for... 2. Summarize grammars about Present progressive, used to, Passive voice, Present perfect, Modal verbs. 用括号内所给动词的适当形式填空并说出填空部分涉及哪种语法内容。 1. Look! Kate _ (dance) with her friends under the tree. 2. My aunt _ (work) as a nurse since 10 years ago. She is good with patients. is dancing has worked Present progressive Present perfect 3. His father used to _ (stay) at home, but now he is used to _ (take) a walk after dinner. 4. Mobile phones mustn’t _ (bring) to the classroom in our school. 5. The computer _ (buy) last year. stay taking be brought was bought used to Modal verbs Passive voice Grammar Focus We’re trying to save the earth. Present progressive The river used to be so clean. used to The air is badly polluted. Passive voice No scientific studies have shown that shark fins are good for health. Present perfect We should help save the sharks. Modal verbs 现在的 一、现在进行时 表示现在正在进行或发生的动作,也表示现阶段或当前一段时间内正在进行的动作。 1.概念 2.基本结构 3. 标志词 now, at this time, these days, at the moment, listen, look等 be动词 (am/is/are) + 动词-ing形式 1. 我们现在正在河里游泳。 2. 听!琳达正在唱一首动听的歌。 3. 近来,鲨鱼正面临着艰难的生存环境。 We are swimming in the river now. Listen! Linda is singing a beautiful song. Sharks are facing hard living conditions these days. 翻译下列句子。 【拓展】 一些表示位置移动的动词,如 go, come, leave, arrive等,常用现在进行时表示将来。 例句:明天杰克将前往上海。 Jack is leaving for Shanghai tomorrow. 下列动词通常不用于现在进行时: ① 表示感觉或感情的动词,如smell, taste, seem, like, love, wish, hope等; ② 表示记忆、理解或决定等的动词,如remember, understand, decide, believe等﹔ ③ 表示拥有或占有的动词,如have, belong, own等。 二、现在完成时 表示过去发生的动作对现在造成的影响或动作从过去某个时间开始,一直延续到现在(包括现在在内)并可能继续延续下去。 1.概念 2.基本结构 3. 标志词 recently, since... , for ... , in the past few years等 have/has +动词的过去分词 在现在完成时中,come, go, arrive, leave, buy 等非延续性动词不能与表示一段时间的时间状语连用。若与表示一段时间的时间状语连用,非延续性动词要转换成相应的延续性动词或短语。常见的词如下: buy have borrow keep join be a member of finish be over die be dead leave be away begin be on fall asleep be asleep open be open 【拓展】 比较现在完成时与一般过去时: 现在 5年 过去 has been a teacher 将来 例句:他当老师5年了。(5年前到现在一直是老师) He has been a teacher for 5 years. 现在 5年 过去 worked as a teacher 将来 例句:他当了5年老师。(现在不是老师了) He worked as a teacher for 5 years. 三、被动语态 表示主语是谓语动词动作的承受者,其基本结构为“be动词 + 及物动词的过去分词”。 1. 概述 2. 构成 时态 被动语态的结构 am/is/are+及物动词的过去分词 was/were+及物动词的过去分词 will/shall be+及物动词的过去分词 一般现在时 一般过去时 一般将来时 am/is/are+being+及物动词的过去分词 现在进行时 have/has been十及物动词的过去分词 现在完成时 例句:所有的习题必须在放学前做完。 All the exercises must be finished before school is over. 含情态动词的被动语态的结构为“情态动词+be+及物动词的过去分词”。 【拓展】 3. 主动语态转化为被动语态的步骤 将主动语态的宾语变成被动语态的主语。 第一步 第二步 第三步 把主动语态中的谓语动词变为“be动词+及物动词的过去分词”。 把主动语态中的主语变为被动句中介词 by的宾语。 4. 不能使用被动语态的情况 (1) 连系动词get, turn, seem, look, sound等后接形容 词作表语时; (2) there be句型; (3) 主动句中宾语是反身代词时; (4) 不及物动词或词组,如:appear, disappear, last, happen, take place, come about, break out等。 “used to十动词原形”,意为“过去常常……”,表示过去习惯性的动作或状态,现在已不存在。 1. 概述 四、used to的用法 2.句式结构 主语+used to+动词原形+其他. 主语+didn’t use to+动词原形+其他. 主语+usedn’t to+动词原形+其他. Did+主语+use to+动词原形+其他? Used+主语+to+动词原形+其他? 一般疑问句 反意疑问句 附加疑问句部分用“did/didn’t+主语”或“used/usedn’t+主语” 否定句 肯定句 表示说话人对所述动作或状态的态度或看法。情态动词无人称和数的变化,不能单独使用,其后接动词原形,构成谓语。否定形式的构成是在情态动词后面加not。 五、情态动词 1. 概念 2.基本用法 情态动词 意义及用法 意为“能;会”,表示能力,此时could 为can的过去式。 意为“可以”,表示请求、许可,此时could不是can的过去式,而是表示更委婉、客气的语气。 意为“可能”,can表示推测,常用于否定句或疑问句中。 can/could (1) 情态动词can/could (2) 情态动词may/might 意为“可以”,用于肯定句中表示许可;用于疑问句中表示请求。 意为“可能;也许”,表示推测,只能用于肯定句中。 (3) 情态动词must/have to must和 have to意为“必须”,表示义务或责任。 must意为“一定;肯定”,表示推测,只能用于肯定句中。 (4) 情态动词should 意为“应该”,表示劝告、建议、命令等。 (5) 情态动词would 意为“愿意;将要”,表示意愿、请求等。 (6) 情态动词need 意为“需要;必要”,多用于否定句或疑问句中。以must开头的一般疑问句的否定回答常用needn’t或doesn’t/don ’t have to。 I. 用括号内所给单词的适当形式填空 1. Eric’s parents are _ (hold) a party to celebrate his twelfth birthday. 2.(广元中考)It’s _ (believe) that Huoshenshan Hospital was set up in Wuhan in just l0 days. holding believed 【Exercise】 3.(武威中考)A new big park _ (build) in our city next year. 4.(绥化中考)This novel is very interesting. My brother _ (read) it three times. 5.(南京中考)You watch TV all the time. You _ (go) out and relax! will be built has read should go . 单项选择。 1.(连云港中考)If we don’t protect nature, some wildlife _ die out in the future. A. need B. may C. can’t D. shouldn’t 2.(武威中考)I _ sleep very well, but then I started doing yoga and it really helps. A. didn’t use to B. used to C. was used to D. wasn’t used to 3.(黄石中考)—Mom, _ I watch TV tonight? —Sure, but you _ finish your homework first. A. can; mustn’t B. may; could C. may; can’t D. can; must 4. —Excuse me, when did you leave Jinzhou? —In August, 2017. I _ for about five years. A. have left B. left C. have been away D. was away 28 5. The villagers expect that the building of the bridge _ before the rainy season comes. A. is completed B. was completed C. will be completed D. has been completed 6. —The drama series The Thunder (《破冰行动》) hits screens these days. — Oh, what a pity! I _ any of them yet. A. doesn’t watch B. didn’t watch C. won’t watch D. haven’t watched 4a Fill in the blanks with the correct forms of the verbs in brackets. Joe: _ you ever _ (take) part in an environmental project? Ken: Yes, I have. I _ (help) with a Clean-Up Day last year. It was _ (consider) the biggest clean-up project this city _ ever _ (have). Joe: How many people _ (take) part? Have taken helped considered had had took take part in意为“参加”。 【辨析】take part in, join与 join in take part in指参加会议或群众性活动等,往往指参加者持有积极的态度,并在其中发挥一定的作用。 join指加入某个党派、组织或团体等,成为其中的一员。 join in多指参加小规模的活动,如球赛、游戏等。 Ken: I _ (think) more than 1,000 people _ (come) to help out. Joe: That’s fantastic! I guess everyone in this city is _ (try) to improve the environment. Ken: Yes, we can’t afford to _ (wait) any longer to take action! think came trying wait afford sth. 买得起某物 afford to do sth.有能力做某事;负担得起做某事 take action意为“采取行动”。 take action to do sth.意为“采取行动做某事”。 4b can would could have to should must may/might People _ think that big things _ be done to save the earth. Many forget that saving the earth begins with small things. For example, you _ save electricity by turning off the lights when you leave a room. You _ also use reusable bags instead of plastic bags. may/might must/have to/should can/could/should can/could/should Fill in the blanks with the appropriate modal verbs from the box. turn off“动词+副词”型短语﹐意为“关掉”。 I think it’s a great idea that you now _ pay for plastic bags in some stores. And instead of driving to school or work, you _ ride your bike or walk. If it’s far, you _ take the bus. All these small things _ add up and become big things that _ improve the environment. Let’s take action now! have to can/could can/could can/would/could can/ could/should pay for 意为“付费;付出代价”。 常见用法如下: pay for sth.付款买某物 pay (sb.) some money for sth. 买某物付(给某人)……钱 add up 意为“把……加起来”。 Make a list of things that people can do to help the environment and discuss your list with your partner. 4c I think that everyone should use public transportation. I disagree. It’s difficult for parents with young children to use public transportation… use public transportation recycle books and paper bring a bag to go shopping throw rubbish into the bin stop killing wild animals and protect them ... Discussion Ways people can use to help the environment. Summary 现在进行时: 1 2 现在完成时: 概念、 基本结构、 标志词 被动语态:概念及构成 3 used to用法:概念及句式结构 情态动词:概念及基本用法 概念、 基本结构、 标志词 4 5 Homework 1. Write 5 sentences according to Grammar Focus. 2. Review the grammar we have learned in this period. We don’t need to do big things. We can start out small. $$