Unit 2 Clean our classroom（复习课件）英语译林版三起三年级下册（新教材）

Unit 2 Clean our classroom 单元复习 contents Sounds 01 Sentences 03 Words & phrases 02 05 Practice 04 Tips 2 Sounds 01 Listen and chant Look outside—it’s a good day! Let’s clean our desks and go out to play. Sweep the floor and clean the window. Put away your books and off we go! Read and choose /k/ /g/ kite bag guess cook cake egg like go desk 5 Words & phrases 02 Words our 我们的 classroom 教室 put away 收起，放回原处 close 关闭 window 窗，窗户 blackboard 黑板 chair 椅子 dirty肮脏的 sweep 打扫，清扫 floor 地板，地面 let 让 us 我们 desk 课桌，书桌 clean 干净的 keep （使）保持，处于 7 Phrases 放好书本 擦黑板 擦椅子 扫地 big and new clean the chair  clean the blackboard 保持它干净整洁 关窗户 又大又新  put away the books close the window sweep the floor keep it clean 8 Phrases 擦桌子 一个脏的桌子 打扫我们的教室 清洁你的桌椅 look outside clean our classroom  a dirty desk 出去玩 关门 看外面  clean the desk close the door clean your desk and chair go out to play 9 Sentences 03 10 Sentences 1.Our classroom is big and new. 我们的教室又大又新。 2.Let’s keep it clean for you and me. 让我们为了你我来保持它的干净整洁。 3. Let’s clean our classroom. 让我们来打扫教室。 4. Sweep the floor, please. 请扫地。 5.Please clean your desk and chair. 请打扫你的桌椅。 6. Look! That desk is dirty! 看！那张桌子很脏! Sentences 7. It’s a good day. 今天是个好天。 8. Let’s clean our desks and go out to play. 让我们擦擦桌子然后出去玩。 9. Put away your books and off we go! 放好你的书然后我们走吧！ 10.—I can clean the blackboard. 我可以擦黑板。—Me too! 我也是！ 11.Let’s sweep the floor. 让我们扫地。 12. Our classroom is clean now. 我们的教室现在很干净。 Tips 04 知识点1：祈使句的用法 祈使句是用来表示请求、命令、希望、建议、劝告等的句子。（祈使句最常用来表示命令，因此也常被称为命令句。） 特点：祈使句一般没有主语，因为主语you通常都被省略了。 例句：Listen to me! 听我讲！ Clean the blackboard, please. 请擦黑板。 【肯定祈使句】 1.结构：(1) 动词原形+其他 例如：Open the door. 开门 (2) Be+形容词/名词 例如: Be quiet. 安静。 (3) Let+宾语+动词原形+其他 例如：Let’s clean the chairs. 让我们来擦椅子。 知识点1：祈使句的用法 2.用客气的语气表示祈使句时，可以在句首或句末加上please。 *如果在句末加please，那再please前一定要用逗号隔开。 例如：Please close the window./Close the window, please. 请关窗。 3. 注意：祈使句中如果有称呼或者姓名，一定要用“,”隔开，放在句首或者句末。 例如：Mike, come in. 麦克，进来。 Come in, Mike. 进来，麦克。 【否定祈使句】 祈使句的否定形式，在动词前加don’t。 例如：Clean your desk, Bobby. （改为否定句）→ Don’t clean your desk, Bobby. 【祈使句的回答】 回答时可以用 “All right./Ok./Yes./Sure.”等。 Sweep the floor, please. Let’s clean our classroom. Put these books in your schoolbag. Don’t put Don’t close the door 知识点2：let的用法 Let’s …是祈使句的一种，表示建议做某事，意为“让我们……/咱们……”，用法如下： (1) Let+人称代词宾格→Let us=let’s, Let me, Let them… (2) Let+动词原形→Let’s have a look. me sweep us clean 知识点3：can的用法 表达某人会做某事的句型：主语+can+动词原形+其他。 情态动词can的用法： (1) can+动词原形 (2)否定形式cannot=can’t （否定句改写直接在can后面加not） (3)一般疑问句把can提到句首，肯定回答：Yes, 主语+can. 否定回答： No, 主语+can’t. 例句：We can keep the classroom clean. 我们可以保持教室干净。 否定句：We can’t keep the classroom clean. 一般疑问句：Can you keep the classroom clean? 肯否回答：Yes, we can./No, we can’t. C A A run jump Can clean can’t clean 知识点4：人称代词 人称代词是指直接指代人或者事物的代词。在英语和中文中都有三种人称代词，即第一人称（我/我们）、第二人称（你/你们）、第三人称（他/她/它；他们/她们/它们）。 知识点4：人称代词 (1)主格作主语，一般放句首。 例如：We can clean our classroom. 我们可以打扫我们的教室。 (2)宾格放在be动词或介词后面。 例如：This is me. 这是我。 That toy car is for you. 那个玩具小汽车是给你的。 (3)形容词性物主代词，翻译带“的”，表示“属于某人”。 例如：I can clean my desk and chair. 我会打扫我的桌椅。 Our classroom is clean now. 我们的教室现在是干净的。 C C A He She It I You We them me our your Practice 05 一、判断句子中画线部分读音是否相同，相同的写“T”,不同的写“F” ( )1. It’s a big pencil case. ( )2. I have a good book. ( )3. Four girls get together. ( )4. This cake is for Jake. F F T T 21 二、单项选择。 ( )1. —What can you do to keep your room clean? —I can _______ the floor. cleaning B. sweep C. close ( )2. Let ______ clean the window. we B. our C. us ( )3. That desk is ______. Let me clean it. clean B. dirty C. nice ( )4. It’s hot. ______ the window, please. A. Clean B. Close C. Open B C B C 22 二、单项选择。 ( )5. My bedroom is not big, _______ it’s nice. but B. and C. or ( )6. It’s ______ English book. I B. my C. me ( )7. Let’s ______away the books. A. putting B. put C. puts ( )8. —Is this your classroom? —Yes, _______. A. it isn’t B. you’re wrong C. you’re right A B B C 23 三、选词补全对话。 nice things clean let’s library can do like Miss Li: Boys and girls, _________ talk about our school. Do you _________ our school? Liu Tao: Yes. Our school is very __________. Miss Li: But sometimes it’s not ___________. What can we __________? Yang Ling: We can do many ___________ to keep it clean. Mike: We can clean the _____________. Su Hai: We _________ clean the classroom. Miss Li: Yes, we can help. Let’s work together. Students: OK! 四、情境对话。 ( )1. 大扫除时，你想擦黑板，你可以这样说： Let me clean the desk. B. Let me clean the blackboard. ( )2. 当你想表达“我们一起来打扫教室吧”，你可以说： Let’s clean our classroom. B. Let’s play in the classroom. ( )3. 轮到你们组值日了，你想别人和你一起扫地，你会说： A. Let me sweep the floor. B. Let’s sweep the floor. ( )4. 当你看到教室里的书乱了，你会说： Let’s open the book. B. Let’s put away the books. ( )5. 但你发现大风把窗外的树叶吹进教室时，你会说： A. Please close the window. B. Please open the window. B A B B A 25 五、从方框中选择合适的句子完成对话。 Tina: Hi, Max. What do you do on Sunday? Max: I clean my room with my brother. Tina: Is your room dirty? Max: 1.______ Tina: What can you do? Max: 2.______ Tina: What about your brother? Max: 3.______ Tina: 4.______ Max: Yes, we can. Tina: We should keep our rooms clean. Max: 5.______ You’re right. Yes, it is. He can put away his toys. Can you clean the window? I can sweep the floor. B E C D A 26 六、阅读对话，判断正（T）误(F) 。 Jack: Oh, no! Where is it? I’ve looked everywhere. Ella: What’s the matter(怎么了), Jack? Jack: I can’t find my pencil. Ella: Let me help you. Ah, here it is! It’s under your chair. Jack: Thank you so much, Ella. Ella: You should look after(照顾好) your school things, Jack. 27 六、阅读对话，判断正（T）误(F) 。 ( )1. Jack can’t find his pen. ( )2. Jack is looking for his pencil. ( )3. Ella wants to help Jack. ( )4. The pencil is on Jack’s chair. F T T F 28 Thank you! 29 $