初中英语冀教版（2024）七年级下册（2024）Unit 8 I love nature!Time on the earth精品ppt课件

这是一份初中英语冀教版（2024）七年级下册（2024）Unit 8 I love nature!Time on the earth精品ppt课件，共21页。PPT课件主要包含了知识梳理，考点精析，过关检测等内容，欢迎下载使用。
一、现在进行时的用法　　现在进行时表示现在正在进行或正在发生的动作，也可以表示当前一段时间内的活动或现阶段正在进行的动作。句型结构是： be+ving形式（现在分词）。 标志时间词：nw，lk，listen，ver there，lk at，It’s+时间等。
二、现在分词的变化规则　1．一般情况下，在动词词尾加ing。 如：g—ging, play—playing, eat—eating 2. 以不发音的字母e结尾的动词，去e再加ing。 如：write—writing, cme—cming, take—taking 3. 以重读闭音节结尾，且词尾只有一个辅音字母的动词，双写最后这个辅音字母再加ing。 如：run—running, swim—swimming, shp—shpping 4. 以ie结尾的动词，将ie改为y, 再加ing。 如：die—dying, lie—lying
三、现在进行时的句型结构　　1．肯定句： 主语+be动词(am / are / is)+v+ing+其他. 如：I am washing my hands nw. Lk！ Jack is listening t music. Tm and his brther are ding their hmewrk. It is nine ’clck. The children are having class. 2. 否定句：主语+be动词(am / are / is)+nt+v+ing+其他. 如：I am nt (I’m nt) washing my hands nw. The children are nt(aren’t) playing ver there. It’s six past ten. Tm is nt (isn’t) having dinner.
3.一般疑问句：Is / Are / Am+主语+v+ing+其他？ 如：—Are yu watching TV nw? —Yes, I am. / N, I am nt. —Is the girl playing the pian? —Yes, she is. / N, she isn’t. —Are the children swimming in the river? —Yes, they are. / N, they aren’t. 4. 特殊疑问句： 特殊疑问词+一般疑问句？ 如：I am watching TV nw. → What are yu ding nw? Uncle Wang is drinking tea in the living rm. → Where is Uncle Wang drinking tea?
考点1 考查现在进行时的用法【例1】 用所给动词的适当形式填空。 1. She　　　　　　　　　 (draw) a map nw. 2. Listen! The bys 　　　　　　　　　(sing).　　解析:本题考查填动词的适当形式，必须要弄清楚句子的时态。第1小题中的时间词nw，第2小题中的Listen 都表示动作正在发生，都要用现在进行时；同时，注意v+ing 之前一定要根据主语的形式加上相应的be动词。 答案：1. is drawing 2. are singing
举一反三 1. 写出下列动词的现在分词形式。 (1) sing __________　 (2) dance __________ (3) write __________ 　(4) shp __________ (5) put __________ (6) die __________ 2. 单项填空。( )(1) Mum and I 　　　 husewrk nw. A. ding　　B. am ding　　C. are ding( )(2) All the peple 　　　 a ftball match. Everybdy is excited. A. watch B. is watching C. are watching( )(3)　　 they 　　　 their stamps at the crner？ A. Des； shw B. Are； shwing C. D； shwing
考点2 考查有关现在进行时句子的句型转换【例2】按要求改写下列句子。　　1. Sarah is answering the phne. (改为否定句) 　_______________________________________　　2. They are riding a bike. (就画线部分提问) 　 _______________________________________ 3. She cleans her desk in the classrm.（改为现在进行时） _____________________________________________
解析:本题考查现在进行时的句型转换，要以be动词为中心进行变化。第1小题改否定句，只要在be动词之后加nt; 第2小题是对进行时状态下的活动提问，用“What … ding?”，注意be动词要与主语的数保持一致。第3小题要将原句中的谓语动词换成“is+现在分词”，因为这才是现在进行时的正确形式。 答案：1. Sarah is nt (isn't) answering the phne. 2. What are they ding？ 3.She is cleaning her desk in the classrm.
举一反三 按要求改写下列句子。 1. Kenny ften plays the guitar n the weekend. (用nw 改写句子) ________________________________________ 2. We are watching cartns n TV nw. (改为否定句) ___________________________________________ 3. My grandpa is writing a letter. (就画线部分提问) ___________________________________________ 4. 我正在和父母亲谈论我的生日。 （汉译英） ___________________________________________
Kenny is playing the guitar nw.
We aren’t watching cartns n TV nw.
What is yur grandpa ding?
I’m talking abut my birthday with my parents.
一、写出下列动词的现在分词形式。 1. play ________ 2. lk ________ 3. study ________ 4. watch ________ 5. fight ________ 6. wait ________ 7. sing _______ 8. paint ________ 9. g ________ 10. wash ________ 11. cut ________ 12. run ________
13. sit ________ 14. begin ________15. put ________ 16. get ________17. shp ________ 18. swim ________19. take ________ 20. make ________21. write ________
二、单项填空。 ( )1. Lk！I ____ a red hat nw. A. wearing B. am wearing C. is wearing ( )2. Tm ____ TV in the rm nw. A. are watching B. is watching C. is watch ( )3. Lk!Jane ____ husewrk. A. is d B. ding C. is ding ( )4. Sme f the girls ____. A. sing B. is singing C. are singing
( )5. He's ____ basketball nw. A. play B. is playing C. playing( )6. They ____ birds in the sky nw. A. are lking at B. lk at C. lking at( )7. “Dn't talk in class，”the teacher ____. A. is speaking B. is saying C. says( )8. ____ yu ____ ball games with yur friends nw? A. Is; playing B. Are; playing C. D; play
三、用所给动词的适当形式填空。 1. My mum ___________(ck) dinner fr us nw. 2. Sam _______________(nt listen t) English. He is listening t music. 3. —_____they _______(sleep) nw? —Yes, they are. 4. Listen!Wh _________(read) English? 5. Lk at thse ld peple. They are _______(sing) and _______(dance). 6. The children _____________(swim) in the lake nw. 7. Lk!Kate and Mary ___________(clean) the windws nw. 8. Jan likes _________(paint) very much.
isn't listening t
are swimming
are cleaning
四、按要求改写下列句子。 1. They are making dumplings. (改为一般疑问句) __________________________________________ 2. Tm is listening t the teacher. (改为否定句) __________________________________________ 3. He is drinking tea under the tree. (就画线部分提问) __________________________________________
Are they making dumplings?
Tm isn't listening t the teacher.
What is he ding under the tree?
4. Is Ken climbing the tree in the garden? (作肯定回答)_____________________________________________5. Tm is reading a bk in his rm. (就画线部分提问)_____________________________________________6. I am waiting fr a bus. (就画线部分提问)_____________________________________________
Yes, he is.
Where is Tm reading a bk?
What are yu ding?
五、汉译英。 1.汤姆正在写一封信。 _____________________________________ 2.我正在游泳。 _____________________________________ 3.他们正在听音乐。 _____________________________________ 4.小猫正在跑。 _____________________________________ 5.妈妈正在看书。 _____________________________________
Tm is writing a letter.
I'm swimming.
They are listening t music.
The cat is running.
My mther is reading a bk.