英语八年级下册（2024）Grammar in use说课ppt课件

这是一份英语八年级下册（2024）Grammar in use说课ppt课件，共39页。PPT课件主要包含了CONTENTS，earthquake，snowstorm，沙尘暴，全世界范围的，later，latest，worse，worst，earlier等内容，欢迎下载使用。
01 ~ Lead in
02 ~ Cmpund wrds
03 ~ Cmparative and superlative adverbs
04 ~ Practice
05 ~ Language pints
06 ~ Exercise&Hmewrk
Lessn Objectives:
In this lessn, we will be able t:
1. Recgnize and use cmpund wrds related t natural disasters; master the usage f cmparative and superlative adverbs.2. Use cmparative and superlative adverbs t describe natural disasters. Finish extended exercises and game-based tasks t cnslidate grammar and vcabulary knwledge.3. Recgnize the dangers f sandstrms, hurricanes, etc., strengthen safety awareness, and learn basic earthquake self-rescue skills.
Lk and match.
What disaster is this?
thunderstrm
Lk at the pictures and read the sentences. Pay attentin t the cmpund wrds in bld.
thunder+strm=
earth+quake=
cmpund wrds(合成词)
Language pints
1. A thunderstrm is a strm with thunder and lightning. 雷暴是指有雷声和闪电的暴风雨。 with prep. “有；带有；具有”,表示某人或某物带有某种特征。e.g. Lk at the by with glasses. He is my brther. 看戴眼镜的那个男孩。他是我弟弟。注意：with引导的介词短语作定语要置于所修饰词的后面。e.g. I have a huse with a garden. 我有一所带花园的房子。拓展：with 还意为“与……一起”/“用……”/“随着……;伴着……”。e.g. She lives with her parents. 她和父母住一起。 He is writing with an ink brush. 他正在用毛笔写字。 Lingling likes sleeping with the windws pen. 玲玲喜欢开着窗户睡觉。【即时练习】大家好！我很高兴与大家分享我的学习经历。 Hi, everyne! I’m very glad t share my learning experiences _______ yu.
Cmpund wrds
1）概念 复合词(Cmpund wrds)是由两个或更多独立单词组合而成的新词。 e.g. tth(牙齿) + brush(刷子) → tthbrush(牙刷) waste(废弃的) + paper(纸) → wastepaper(废纸)
2) 复合词的构成规则
Fill in the blanks with the given wrds in the bx.
1. Yu’d better bring a(n) __________ if yu need t walk n a dark rad.2. Peple living in the desert knw hw t keep themselves safe when a(n) __________ cmes.3. We shuld buy cked fd and clean water in the _____________ befre snwstrm.4. A strng __________ f the earthquake happened abut 40 minutes later, and it caused mre harm t the area.
supermarket
flashlight sandstrm aftershck supermarket
Read the text and guess the meaning f the underlined wrds.
With fewer grasslands in sme areas, the sandstrm appears mre ften. Sandstrms can cver farmlands, cause traffic accidents, and harm human health. Peple shuld take actin in time t fight against sandstrms. Or, the sandstrm may becme a wrldwide prblem.
grass + land = grassland
sand + strm = sandstrm
farm + land = farmland
wrld + wide = wrldwide
in sme area 在一些地点
take actin (t d sth.) 采取行动(做某事)
fight against 反对;与做斗争
Read again and answer the questins.
Q1: What causes sandstrms t appear mre ften?Q2: List three harms f sandstrms.Q3: What shuld peple d?Q4: What may happen if we dn't act?
Fewer grasslands.
Cver farmlands, cause traffic accidents, harm human health.
Take actin in time t fight against sandstrms.
It may becme a wrldwide prblem.
2. Peple shuld take actin in time t fight against sandstrms. 人们应及时采取行动防治沙尘暴。1) take actin (t d sth.) 意为“采取行动(做某事)”。此时actin在这里作 不可数名词，意为“行动；行为过程”。e.g. Dn't talk—take actin t make a change. 不要光说——要采取行动做出改变。2) fight against意为“与……作斗争；反对；打击”。此时 against在这里作 介词，意为“反对；与……相反”。e.g. We shuld fight against schl bullying. 我们应当与校园霸凌作斗争。【即时练习】 1) We need t take actin ________ the envirnment befre it’s t late. A. prtect B. prtecting C. prtected D. t prtect 2) 我们应该足够勇敢，能与坏人做斗争. We shuld be brave enugh t _________ _________ the bad peple.
fight against
Pair wrk. Read the cnversatin. Pay attentin t the wrds in bld.
Will there be a disaster preventin training at schl tmrrw?
Yes. We must arrive earlier than usual.
N prblem! What shuld we wear t schl?
We’d better wear sprts shes. We can perfrm best in sprts shes.
earlier是early的比较级
best是well的最高级
3. We can perfrm best in sprts shes. 穿运动鞋会让我们表现得最好。 perfrm v. “工作；运转(好/不好); 表演；履行”。e.g. Our team pefrmed very well in hte final. 我们队在决赛中表现得非常好。 I plan t perfrm a dance in the art festival. 我打算在艺术节表演舞蹈。 A cmputer can perfrm many tasks at nce. 电脑能同时执行多项任务。拓展：perfrm v.“表演；表现”→ perfrmance n.“表演；演出” → perfrmer n. “表演者；演出者；演员”e.g. The perfrmance starts at 7 'clck this evening. 演出在今天晚上7点开始。 These perfrmers are frm Henan. 这些演员来自河南。【即时练习】The guests clapped plitely when the _____________ finished her wnderful ______________. (perfrm)
Cmparative and superlative adverbs
1) 概念 副词比较级和最高级用于比较动作或状态的程度。e.g. Kangkang runs faster than I d. WangJunfeng runs (the) fastest. 康康跑得比我快。王俊峰跑得最快。 Lingling des hmewrk mre carefully than I d. Xia Ya des hmewrk (the) mst carefully. 玲玲做作业比我细心。肖雅做作业最细心。
2)副词比较级和最高级构成规则(1)规则变化
2)副词比较级和最高级构成规则(2)不规则变化
注意：① 形容词加-ly构成的双音节副词通常在比较级前面加mre, 在最高级前面加(the) mst。如： e.g. slwly(慢)→ ________ slwly(更慢)→(the) ________ slwly(最慢);② ften的比较级和最高级有两种： ften(经常) → ftener/mre ften(更频繁) → (the) ftenest/(the) mst ften(最频繁);③ 副词最高级前面的the可省略。
3) 用法 比较级：两者比较(常与than连用)。 最高级：三者及以上比较(常加比较范围)。
e.g. My parents get up earlier than me. 我的父母起床比我早。 My grandparents get up (the) earliest in my family. 在我家，我的祖父母起床最早。
练习：The wind blws ________ in a typhn than n a usual day. A. hard B. harder C. hardest
4) 比较等级的用法 ①比较级：副词比较级+than 意为“……比……更……”, 表示一方超过或不如另一方。e.g. The frest fire spread faster than we thught. 森林大火蔓延的速度比我们想象的更快。
②比较级：比较级+and+比较级/mre and mre+多音节副词原级 意为“越来越……”e.g. She cks better and better. 她饭做得越来越好。 He plays the pian __________________ beautifully. 他钢琴弹得越来越动听。
mre and mre
4) 比较等级的用法 ③比较级：the+比较级+(主谓), the+比较级+(主谓) 意为“越……(就), 越……“”表示一方的程度随着另一方的变化而变化。e.g. The mre we knw each ther, the better we understand each ther. 我们越是相互了解，就越能彼此理解。
注意：比较级形式表示最高级意义 any ther+可数名词单数比较级+than + the ther+可数名词复数 any f the ther+可数名词复数 anything/anybdy else
e.g. He runs farther than any ther student in class. = He runs farther than the ther students in class. = He runs farther than any f the ther students in class. = He runs farther than anybdy else in class.  他比班上任何一个学生跑得都远。
练习： 1) China is larger than any ther ________ in Asia. A. cuntries B. cuntry C. the cuntry 2) —Canada is ne f the largest ________ in the wrld. —Yes, it is larger than ________ cuntry in Asia. A. cuntry; any ther B. cuntries; any ther C. cuntries; any
5) 副词比较等级的修饰语
e.g. Xia Ya plays the guitar much better than me. 肖雅的吉他弹得比我的好多了。 He plays basketball almst the best in ur schl. 他几乎是我们学校篮球打得最好的。
挑战一：写出下列副词的比较级和最高级形式。
late → ________ → ________ badly → ________ → ________hard → ________ → ________ early → ________ → ________well → ________ → ________ far → ________ / ________ → ________ / ________
挑战二：用括号内单词的适当形式填空。
1. She wrks _______ (hard) than her brther, but her father wrks ________ (hard) in the family.2. He arrived ________ (early) than me, but she arrived _________ (early) in the class.3. Tm runs ____________ (quick) than Jack, but Sam runs ______________ (quick) f all.4. The bird sings _____________ (lud) than the frg, but the alarm rings _____________ (lud) f all.
mre quickly
mst quickly
1. The wind blws ________ in a typhn than n a usual day. A. hard B. harder C. hardest2. The wind blew ________ yesterday than tday. It was really scary. A. badly B. wrse C. wrst3. The frest fire spread ________ faster than we thught. A. mre B. much C. very4. ______ the hurricane mves, ______ it becmes fr castal areas. A. The quickly; the dangerus B. Mre quickly; mre dangerus C. The mre quickly; the mre dangerus 5. The guard ran ______ f all t put ut the frest fire, and he saved many trees in the end. A. fast B. faster C. the fastest
Cmplete the table and learn hw t use the cmparative and superlative adverbs.
mre carefully
(the) mst carefully
(the) farthest
put ut 扑灭；出版
keep away frm 远离；避开
Cmplete the text with the crrect frm f the given wrds.
bad far hard high terrible
sweep thrugh 横扫；席卷
get ver 克服；解决；控制
Read again and chse the best answer.
1. When did Hurricane Sandy sweep thrugh the twn? ( ) A. On Octber 1st, 2012 B. On Nvember 1st, 2012 C. On December 1st, 2012 D. On Nvember 1st, 20222. Where did the writer’s huse stand? ( ) A. Near the beach B. In the city center C. On a hillside D. In a frest3. Why did the writer think they were safe at first? ( ) A. Because they lived far frm the beach B. Because they lived in a strng huse C. Because the wind was nt strng D. Because they had prepared well
4. What happened t the huse during the strm? ( ) A. The walls fell dwn B. The windws brke C. The rf was taken away D. The dr was brken5. Which part f the twn was hit hardest? ( ) A. The hillside B. The twn center C. The nrth side D. The beach side6. Hw des the writer feel abut this experience? ( ) A. Excited B. Prud C. Painful D. Funny
4. Nearly everything there was gne. 那儿的一切几乎都消失了。 gne是g的过去分词形式, 在此处用作形容词, 意为“消失了；不复存在”。e.g. —Many frests were gne because peple cut dwn the trees. 因为人们的砍伐，许多森林消失了。 —What a pity! 太可惜了!【即时练习】 在水面以下超过152米处，日光几乎完全消失。 At mre than 152 metres belw the surface f the water,   the daylight is almst ________.
5. It is a terribly painful experience fr me and I still can't get ver it. 这对我来说是一个可怕的痛苦的经历，我仍然无法克服它。 get ver “克服；解决；控制”e.g. —She can't get ver her shyness. 她无法克服羞怯心理。 —Let's help her. 让我们帮助她吧。拓展：get ver sth./sb. 从疾病(或震惊、断绝关系等)中恢复常态。 get sth. ver (t sb.) 向(某人)讲清某事；让(某人)明白某事。e.g. I hpe yu can get ver sn. 我希望你能尽快恢复健康。 He didn't get his meaning ver t us. 他没有向我们讲清他的意思。【即时练习】 She tried ________ her fear and sang in frnt f the class. A. get ver B. t get ver C. getting ver D. gt ver
Key phrases
1. 采取行动(做某事) ________________________ 2. 及时 _______________3. 与...做斗争；反对 ___________________ 4. 扑灭；出版 __________________5. 远离；避开 ______________________ 6. 克服；解决；控制 _________________
take actin (t d sth.)
fight against
keep away frm
I. 用方框中所给单词的适当形式填空(有一项多余)。
1. After the strng ____________, many peple lst their hmes and needed help.2. A ____________ is very useful when yu walk in the dark.3. The news abut the sandstrm spread ____________ quickly n the Internet.4. Withut enugh ____________, the land may becme dry and sandy.5. The teacher used a ____________ s that every student culd hear clearly.
earthquake flashlight wrldwide grassland aftershck ludspeaker
1. The wind blew __________ (hard) yesterday than tday.2. Amng all the students, Tm ran ______________ (fast) in the 100-meter race.3. She sings __________________ (beautiful) than her sister.4. The frest fire spread ________________ (quick) than we expected.5. In a sandstrm, yu shuld walk ______________ (careful) than usual.
II. 用括号内所给单词的适当形式填空。
(the) fastest
mre beautifully
1. 沙尘暴比我们想象的来得更快。 The sandstrm came ________ ________ than we thught.2. 地震中，最重要的是保持冷静。 In an earthquake, ______ ________ __________ thing is t stay calm.3. 暴风雨越来越猛烈。 The strm became ________ and ________.4. 我们应尽快采取行动防治沙尘暴。 We shuld ________ ________ as sn as pssible t fight against sandstrms.5. 在台风中，他比其他人表现得勇敢得多。 In the typhn, he acted ________ ________ ________ than thers.
III. 完成译句 (每空一词)。
mre quickly
the mst imprtant
wrse wrse
take actin
much mre bravely
We learn: 1. the structure and meaning f the cmpund wrds. 2. the usage f cmparative and superlative adverbs.We can: 1. guess the meaning f a cmpund wrd and cmpare hw tw r three peple d things.2. feel the bad effects f sandstrms and hurricanes and hw pwerful natural disasters are.
1. 基础层：抄写核心合成词 / 词汇，各造 1 个句子（含 1 个 比较级 / 最高级句子）。2. 提高层：画一张自然灾害合成词思维导图 （如 strm→snwstrm/thunderstrm/sandstrm）。3. 拓展层：小组合作，制作 “防灾合成词海报”，包含 8 个以上 合成词和防灾建议。