仁爱科普版（2024）八年级下册（2024）Grammar in use备课课件ppt

这是一份仁爱科普版（2024）八年级下册（2024）Grammar in use备课课件ppt，共16页。PPT课件主要包含了snowstorm，earthquake，合成词，flashlight，sandstorm，aftershock，沙尘暴，全世界范围的，副词比较等级，later等内容，欢迎下载使用。
通过本课的学习，学生能够: 1. 通过观察和阅读句子理解句中合成词的含义；2. 理解和运用副词的比较级和最高级来描述自然灾 害；3. 感受自然灾害中沙尘暴、飓风等带来的危害,增强 安全防范意识并学会基本的地震应急自救措施。
Learning Objectives
Activity 1 Lk at the pictures and read the sentences. Pay attentin t the cmpund wrds in bld.
A snwstrm is a strm with strng winds and a lt f snw.
A thunderstrm is a strm with thunder and lightning.
An earthquake is a quake f the surface f the earth.
thunder+strm=
earth+quake=
thunderstrm
cmpund wrds(合成词)
构成方式：由两个或多个基础单词拼接而成，例如：bk（书） + case（盒子）→ bkcase（书架）sun（太阳） + flwer（花）→ sunflwer（向日葵）意义整合：合成词的含义并非原词意义的简单叠加，而是形成新的特定概念，例如：butter（黄油） + fly（飞）→ butterfly（蝴蝶，并非“黄油飞”）break（打破） + fast（快）→ breakfast（早餐，指“打破食”）语法功能：作为单一词汇使用，有独立的词性，例如：名词：ntebk（笔记本）、classrm（教室）动词：babysit（照看婴儿）、sunbathe（日光浴）形容词：snw-white（雪白的）、part-time（兼职的）
Activity 2 Fill in the blanks with the given wrds in the bx.
flashlight sandstrm aftershck supermarket
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
Activity 3 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 = farmlandwrld + wide = wrldwide
Activity 1 Pair wrk. Read the cnversatin. Pay attentin t the wrds in bld.
Will there be a disaster preventin training at schl tmrrw?
N prblem! What shuld we wear t schl?
Yes. We must arrive earlier than usual.
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
英语中，副词有三个等级，即原级、比较级和最高级。1. 副词比较等级的构成副词比较等级的规则变化与形容词比较等级的规则变化大致相同。例如：原级 比较级 最高级fast faster fastesthard harder hardestlate later latestearly earlier earliest下列副词的比较等级为不规则变化原级 比较级 最高级badly wrse wrstfar farther/further farthest/furthestlittle less leastmuch mre mstwell better best
2. 副词比较等级的用法副词比较等级的用法与形容词比较等级的用法基本相同。（1）原级 表示比较双方程度相同时，常用“as + 副词原级 + as”结构，意为“……和……一样” 。 例如：I want t live as happily as befre. 我想和以前一样快乐地生活。表示双方程度不同时，常用“nt as /s + 副词原级 + as”结构，意为“……不如……”。例如：Kangkang desn’t draw as/s carefully as Li Hua. 康康画画不如李华认真。（2）比较级两者之间比较时，常用“副词比较级 + than”结构，意为“比……更……”。例如：Li Hua cuts mre finely than her. 李华比她切得更细。表示否定的比较级可用 “less + 副词原级 + than” 结构，表示“……不如……”。例如：He speaks less ludly than I d. 他说话声音没有我大。
（3）最高级 三者或三者以上比较时，常用“the + 副词最高级 + in/f ... （比较范围）”结构，意为“某人（或某物）在某范围内最……”。副词最高级前可省去the。例如：Lin Ta jumps (the) highest in ur class. 林涛在我们班里跳得最高。 Li Feng sings (the) best f all. 李峰是所有人中唱得最好的。3. 副词比较等级中的注意事项（1）在同级比较结构中，第一个as前可加half、twice、three times等词来修饰，表示倍数关系。例如：Liu Mei jumps twice as far as her sister. 刘梅跳得是她姐姐的两倍远。（2）副词的比较级前可用much、a lt、a little、a bit、even、still、far等词来修饰，表示不同程度。例如：She played the pian much mre wnderfully than yu. 她钢琴弹得比你棒得多。（3）借助ther、else或否定词，比较级形式可用来表示最高级概念。例如：Nbdy runs faster than him. 没人跑得比他快。（4）“the + 比较级……，the + 比较级…… ”表示“越……，越……”。例如：The mre yu read, the mre yu learn. 你读书越多，学到的知识就越多。（5）“比较级 + and + 比较级”表示“越来越……”。例如：It is raining mre and mre heavily. 雨越下越大。
1. 写出下列副词的比较级和最高级形式：late → ______ → ______ badly → ______ → ______hard → ______ → ______ early → ______ → ______well → ______ → ______ far → ______/ ______ → ______/ ______
2. 用括号内单词的适当形式填空：She wrks _______ (hard) than her brther, but her father wrks ________ (hard) in the family.He arrived ________ (early) than me, but she arrived _________ (early) in the class.Tm runs ____________ (quick) than Jack, but Sam runs ______________ (quick) f all.The bird sings __________ (lud) than the frg, but the alarm rings __________ (lud) f all.
mre quickly
mst quickly
注意：farther和farthest指物理距离的更远和最远；further和furthest指抽象程度上的延伸，表示更进一步，更深层次和最深层次。
Activity 2 Cmplete the table and learn hw t use the cmparative and superlative adverbs.
mre carefully
(the) mst carefully
(the) farthest
Activity 3 Cmplete the text with the crrect frm f the given wrds.
bad far hard high terrible
On Nvember 1st, 2012, Hurricane Sandy swept thrugh ur twn. I still remember hw terrible the superstrm was. We lived ________ away frm the beach than mst f ur neighbrs, and ur huse std n a hillside. I thught we were safe. But the wind was blwing __________ every minute and the waves kept reaching __________. Sn, the strm arrived and tk away the rf f ur huse. It hit the beach side f the twn ______________. Nearly everything there was gne. It is a _______ painful experience fr me and I still can’t get ver it.
We have learned: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. find and write dwn mre cmpund wrds yu knw.2. Make up three sentences using cmparative and superlative adverbs.
make a table t cmpare the bad effects f different kinds f natural disasters.