人教版（2024）八年级上册（2024）Unit 4 Amazing Plants and Animals Section B Vocabulary in Use教学ppt课件

这是一份人教版（2024）八年级上册（2024）Unit 4 Amazing Plants and Animals Section B Vocabulary in Use教学ppt课件，共4页。PPT课件主要包含了词缀affix，前缀prefix，后缀suffix，-age，-dom，-al，-ment，-ity，-ness，-ism等内容，欢迎下载使用。
Learning Aims
Circle the dd nes. Then give yur reasns.
1. habitheightsizeweight 2. jyhappinessfunenjy 3. angrydisappintedsmartsad 4. appearlkseemwatch 5. hneymilkjuicebread
happiness perfrmance reality educatin mvement decisin
D yu knw these nuns?
Are they the riginal frms r changed nes?
We can change verbs/adjectives int nuns by adding suffix.
We can add suffixes t their endings
[ˈsʌfɪks] 后缀
happy (adj.) + -ness → happiness (n.)
perfrm (v.) → perfrmance (n.)
educate (v.) → educatin (n.)
real (adj.) → reality
mve(v.)-mvement (n.)
decide(v.)-decisin (n.)
Add the endings -ance, -(t) in, -ness, and -ity t frm nuns. Use yur dictinary.
1. act _________________2. gd _________________ 3. kind _________________4. appear _________________ 5. real _________________6. imagine _________________ 7. cnnect _________________8. ppular _________________ 9. cmmunicate _________________ 10. imprtant _________________
cmmunicatin
2b Add the endings -ance, -(t)in, -ness, and -ity t frm nuns. Use yur dictinary.
T change the meaning r the part- f - speech
-ee/-er/-r/-ist
-icatin/ -tin/-sin
-ance/-ence
Can yu classify them?
D yu knw sme suffix?
-icatin/ -tin/-sin
-icatin/-tin/-sin
a state, cnditin, trait, r quality, an actin, a place fr such, r its result表达一种状态、条件、特点、品质、动作、地点或结果
a state, cnditin, trait, r quality表达一种状态、条件、特点、品质
a state, cnditin, trait, r quality, an actin, a dctrine, thery, r a set f guiding principle表达一种状态、条件、特点、品质、动作、教条或是理论主义
Cmplete the sentences with the crrect frms f the wrds in the bx.
1. I felt ________________ when my favurite flwers died. 2. After the rain, sme mushrms ________________ in the garden. 3. In my hmetwn, peple ften use bamb baskets t ________________ fd. 4. What did yu put in yur luggage? It ________________ a tn. 5. I can’t ________________ my life withut my pets. They mean a lt t me.
disappinted
appear/appeared
weighs/weighed
/ˈmʌʃrʊm / n. 蘑菇；伞菌
Cmplete the passage with the crrect frms f the wrds in the bx.
Yu may nt realize it, but frgs play an imprtant rle in ur ____________ ecsystem. The smallest frgs are abut the size f a pea, while larger nes can grw as big as a human hand. Many peple knw that frgs help t ____________ farms by eating insects. ____________, nt everyne understands their ____________ in nature. Frgs can live n ____________ and in water. Because f this, they are ppular subjects in studies n climate change and the ecsystem.
/ˈklaɪmət/ n. 气候
/piː/ n. 豌豆
/rəʊl/ n. 作用；职能；角色
play a rle (in)在……中发挥作用；扮演角色
Read 2d again and cmplete the tasks.
1. What rle d frgs play in ur ecsystem? ( )A. An unimprtant rle B. An imprtant rle C. A destructive rle2. Hw small can the smallest frgs be? ( )A. Abut the size f a pea B. As big as a human hand C. As big as a muse3. Hw d frgs help t prtect farms? ( )A. By pllinating plants B. By eating insects C. By lsening the sil
4. Why are frgs ppular subjects fr studies n climate change and the ecsystem? ( ) A. Because they are brightly clred and easy t bserve. B. Because they have a very lng lifespan. C. Because they can live n bth land and in water, making them sensitive (敏感的) t envirnmental changes.
5. What is the main purpse f this passage? ( ) A. T tell a fun stry abut frgs. B. T describe the different sizes and appearances f frgs. C. T intrduce the imprtant rle f frgs in the ecsystem and sme f their key features.
Language pints
I can’t imagine my life withut my pets. They mean a lt t me.
imagine意为“想象”，后可接名词、代词或动词-ing形式作宾语。mean a lt t sb. 表示“对某人意义重大”。常见例句：I can't imagine living withut electricity.我无法想象没有电的生活。
Yu may nt realize it, but frgs play an imprtant rle in ur planet's ecsystem.你可能没有意识到，但青蛙在我们地球的生态系统中起着重要的作用。
play a rle ( in )①(在…中)发挥作用;(在…中)有影响,其中 rle 用作名词,意为“作用;职能;角色”。同义短语:play a part(in sth)e.g. Schls play an imprtant rle in educatin. 学校在教育中起着重要的作用。
②扮演角色e.g. He will play an imprtant rle in the mvie. 他将在这部电影中扮演一个重要的角色。
The smallest frgs are abut the size f a pea, while larger nes can grw as bigas a human hand.最小的青蛙大约只有豌豆那么大，而大一点的青蛙能长到人类手掌那么大。
while 【连词】①而;然而 表示两种情况的对比。e.g. I like cffee while my sister likes tea. 我喜欢喝咖啡,而我姐姐喜欢喝茶。
②与……同时;当……的时候引导时间状语从句,从句谓语动词须用延续性动词。它强调主句的动作是在从句动作发生的过程中发生的,或者主从句的动作几乎同时进行。
e.g. While we were talking, the teacher camein. 当我们在说话时,老师进来了。e.g. I was ding my hmewrk while my mther was cking. 我妈妈在做饭时,我在做家庭作业。
Hwever, nt everyne understands their imprtance in nature.然而,并不是每个人都了解它们在自然界中的重要性。
部分否定 nt与every及含有every的不定代词连用时表示部分否定,意为“并不是每个……都”。e.g. Nt everyne is interested in the mvie. 并不是每个人都对这部电影感兴趣。
【拓展】① nt 与 all 连用,意为“并不是所有的都;并不都”,表示部分否定。e.g. Nt all the students like English. 并不是所有的学生都喜欢英语。
② nt 与 bth 连用,意为“并不是两个都”表示部分否定。e.g. Bth f them are nt gd at dancing.并不是他们两个都擅长跳舞。
1. -ance 规则：通常加在动词后面 ，构成抽象名词表示行为、状态、性质等 。 e.g. perfrm（v.表演；执行 ）→ perfrmance（n.表演；表现 ） appear（v.出现；显得 ）→ appearance（n.出现；外貌 ）
The rules fr frming nuns with the suffixes -ance, -(t)in, -ness, -ity:
2. -(t)in 规则：通常加在动词后，构成名词表示行为、过程或结果。 e.g. educate（v.教育 ）→ educatin（n.教育 ） decide（v.决定 ）→decisin（n.决定 ） imagine（v. 想象 ）→ imaginatin（n. 想象力）
3. -ness 规则：通常加在形容词后，构成抽象名词表示形容词所描述的性质、状态。 e.g. happy（adj.幸福的；快乐的 ）→ happiness（n.幸福；快乐 ） kind（adj.善良的 ）→ kindness（n.善良；仁慈 ）
4. -ity 规则：通常加在形容词后，(部分词需对词尾做适当变化 , 如去掉不发音 -e 等)，构成名词，表示具有某种特性。 e.g. active（adj.积极的 ）→ activity（n.活动；活跃 ） pssible（adj.可能的 ） → pssibility（n.可能性 ）
disappinted adj.失望的；沮丧的一般不用于进行时。由“disappint (v. 使失望；使破灭) + -ed(后缀)”构成。 be disappinted with/in sb./sth.对某人/事失望 be disappinted at/by sth.对某事失望 be disappinted t d sth.对做某事感到失望
Disappinted? 失望？ (P36 1b)
disappinting
“失望的；沮丧的”，通常表示人的主观感受。
“令人失望的；令人沮丧的”，通常表示事物自身具备的性质。
通常，-ed 形式的形容词表示人的(身体上 或精神上的)状态或人内心的感受，常意为“感 到……的”；而-ing形式的形容词则表示事物的 性质或特征，常意为“令人……的”。
【辨】disappinted与disappinting
in rder t 为了；以便 表示目的，后接动词原形，可放在句首或句中，其否定形式为in rder nt t。Teachers are strict with their students in rder t help them make great prgress.为了帮助学生取得巨大进步，老师对他们要求严格。
In rder t stre hney, they create hneycmbs. 为了贮存蜂蜜，它们建造了蜂巢。 (P36 1b)
【拓】动词不定式和in rder that 也可表示目的，两者有时可与in rder t进行同义转换。I wrked hard t get gd grades.=I wrked hard in rder that I culd get gd grades.=I wrked hard in rder t get gd grades. 我努力学习以便能取得好成绩。
( )1. I was very ______ when I heard the bad news. A. angry B. anger C. angrily D. angrier( )2. The little by can’t ______ hw big the wrld is. A. imagine B. imagine abut C. imagine with D. imagine t( )3. The ld man likes t ______ his ld phts in the bx. A. stre B. save C. enjy D. hld( )4. The ______ f the elephant is abut 5 tns. A. high B. height C. weigh D. weight
二. 用方框中所给词的适当形式填空
in ne’s hmetwn， play a rle in， as…as…， in nature， the size f， live up t， d studies n
1. The new library is three classrms put tgether.
2. My sister is nt tall I am， but she is much strnger.
3. Regular exercise keeping ur bdies healthy.
4. We can see many amazing sights ， like rainbws.
the size f　
plays a rle in　
6. There is a beautiful park ， and I usually relax there n weekends.7. She needs t her prmise t finish the prject n time.
in my hmetwn　
5. Scientists in this city hw plants grw in different cnditins(条件) last year.
did studies n　
二、用所给单词的适当形式填空1. The _____________ (appear) f the sun frm behind the cluds made us happy.2. We shuld shw ____________ (kind) t the pr.3. It's ___________ (imprtance) fr us t learn a freign language well.4. The tw cities are __________ (cnnect) by a railway.
5. The little cat is ne year ld and (weight) ne kilgram.
6. In autumn， yu can find many (mushrm) in the frest.
7. (climate) change makes summers htter and winters warmer.
8. Everyne went t the party Jhn. He had t lk after his little sister at hme.
9. We all lk fr (happy) in ur lives.
10. She felt (disappint) with the results f the exam.
11. yur help， we wn’t be able t get there.
12. This truck(卡车) can carry several (tn) f gds.
disappinted　
三、 完成下列句子（每空一词）。
1. ——关于蓝鲸什么地方令人神奇？
——它是世界上最大的动物。
—  　What’s　 amazing  　abut　 the blue whale？
— It’s  　the　  　largest/biggest　 animal in the wrld.
2. 竹子是在中国绘画中最受欢迎的主题之一。
Bamb is  　ne　  　f　  　the　  　mst　  　ppular　  　subjects　 in Chinese paintings.
3. 竹子在中国似乎是非常受欢迎的植物。
Bamb  　seems　  　t　  　be　 a very ppular plant in China.
largest/biggest　
4.这片雨林是许多珍稀动植物的家园。This rainfrest ___ ______ ___ many rare animals and plants.5.为了照料庄稼，农民们每天早起。Farmers get up early every mrning ____ ______ ____ take care f their crps.6.蜜蜂在授粉过程中发挥着重要作用。Bees _____ ____ _________ _________ ___ the pllinatin prcess.
in rder t
is hme t
play an imprtant part/rle in
7. 事实上，没有它们的工作，世界上大约80％的植物无法生长。
In fact， withut their wrk， abut  　80　  　per　  　cent　  　f　 the plants in the wrld cannt grw.
8. 然而，蜜蜂的数量在下降，科学家们很担心。
Hwever，  　the　  　number　  　f　 bees  　is　 drpping， and scientists are wrried.
9. 考虑你能做什么来保护地球上最神奇的动物之一。
 　Think　  　abut　 what yu can d  　t　  　prtect　 ne f the mst amazing animals n earth.
happiness; disappint; mushrm; tn; rle; pea; climate
play a part (in sth); be hme t sb / sth; play a rle (in)
Yu may nt realize it, but frgs play an imprtant rle in ur planet's ecsystem.The smallest frgs are abut the size f a pea, while larger nes can grw as bigas a human hand.