人教版八年级英语上册课件Unit 4 Amazing Plants and Animals第1课时(Section A 1a-1d & Pronunication)

这是一份人教版（2024）八年级上册（2024）Unit 4 Amazing Plants and Animals Section A 1a-1d示范课课件ppt，共28页。PPT课件主要包含了最高级，v 比较，n 联系，useful，cute，beautiful，small ，large，tall，fast等内容，欢迎下载使用。
ln this unit, yu willtalk abut sme amazing plants and animals. use superlatives t cmpare mre than tw things. discuss the cnnectin between plants, animals, and ur lives. explre why plants and animals are imprtant t us.
What d yu see in the pht?What d yu think f when yu see the pht?
Flwers and bees.
When I see the pht, I think fthe beauty f nature and theimprtance f bees in pllinatin.
Watch and answer: What is the vide abut?
What’s yur favrite animal r plant? Why?
hard-wrking
Pre-listening
Lk at the plants and animals. Use the wrds in the bx t talk abut them.
beautifulbig fast heavy large lngld small tall shrt
 mss: _________
 blue whale: _______
/mɒs/ n. 苔藓
 redwd tree: ____
 cheetah: _________
/ˈtʃiːtə/ n. 猎豹
/ˈredwʊd/ n. 红杉；红木
While-listening
Listen t the cnversatins and number the plants and animals in 1a in the rder yu hear them.
Listen again. Match the wrds with the plants and animals in 1a. Sme have tw answers.
mss: _________
blue whale: _______
redwd tree: ____
cheetah: _________
A. heaviestB. largestC. mst beautifulD. ldestE. fastestF. tallest
A. heaviest
C. mst beautiful
Emma: Yaming: Emma:Yaming: Emma:Yaming:Emma: Yaming: Emma:
Hi, Yaming. What are yu ding?Hi, Emma. I’m starting a test n ________________.Sunds fun. Let’s take it tgether. OK. First questin. What’s __________ animal in the wrld? It’s the _________, right? Right. It’s als __________ animal n earth. Next questin. Which animal runs _________? Oh wait! I just read abut it. The _______ runs the fastest. Right again! And I think it’s ________________ animal in the wrld. I cmpletely agree with yu.
animals and plants
the largest
the heaviest
the fastest
the mst beautiful
Listen and fill
Cnversatin 1
Yaming:Emma:Yaming: Emma: Yaming: Emma: Yaming:
Cnversatin 2
Nw let’s answer the questins ______________. What is _____________ plant in the wrld?Hmm, I’m nt sure. D yu have any idea? Well, I think mss is _________________ plants. It appeared n earth arund __________ years ag ... Oh, lk here. I’m crrect!Interesting! Let’s g n!Which kind f tree is _______________ in the wrld? The redwd tree, right?Yes! I hpe I can see sme smeday.
abut plants
ne f the ldest
470 millin
the tallest
Mss is ne f the ldest plants n earth.
The blue whale is the largest and heaviest animal n earth.
The redwd tree is the tallest tree in the wrld.
The cheetah runs the fastest and is the mst beautiful animal in the wrld.
最高级用于‌_______者或以上‌的人/物比较，表示“最……”的概念。结构公式：_______ + 形容词/副词最高级 (+ ___________)
观察下列句子并试着归纳最高级的结构公式。
ld— ldestfast — fastesttall —tallest
一般情况下，在词尾加-est
large — largestfine — finest
以字母e结尾的词，在词尾加-st
heavy — heaviesteasy — easiestearly — earliest
以“辅音字母 + y”结尾的双音节词，先把y改为 i ,再加-est
形容词/副词最高级变化规则
big — biggestfat — fattestthin — thinnest
重读闭音节词，词尾只有一个辅音字母时，先双写该辅音字母，再加-est
beautiful — mst beautifulinteresting — mst interestingdelicius — mst delicius
多音节词和部分双音节词在词前加mst
Pst-listening
Ask and answer questins abut the plants and animals in 1a.
What’s amazing abut the blue whale?
It’s the largest / biggest animal in the wrld.
What’s the … animal/plant in the wrld?
It’s the ...
Can yu find mre amazing animals r plants?
change its bdy clravid predatrs
intelligencechange the texture and clr f its skin
the smallest bird in the wrldflap its wings extremely fast
generate electric shcksstun prey and defend against predatrs
Chamelen（变色龙）
Hummingbird（蜂鸟）
Electric eel（电鳗）
When an insect lands n its leaf, the leaf can snap shut quickly t trap and digest it.
stre a large amunt f water in its thick trunkhuge trunk
grw extremely fastsmetimes up t 91cm in a single day
the largest unbranched inflrescencegive ff a smell like rtting flesh
Venus Flytrap（捕蝇草）
Babab（猴面包树）
Crpse flwer（尸花 / 泰坦魔芋）
Listen and repeat. Add ne mre wrd t each grup.
whale rain stay_____
mice fly high_____
ty jin chice_____
black blw blue_____
clean climb clck_____
glad glass glbe_____
bread bring brwn_____
crss cream cry_____
grass great grw_____
发音时，由/e/音滑向/ɪ/音，前重后轻，口形随之变化
发音时，由/ɑː/音滑向/ɪ/音，前重后轻，口形随之变化
quite 相当cry 哭high 高
danger 危险afraid 害怕的maybe 也许
发音时，由/ɔ/音滑向/ɪ/音，前重后轻，口形随之变化
enjy 喜欢jy 乐趣nise 噪声
发音时，先发/b/的音，再快速滑到/l/的音，前重后轻，口形随之变化
发音时，先发/k/的音，再快速滑到/l/的音，前重后轻，口形随之变化
发音时，先发/g/的音，再快速滑到/l/的音，前重后轻，口形随之变化
blind 瞎的blw 吹black 黑色（的）
clud 云彩class 班级clthes 衣服
glue 胶水glve 手套glasses 眼镜
发音时，先发/b/的音，再快速滑到/r/的音，前重后轻，口形随之变化
发音时，先发/k/的音，再快速滑到/r/的音，前重后轻，口形随之变化
发音时，先发/g/的音，再快速滑到/r/的音，前重后轻，口形随之变化
umbrella 伞break 间断breath 一口气
create 创造screen 屏幕acrss 横过
agree 赞成grup 群；组grade 年级
Listen and repeat. Ntice the difference in stress and meaning f the same sentence.
I visited the redwd frests in Califrnia several times. (nt ther frests) I visited the redwd frests in Califrnia several times. (nt ther places) I visited the redwd frests in Califrnia several times. (nt nly nce)
在英语句子中，实词（如名词、动词、形容词、副词等）承载重要信息，一般需要重读；而充当语法功能的词（如冠词、连词、介词、助动词等）一般弱读。但这条读音规律并非一成不变，句子中的重音可以随着说话者要表达的意思的不同而变化。
I have an amazing friend. （强调“我”有一个很棒的朋友，而不是其他人） I have an amazing friend. （强调我有“一个”很棒的朋友，而不是几个） I have an amazing friend. （强调我有一个“很棒的”朋友，而不是其他类型的朋友）
一般情况下，I, an 等功能词在句中弱读，但在上述情境中这两个词需要重读。