初中英语人教版（2024）八年级下册（2024）Unit 4 The Wonders of NatureSection A集体备课课件ppt

这是一份初中英语人教版（2024）八年级下册（2024）Unit 4 The Wonders of NatureSection A集体备课课件ppt，共29页。
learning bjectives
1.learn the wrds and expressins abut sme famus natural the gegraphy facts abut the natural wnders thrugh abut these places using the superlatives and large numbers.
Read these wrds.
wnder n.奇观；惊叹 v.琢磨；想知道measurement n.数量；测量square kilmetre 平方干米belw prep.在下面；低于 adv.在(或到)下面level n.高度；水平；程度surface n. 表面；表层
Nile River 尼罗河Angel Falls 天使瀑布Munt Qmlangma 珠穆朗玛峰Dead Sea 死海Sahara Desert 撒哈拉沙漠Mariana Trench 马里亚纳海沟
D yu knw these natural wnders in the wrld?
/ˈwʌndə(r)/ n. 奇观；惊叹
Angel Falls
Mariana Trench
Munt Qmlangma
Sahara Desert
['tʃəʊməʊˌlɑ:ŋmə]
/ˌmæriˈɑːnə/
Match the places with the pictures.
What's the highest muntain in the wrld?
Hw high is it ?
It's 8,848.86 meters high.
Where's the deepest pint in the cean?
The Mariana Trench.
Hw deep is it?
It's abut 11,000 metres deep.
What's the lngest river in the wrld?
The Nile River.
Hw lng is it ?
It's 6,671 kilmeters in length.
It's 6,671 kilmeters lng.
What's the biggest desert in the wrld?
The Sahara Desert.
Hw big is it ?
It's abut 9,000,000 square kilmeters in size
What's the lwest place n earth?
The Dead Sea
Hw lw is it ?
Its surface is 416 metres belw sea level.
Can yu read these numbers?
six thusand, six hundred and seventy-ne
eight thusand, eight hundred and frty-fur pint fur three
nine millin, six hundred thusand
ne thusand and twenty-five
1: 1—12: (记住每个单词)
2: 13—19: -teen (thir-, fif-, eigh-)
3: 20—90: -ty (twen-, thir-, fr-, fif-, eigh-)
4: 21—99:
5: 100, 200, ... 900:
_______ hundred
6: 101—999:
_______ hundred and
______ billin (十亿), ______ millin (百万), _____ thusand, ______ hundred and
幻灯片上数字出现时，同学应迅速读出。
每人一个，按行/列依次接龙，5秒内说不出，此行/列同学即失去此答题机会，下一行/列同学接续。
1. 长、宽、高、深、面积的表达方法
The river is 20 meters wide. = The river is 20 meters in width.
【拓展延伸】作定语时用合成词“数词 - 单位词单数 – 形容词”。This 20-meter-lng rpe isn’t lng enugh t help climb the muntain.
Listen t the game shw. Cmplete the descriptins f the places.
听力技巧：听主旨，抓描述性最高级词汇（highest,largest...）
highest muntain
biggest desert
lwest place
deepest pint
Listen again. Cmplete the measurements.
听力技巧：精听，边听边记录关键数据。
Hst: Welcme t ur game shw! Tday, it’s all abut gegraphy. Answer as quickly as yu can! Questin ne: What is the highest muntain in the wrld?Fu Xing: It's Munt Qmlangma.Hst: Crrect! Hw high is it?Liu Hngyu: I knw this—it's 8,848.43 metres high.Hst: N, srry, Fu Xing?Fu Xing: Is it 8,848.86 metres?Hst: Yes! But sme scientists say Qmlangma is still grwing taller! Nw, name the biggest desert in the wrld.Fu Xing: The Taklimakan Desert?Hst: Wrng! Ella?Ella: It's the Sahara Desert.Hst: Right! Nw, hw big is it?Ella: It's abut 9,000,000 square kilmetres.Hst: That's right! What's the lwest place n earth?Liu Hngyu: It's the Dead Sea!Hst: Well dne! Its surface is 416 metres belw sea level. Nw where's the deepest pint in the cean?Fu Xing: It's in the Mariana Trench,Hst: That's crrect! Hw deep is it?Fu Xing: It's abut 11,000 metres deep.Hst:Crrect!
Listening Scripts
Listen and repeat. Pay attentin t the expressins in bld.
/ˌtækləˈmɑːkæn/
Pair wrk. Talk abut the places yu have learnt abut.
Fr example:A: What’s the highest muntain in the wrld?B: It’s Munt Qmlangma.A: Hw high is it?B: It’s 8,848.86 metres high.
1. The Great Pyramid is a great ___________ (奇观) f the ancient wrld.2. We need t get the exact _____________ (测量数据) f the rm befre buying the carpet.3. The temperature tday is five degrees ___________ (低于) zer.4. The water __________ (水平面) in the lake is rising because f the heavy rain.5. The _________ (表面) f the mn is cvered with dust and rcks.6. Munt Qmlangma is the _________ (high) muntain in the wrld.7. The Sahara is by far the __________ (large) ht desert n Earth.8. What’s the __________ (deep) pint in the cean? — It’s the Mariana Trench.9. Scientists use special tls fr the __________ (measure) f the trench’s depth.10. We lked at the stars and __________ (wnder) if there is life in space.
measurement
measurement
1. Hw d yu read the number “8,848.86” in English? A. Eight thusand eight hundred and frty-eight pint eight six. B. Eight thusands eight hundred frty-eight pint eighty-six. C. Eight thusand and eight hundred frty-eight pint eight six.2. The Dead Sea is abut 430 meters _______ sea level. A. under B. belw C. dwn3. — _______ is the Nile River? — It’s abut 6,650 kilmeters lng. A. Hw much B. Hw deep C. hw lng4. The Yangtze River is ne f _______ rivers in Asia. A. lng B. lnger C. lngest D. the lngest
1. Fenduzhe reached ______________. 2. The deep sea begins at ______________.3. The Titanic rests at ____________.4. A whale can dive t _________________.
10,909 metres
3,800 metres
ver 2,000 metres
What d yu knw abut the deap sea? Cmplete the sentences with infrmatin frm the picture.
/depθ/ n. 深（度）；纵深
□Where the deep sea begins□Why peple are researching the deep sea□Which Chinese submersible dived deeper in the water than many thers□What deep-sea animals are like□Hw everyne shuld prtect the deep sea
A class is asking a deep-sea researcher sme questins after his talk. Listen and tick the tpics they discuss.
1. Peple still dn’t knw much abut the                         .2. In                       , China’s Fenduzhe dived int the deep sea  and filmed it.3. Sme animals have unusual abilities. Sme are                       but can “sea”. Sme can even create their wn                     .4. There is rubbish even at                   metres deep.
Listen again. Cmplete the sentences with the facts frm the cnversatin.
Ms Ga: Thank yu fr the wnderful talk, Mr Jnes. Nw, des anyne have any questins?Emma: I d! Why are s many cuntries researching the deep sea?Mr Jnes: Well, curisity is ne reasn. We dn't knw enugh abut the cean flr.Fu Xing: I remember that in 2020, China's Fenduzhe dived deeper int the Mariana Trench than many ther submersibles in the wrld and filmed it. But I didn't see any deep-sea animals. What are they like?Mr Jnes: Well, many deep-sea animals are large and unusual. Sme animals are blind, but they can "see" as well as thers. Sme even create their wn light!Peter: Cl! Are there any ther surprising facts abut the deep sea?Mr Jnes: Did yu knw that there's rubbish even at 11,000 metres deep? That shcked many peple.Ms Ga: That's terrible! We shuld d smething abut it.Mr Jnes: Yu're right!
What is the largest shark in the deep sea?What is the bttm f the deep sea like?Why is it imprtant t research the deep sea?
Read the questins and think f mre yu wuld like t ask the deep-sea researcher. Research the answers. Then ask and answer the questins with a partner.
1. wnder n. 奇观；惊叹 v. 琢磨；想知道；感到诧异— wnderful adj. 精彩的；绝妙的2. measure v. 测量；量度为—measurement n. 数量；测量3. deep adj. 深的；有……深的—depth n. 深(度)；纵深4. research v. & n. 研究；调查—researcher n. 研究者5. usual adj. 通常的—unusual adj. 特别的；不寻常的— usually adv.通常地
1. n earth 在地球上2. square kilmetre 平方千米3. belw/abve sea level 低于/高于海平面4. dive int the deep sea 潜入深海5. the bttm f …… 的底部
Munt Qmlangma is the (high) muntain in the wrld.We were all (shck) t hear that there is rubbish at the bttm f the cean.The (deep) f the Mariana Trench is abut 11,000 metres.Curisity is ne f the (reasn) why peple explre the deep sea.Many deep-sea animals lk (usual) and have special abilities.
1. Munt Qmlangma is _______ muntain in the wrld.A. high B. higher C. the highest D. tallest2. The Dead Sea is 416 metres _______ sea level.A. belw B. under C. n D. in3. They _______ many phts in the deep sea last year.A. take B. tk C. takes D. are taking4. It’s imprtant _______ the deep sea.A. learn B. t learn C. learning D. learns5. We dn’t knw much _______ the cean flr.A. abut B. with C. fr D. at