初中人教版（2024）Section A教学演示ppt课件

这是一份初中人教版（2024）Section A教学演示ppt课件
第一课时 1a-2dLearning goalsTalk about geography facts about natural wonders.Learn new words and phrases: wonder, desert, measurement, square kilometre, below, sea level, surface, depth, dive, unusual, bottomFree talkIt is 8,848.86 metres high.6,671 kilometres longabout 9,000,000 square kilometres in sizePre-listeningMatch the places with the pictures. Nile River Angel Falls Mount Qomolangma Dead sea Sahara Desert Mariana Trench ADFCAEDBWhile-listeninghighest mountain biggest desertlowest placedeepest pointListen again. Complete the measurements in 1b with the numbers below.highest mountain 8,848.86biggest desert9,000,000lowest placedeepest point41611,000 海平面Pair workA: What’s the lowest place on earth?B: It’s...A: How low is it?B: It’s surface is... metres below sea level.A: Now, what’s...表面A: What’s the lowest place on earth?B: It’s the Dead Sea.A: How low is it?B: Its surface is 416 metres below sea level.A: Now, what’s the highest mountain in the world?B: It’s Mount Qomolangma.A: How high is it?B: It’s 8,848.86 metres high. e.g. 1. Fendouzhe reached ______________. 2. The deep sea begins at ______________.3. The Titanic rests at ____________.4. A whale can dive to _________________.What do you know about the deep sea? Complete the sentences with the information from the picture.潜水10,909 metres200 metres3,800 metresover 2,000 metresWhile-listeningA class is asking a deep-sea researcher some questions after his talk. Listen and tick the topics they discuss.□Where the deep sea begins□Why people are researching the deep sea□Which Chinese submersible dived deeper in the water than many others□What deep-sea animals are like□How everyone should protect the deep sea潜水艇Listen again. Complete the sentences with the facts from the conversation.1. People still don’t know much about the                         .2. In                       , China’s Fendouzhe dived into the deep sea  and filmed it.3. Some animals have unusual abilities. Some are                       but can “sea”. Some can even create their own                     .4. There is rubbish even at                   metres deep.2020ocean floor blind light 11,000What is the largest shark in the deep sea?What is the bottom of the deep sea like?Why is it important to research the deep sea?在……的底部A: What is the largest shark in the deep sea?B: I think it’s the whale shark.A: Do you know how large it is?B: It can grow up to about 10 to 20 metres in length.A: What is the bottom of the deep sea like?B: It is dark, freezing, and has high pressure. There are also many unique creatures.A: Why is it important to research the deep sea?B: Because the deep sea has unique species for research, holds important resources, and can help control our climate.Language points想知道 v.奇观；奇迹 n.惊讶；惊叹 n.1. The Wonders of Nature 自然奇观 (教材 P31 单元标题)2. 416 metres below sea level 低于海平面416米。(教材 P32 1b)(1)[介词]①(地方或位置)在(或到)……下面below prep. & adv.在 (……)下面；低于The temperature in our hometown usually drops below zero in winter. 我们家乡的气温在冬天通常会降到零度以下。For further information on tomorrow’s weather, call the hotline below. 如欲查询明天的天气情况，请拨打以下热线 。(2)[副词]在(或到)下面②(数量、水平等)少于；低于belowunder表示在某物的下方，但不一定是在正下方。表示在某物的正下方。反义词:above反义词:over(1)高度 As long as we keep working, we will achieve higher levels. 只要我们继续努力，我们会达到更高的水平。The level of salt in his diet was too high. 他饮食中盐的含量过高。(2)水平；程度 常与介词of连用。3. Why people are researching the deep sea人们为什么要研究深海 (教材 P33 2b)(1)[动词]研究；调查She spent several months researching the subject.她花了几个月的时间研究这个主题。(2)[不可数名词]研究；调查do research (on/into sth.) 进行(关于某方面的)研究/调查由“ un-( 否定前缀) +usual(adj. 通常的) ”构成。unusual的发音以元音音素开头，其前有不定冠词时，应用an。4. Some animals have unusual abilities. 有些动物拥有非凡的能力。(教材 P33 2c)Summary1. wonder n. 奇观；惊叹 v. 琢磨；想知道；感到诧异— wonderful 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. on earth 在地球上2. square kilometre 平方千米3. below/above sea level 低于/高于海平面4. dive into the deep sea 潜入深海5. the bottom of …… 的底部Homework Review the new words and expressions. Retell 2c.