人教新目标 (Go for it) 版八年级下册Section A图文课件ppt

Period 2 （Section A 3a-4c）

设计说明

　　在阅读前，首先教新单词，为学生排除阅读障碍。阅读3a文章时，先听，为学生扫清阅读中可能遇到的读音障碍，增加理解文章的信心；然后自读3a文章，按要求将段落与段落大意匹配。在处理3b任务时，可采用分段寻读的策略，学生细读完一段，完成一项任务，在核对答案的同时讲授本段重要知识点。3c要求学生根据文章的信息回答问题。通过3b和3c的学习，运用思维导图来复述文章。Grammar Focus梳理归纳了本单元的重要句式结构，通过一系列的练习活动，引导学生进行语法学习。

教学目标

　　1. 知识目标

　　（1）掌握单词和短语：achievement，southwestern，thick，include，freezing，condition，succeed，challenge，achieve，force，nature，ocean；take in，in the face of，even though （= even if），the Pacific Ocean。

　　（2）掌握句型：①One of the world’s most dangerous sports is mountain climbing，and one of the most popular places for this is the Himalayas. ②It is 8，844. 43 meters high and so is very dangerous to climb. ③It is also very hard to take in air as you get near the top. ④The spirit of these climbers shows us that we should never give up trying to achieve our dreams.

　　（3）掌握语法：比较级和最高级的不同表达句式。

　　2. 能力目标

　　（1）掌握本课时新单词和短语。

　　（2）掌握本单元语法，学会朗读大数字，能熟练运用比较级和最高级的不同表达句式去描述事物。

　　3. 情感目标

　　培养学生克服困难、挑战极限的勇气和实践精神。

重点难点

　　1. 重点：

　　（1）掌握本课时新单词和短语。

　　（2）掌握本单元语法。

　　2. 难点：

　　能熟练运用比较级和最高级的不同表达句式去描述事物。

教学准备

　　多媒体课件，录音机，磁带。

教学过程

　　Step 1　Revision

　　1. Ask the students to write some sentences to compare Beijing with their cities.

　　2. Ask and answer.

　　（1）

　　For example：

　　S1：What’s the highest mountain in the world?

　　S2：Qomolangma.

　　（2）

　　For example：

　　S1：How high is Qomolangma?

　　S2：It’s 8，844. 43 meters high.

　　Step 2　Leading in

　　1. Play the film of climber（《攀登者》）and then ask the  questions.

　　（1）Have you ever heard of Qomolangma?

　　（2）What does it look like?

　　（3）What might be the dangers of mountain climbing?

　　2. Quick response：Yes or No statements. Try to help students preview some difficult expressions about mountain climbing，which is useful for the passage reading.

　　Step 3　Reading

　　1. Show the new words and phrases on the screen：thick，include，condition，ocean，nature，force，succeed，achievement，southwestern；in the face of，the Pacific Ocean.

　　T：Today we are going to read an article about Qomolangma. First you need to know these words and phrases.

　　Get the students to read the new words and phrases following the teacher. After that，check them.

　　（1）Complete the words according to the Chinese meaning.

　　① 厚的；浓的：t hick 　② 包括；包含：include

　　③ 条件；状况：condit i o n 　④ 大海；海洋：ocean

　　⑤ 自然界；大自然：na ture 　⑥ 力；力量：fo rce

　　（2）Choose the right words or phrases according to the Chinese meaning.

　　①实现目标；成功 □secceed　succeed

　　②成绩；成就 achievement　□achevement

　　③西南的；西南方向的 □southwest　southwestern

　　④面对（问题、困难等） in the face of　□on the face of

　　⑤太平洋 the Pacific Ocean　□the Atlantic Ocean

　　2. Work on 3a.

　　（1）Get the students to read the whole passage quickly，and then choose the main idea of it.

　　□A. Qomolangma is the most dangerous mountain in the world. It is too difficult for climbers to reach the top.

　　B. Qomolangma is the most dangerous mountain in the

world，but many climbers have challenged themselves successfully to reach the top.

　　（2）Students read the article again，and match each paragraph with the main ideas.

　　（3）Check the answers.

　　Answers：Paragraph 1—Facts and dangers

Paragraph 2—Achievements of climbers

Paragraph 3—Spirit of climbers

　　（4）Fill in the blanks with the right forms of the given words.

　　①One of the world’s most dangerous （dangerous） sports is mountain climbing.

　　②One of the most popular （popular） places for mountain climbing is the Himalayas.

　　③Of all the mountains，Qomolangma rises the highest （high） and is the most famous （famous）.

　　④Even more serious （serious） difficulties include freezing weather conditions and heavy storms.

　　⑤Humans can sometimes be stronger （strong） than the forces of nature.

　　3. Work on 3b.

　　（1）Have students read the first paragraph and list four dangers for climbers.

　　（2）Check the answers.

　　Possible answers：

　　· thick clouds

　　· very high

　　· it can snow hard

　　· freezing weather conditions

　　· very hard to breathe as you get near the top

　　（3）Have students read the second paragraph and list three achievements.

　　（4）Check the answers.

　　Possible answers：1953—Tenzing Norgay and Edmund

Hillary were the first to reach the top

1960—The first Chinese team reached the top

1975—Junko Tabei from Japan was the first woman to reach the top

　　（5）Have students read the first paragraph and the third paragraph and list four comparisons.

　　（6）Check the answers.

　　Possible answers：most dangerous sport；most popular place；highest；most famous；more serious difficulties；stronger than the forces of nature

　　4. Work on 3c.

　　（1）Read the article again and answer the questions in 3c.

　　（2）Check the answers.

　　Answers：1. The Himalayas run along the southwestern part of China.

2. Qomolangma is 8，844. 43 meters high.

3. Many people try to climb this mountain even though it is dangerous because they want to challenge themselves in the face of difficulties.

4. The spirit of the climbers tells us that we should never give up trying to achieve our dreams.

　　5. Retell the article according to the mind map.

　　Step 3　Grammar Focus

　　（1）Have students look through the sentences in Grammar Focus.

　　（2）Complete the sentences with the given words.

　　①The basketball player is two meters tall.

　　②The river is only two meters deep/wide.

　　③The tree is two meters tall.

　　④The building is about two meters high/wide/long.

　　⑤The river is about three thousand kilometers long.

　　⑥The mountain is about two thousand meters high.

　　（3）Write comparisons.

　　T：Who’s the tallest in our class?

　　S1：Sam is the tallest （of all） in our class.

　　S2：Sam is taller than any other student/the other students in our class.

　　S3：No one is taller than Sam in our class.

　　S4：No one in our class is as tall as Sam.

　　S5：Mike is almost as tall as Sam. He is one of the tallest students in our class.

　　S6：...

　　Step 4　Practice

　　1. Work on 4a.

　　（1）Students fill in the blanks with the correct forms of the words in the box. Pay attention to their correct forms.

　　（2）Check the answers.

　　Answers：1. longest；longer　2. high；popular　3. big

4. older；much

　　2. Work on 4b.

　　（1）Look through the sample. Make sure students know what to do.

　　（2）Have students write two comparisons about two topics. Students must write one true comparison and one false comparison.

　　（3）Students exchange them with a partner，and besides correcting each other’s sentences，they can mark the true comparisons with “T” and the false comparisons with “F”.

　　（4）Ask some students to read their sentences.

　　3. Work on 4c.

　　（1）Have students write five questions using comparisons. Explain to students what the difference is between what and which in questions.

　　（2）Students work in groups to ask their questions.

　　Step 5　Expansion

　　What place is the best for our school trip? Choose a place and discuss the reasons why they want to travel there. They must use comparisons.

　　For example：

　　S1：The zoo is the best place to go to. It is the closest for our school trip.

　　S2：The zoo is bigger than the museum and the park. There is a baby elephant in the zoo. We can learn more about elephants.

　　S3：It is the most interesting place to go to. Many animals are living there. I hear there is a dolphin show at three o’clock every afternoon.

　　S4：It is more interesting than the park and the museum. We can see not only the elephants but also many other animals.

　　S5：...

　　Step 6　Cooperative inquiry

　　Discuss the following language points in groups and fill in the blanks.

　　一、读一读，想一想

　　1.（1）We should never give up trying to achieve our dreams.

　　我们决不应该放弃努力实现我们的梦想。

　　（2）Tom gave away his old bike to the poor student.

　　汤姆把他的旧自行车捐赠给了那个贫穷的学生。

　　（3）Never give in to difficulties. 决不要向困难屈服。

　　（4）They gave out advertisements after school. 放学后他们分发广告。

　　2. 选择恰当的短语完成下列句子。

　　（1）Although he is poor，he never gives up studying hard.

　　（2）The rebels were forced to give in.

　　（3）The volunteers gave away their pocket money to the students in the poor area.

　　（4）The teachers give out the exam papers.

　　二、形容词和副词的比较级和最高级

　　1.形容词和副词的比较级和最高级的变化规则。

　　① 一般情况加-er，-est

　　clever—cleverer—cleverest

　　② 以不发音的e结尾的，加-r，-st

　　nice—nicer—nicest

　　③ 以“辅音字母+ y”结尾的，变y为i，再加-er，-est

　　easy—easier—easiest

　　④ 重读闭音节，词尾只有一个辅音字母，双写该辅音字母，再加-er，-est

　　fat—fatter—fattest　　thin—thinner—thinnest

　　⑤ 多音节和部分双音节，在词前加more，most

　　beautiful—more beautiful—most beautiful

　　careful—more careful—most careful

　　⑥ 不规则变化

　　good/well—better—best

　　bad—worse—worst

　　many/much—more—most

　　2. 比较级的使用注意事项。

　　（1）比较的成分应属于同类事物或同类概念，也就是说比较要具有可比性。

　　我的花园比汤姆的花园漂亮。（选出正确的翻译）

　　My garden is more beautiful than Tom’s. （ √ ）

　　My garden is more beautiful than Tom. （　　）

　　（2）比较级与倍数词的关系及其位置

　　原级结构中可插入表达倍数的词，表示“……若干倍”，当与表示比较的词在一起时，它们的位置是：倍数词+  as...as/倍数词+比较级+ than...。

　　The elephant weighs many times more than the panda.

　　大象是大熊猫的许多倍重。

　　（3）“比较级+ and +比较级”或“more and more/less and less+原级”结构表示“越来越……”，与这类结构搭配的常用动词有grow，get，become等。而“the+比较级...， the+比较级... ”表示“越……越……”。

　　Things are getting worse and worse.

　　事情变得越来越糟糕。

　　The more trees we plant，the cleaner the air will be.

　　我们种的树越多，空气就会越干净。

　　（4）比较级前面可以用even，much，a little，a lot，far等修饰语来加强语气。

　　It is even colder today than yesterday.

　　今天比昨天更冷。

　　3. 最高级的使用注意事项。

　　（1）最高级比较范围用介词in，of，among等来表示。

　　He is the tallest in our class. 他是我们班最高的。

　　（2）比较级形式表示最高级意义时，比较对象的范围应用：any other +单数名词；the other +复数名词；the others；anyone/anything else。

　　He is taller than any other student in our class.

　　他比我们班其他任何学生都高。

　　4. 同级比较的使用注意事项。

　　（1）表示两者在某一方面相同时，用“as+形容词或副词的原级+ as”的句型。

　　I think science is as important as math.

　　我认为科学和数学一样重要。

　　（2）表示一方在某一方面不及另一方时，用“not as/so+形容词或副词的原级+ as”的句型。

　　It’s not as/so warm today as yesterday.

　　今天不如昨天暖和。

　　Step 7　Summary

　　In this lesson，we have learned：

　　1. New words：achievement，southwestern，thick，include，freezing，condition，succeed，challenge，achieve，force，nature，ocean.

　　2. Phrases：take in，in the face of，even though （= even if），the Pacific Ocean.

　　3. Sentences：（1）One of the world’s most dangerous sports is mountain climbing.

　　（2）It is 8，844. 43 meters high and so is very dangerous to climb.

　　（3）It is also very hard to take in air as you get near the top.

　　（4）The spirit of these climbers shows us that we should never give up trying to achieve our dreams.

　　4. Master the different sentence structures of the com-paratives and superlatives with adjectives and adverbs.

　　Step 8　Homework

　　1. Review the new words and phrases in Section A 3a-4c.

　　2. Preview the new words in Section B 1a-1d.

　　3. Retell the passage.

板书设计

教学反思