英语八年级下册Section B免费教学设计
展开设计说明
在教本课时内容时,首先将课本1a中的两幅图画投影到大屏幕上,让学生们就所列数字进行提问,及时复习如何表达量,自然导入本课的重点——倍数的表达。鼓励学生以小组合作的方式提问并写出尽可能多的句子。在合作中可以激发学生的参与意识,培养他们的合作能力。本节课的另一个难点是小数的读法。在听之前,先将1b所列数字呈现在黑板或大屏幕上,帮助学生读出所列数字,为下一步的听力排除障碍。为了让学生更好地掌握听力内容,在完成1c任务之后,增加一个信息表格。在学生完成表格之后,后面的练习是就表格所列事实进行比较,达到语言输出的目的。
教学目标
1. 知识目标
(1)掌握单词和短语:cm (= centimeter/centimetre),weigh,birth,adult;at birth,up t。
(2)掌握句型:①This elephant weighs many times mre than this panda. ②At birth,a baby panda is abut 0. 1 t 0. 2 kils. ③At birth,a baby panda is abut 15 cm lng. ④A panda can live up t 20 t 30 years.
2. 能力目标
(1)能够掌握课文中出现的重点句子,学会表达事物之间的倍数关系。
(2)熟悉量的表达,尤其是小数点的正确读法。
3. 情感目标
通过对大象和大熊猫的了解,激发学生对野生动物的关爱之情,培养保护环境的意识。
重点难点
1. 重点:
(1)熟悉量的表达,尤其是小数点的正确读法。
(2)学会更多表示比较的句式,如倍数的表达等。
2. 难点:
学会更多表示比较的句式,如倍数的表达等。
教学准备
多媒体课件
教学过程
Step 1 Check the hmewrk
1. Retell the passage n Page 51.
2. Cmplete the wrds accrding t the Chinese meaning.
(1)重量是……;称……的重量:we igh
(2)出生;诞生:bi rth
(3)adj. 成年的;成人的 n. 成人;成年动物:adult
3. Translate the fllwing phrases.
(1)出生时:at birth
(2)到达(某数量、程度等);至多有;不多于:up t
Step 2 Warming up
(Shw the questins n the screen.)Discuss the fllwing questins. Students can add mre questins.
What’s the biggest animal in the sea?
What’s the biggest animal n land?
What’s the smallest animal in the wrld?
What’s the mst famus animal in China?
Step 3 Presentatin
a baby panda an adult panda
Use the pictures t teach the new wrd:adult.
Step 4 Practice (1a)
1. Shw the pictures n the screen.
2. Have students ask as many questins as they can.
Example questins:
Hw tall is the elephant?
Hw heavy is the elephant? /Hw much des the elephant weigh?
...
3. Lead students t read the example sentence. Then have students cmpare facts abut these tw animals. They can wrk in grups t write as many sentences as they can.
4. Check their wrk.
Answers will vary.
Step 5 Listening
1. Wrk n 1b.
(1)Write the numbers in the bx n the blackbard,and then have students read the numbers.
(2)Play the recrding fr the first time. Students listen and check the numbers they hear.
(3)Let the students listen fr the secnd time and check the answers.
Answers:√100 √20 √0. 1 √0. 2 √150
2. Wrk n 1c.
(1)Have students lk thrugh the sentences and predict the answers.
(2)Play the recrding again. Students listen and cmplete the sentences.
(3)Check the answers.
Answers:1. 0. 1,0. 2 2. 15 3. pink,teeth 4. 20,30
3. Listen and fill in the chart.
4. Take turns telling yur classmates abut pandas. Fr example:
A:A baby panda cannt see.
B:An adult panda weighs many times mre than a baby panda.
Ask several pairs t shw their cnversatins t the class.
5. Let students use the new wrds t talk abut their friends.
6. Let students wrk in grups t check each ther’s answers.
Step 6 Free talk
Let students make their wn cnversatins by using the new wrds and sentences they have learned in this lessn.
Step 7 Cperative inquiry
Discuss the fllwing language pints in grups and fill in the blanks.
1. 英语中倍数的表达法
(1)倍数+形容词或副词的比较级+ than...
This rpe is twice lnger than that ne.
这根绳是那根绳的两倍长。
This car runs twice faster than that truck.
这辆小汽车的速度是那辆卡车的两倍。
(2)倍数+ as+形容词或副词的原级+ as...
The plane flew ten times as high as the kite. 那架飞机的飞行高度是那个风筝的十倍。
2. 小数点的读法
(1)不满“1”的小数的读法
小数点读作pint,小数点左边的零读作zer,也可不读。小数点右边的小数部分按个位数的基数词依次读出。在小数点后遇到零时,多读作字母“”的音。例如:
0. 3:zer pint three 0. 105:zer pint ne five
(2)整数带小数的读法
小数点左边的整数部分按整数读法读出。小数点右边的小数部分按个位数的基数词依次读出。在小数点后遇到零时,可读作字母“”的音。例如:
5. 02:five pint tw 8. 24:eight pint tw fur
Step 8 Summary
In this lessn we have learned:
1. New wrds:cm(= centimeter/centimetre),weigh,birth,adult.
2. Phrases:at birth,up t.
3. Sentences:(1)This elephant weighs many times mre than this panda.
(2)At birth,a baby panda is abut 0. 1 t 0. 2 kils.
(3)At birth,a baby panda is abut 15 cm lng.
(4)A panda can live up t 20 t 30 years.
4. Cmpare facts abut pandas and elephants.
Step 9 Hmewrk
1. Read and memrize the new wrds,phrases and sentences in this lessn.
2. D a survey f yur classmates and talk abut yur favrite animals with them.
3. Preview the new wrds and phrases in Sectin B 2a-2e.
板书设计
A baby panda
An adult panda
Weight
abut 0. 1 t 0. 2 kils
arund 100 kils
Size
arund 15 cm lng
arund 150 cm lng
Clr
pink
black and white
Lifespan(寿命)
A panda can live up t 20 t 30 years.
UNIT 7 What’s the highest muntain in the wrld?
Perid 3 (Sectin B 1a-1d)
cm(= centimeter/centimetre)
weigh birth
adult at birth
up t
This elephant weighs many times mre than this panda.
At birth,a baby panda is abut 0. 1 t 0. 2 kils.
At birth,a baby panda is abut 15 cm lng.
A panda can live up t 20 t 30 years.
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