仁愛版初三英語(yǔ)上冊(cè)全冊(cè)教案2
example:
s1: i’m jane and studying at ren’ai international school. in my spare time, i am working for an organization that protects the environment …
step 4 practice 第四步 練習(xí)(時(shí)間:10分鐘)
聽錄音，完成2，讓學(xué)生掌握科學(xué)處理生活垃圾的方法。然后導(dǎo)入學(xué)習(xí)并列句，完成3。
1. (讓學(xué)生聽錄音，完成2。)
t: please listen to the tape carefully. you’ll hear four people talking about environment protection. then finish 2.
(聽兩遍錄音后，師生共同核對(duì)答案。)
2. (教師讓學(xué)生判斷下列句子陳述的內(nèi)容是否是改善環(huán)境的行為，引出while, but, and, or引導(dǎo)的并列句。)
(展示小黑板。)
(1) we should use plastic bags as few as possible.
(2) we should throw the garbage in the river.
(3) we should reduce the waste we produce.
(4) we should use both sides of paper.
(5) we should throw the plastic bags rather than reuse them.
(師生共同核對(duì)答案。)
t: look at the five sentences. if you think the statement is good for our environment, you nod your head, and it means agreement, (教師做點(diǎn)頭狀并重讀nod。) or you shake your head, and it means disagreement. (教師做搖頭狀并重讀shake。)
(板書且要求學(xué)生掌握。)
nod
agreement
shake
(教師出示小黑板上的句子，講解while, but, and, or引導(dǎo)的并列句。)
(1) you nod your head and it means agreement.
(2) hurry up, or you’ll miss the train.
(3) water is important but some people don’t save it.
(4) some people protect animals while others kill animals.
(教師讓學(xué)生討論畫線部分的單詞在句中起到什么作用，前后兩個(gè)句子是什么關(guān)系。)
t: let’s look at the sentences. pay attention to the words underlined. what’s the function of them? what’s the relation of the two parts in each sentence?
(學(xué)生討論后，教師引導(dǎo)學(xué)生一起分析這些句子，總結(jié)并列句的定義及用法。)
(1)并列句的定義
(2)并列句的用法
①表示并列關(guān)系，用and…
②表轉(zhuǎn)折，用but, while…
③表選擇，用or…
3. (讓學(xué)生依照3中的例句，完成3。)
t: please join the sentences in 3 with “or”, “and”, “but” or “while” after the example.
(學(xué)生完成后，教師檢查并核對(duì)答案。)
step 5 project 第五步 綜合探究活動(dòng)(時(shí)間:4分鐘)
通過(guò)對(duì)生活垃圾的不同處理方式的引導(dǎo)，讓學(xué)生增強(qiáng)環(huán)保意識(shí)。
1. (教師利用多媒體，呈現(xiàn)一些生活垃圾的圖片，讓學(xué)生判斷怎樣科學(xué)地處理它們才能更環(huán)保。)
t: look at these objects in the picture. which can be reused, reduced or recycled?
(教師讓學(xué)生分組討論，回答并核對(duì)答案。)
2. homework:
write an article about the three rs in your daily life.
板書設(shè)計(jì)：
would you like to be a greener person?
section a
be supposed to do sth. 1. you nod your head and it means agreement.
reduce 2. hurry up, or you’ll miss the train.