仁愛版初三英語上冊全冊教案4

創設語境，呈現新詞匯。然后閱讀1a，完成1b。讓學生了解全球定位系統，培養學生的快速閱讀能力。
1. (緊承上面的話題，以手機為切入點，導入新課。)
t: cellphones are widely used all over the world. it’s reported that over 93% of families in cities own cellphones, but cellphones could be lost easily. have you watched the movie “a world without thieves”?
ss: yes.
t: in the movie, a lot of cellphones were stolen by “liu dehua”. we all know that a thief would run away very quickly and then hide in a secret place as soon as he or she steals a cellphone. in the past, he or she couldn’t be found. but nowadays, one of the new technologies can be used to find the lost cellphones easily. is it amazing? ok, let’s read 1c and think about the question: why the lost cellphones could be found easily now?
(板書并要求學生理解thief；掌握run away。)
thief
run away
(一分鐘后。)
t: have you finished reading? do you want to know the answer? well, let’s begin the new lesson.
2. (播放多媒體，簡單介紹gps，讓學生了解其意義，展示gps的背景知識。)
t: look at the screen. gps is short for the global positioning system.
(板書并要求學生理解。)
global
t: gps is like man-made stars. we can use it at any time, in any place and in any weather to find out our position. the early explorers used the stars as landmarks to know where they were and in which direction they were going. this method worked well at night as long as the weather was good. but it didn’t work so well during the rest of the time.
(板書并要求學生了解。)
landmark
3. (播放1a錄音。要求學生認真聽錄音并注意畫出關鍵詞。教師板書。)
t: boys and girls, just now i talked something about gps. now let’s listen to the tape to learn a passage about gps, please underline the key words.
(板書)
question, explorers, landmarks, find out, direction, as long as, problem, like, use, shape
step 3  consolidation 第三步  鞏固(時間:8分鐘)
利用關鍵詞及1b中的問題復述1a，完成1c。鞏固所學的知識，提高學生的英語表達能力。
1. (讓學生閱讀1a，然后討論1b中的問題，四人一組完成1b。)
t: please read 1a carefully and discuss the questions in 1b in groups of four, then finish 1b.
(學生討論完后，小組長要整理好答案匯報。教師抽查部分小組的答案，再歸納總結。)
2. (根據板書的關鍵詞來復述1a，分男、女兩組以競賽方式進行，激發學生的興趣，熟悉所學的知識。)
t: boys and girls, let’s begin our competition to retell 1a. question.
girls: that was a big question when we first explored our world long ago.
t: explorers.
boys: the early explorers found that the stars in the sky were good landmarks.