英語人教版四年級下冊Unit 4 At the farm ALets talk.doc

四年級英語下冊Unit 4 At the farm A Lets talk 教案 內(nèi)容分析： 本部分學(xué)生學(xué)習(xí)的核心句型是：Are these carrots？Yes, they are. No, they arent. 以及What are these？Theyre tomatoes. 教材通過Mike與Sarah參觀農(nóng)場并與農(nóng)場主人對話的情景然學(xué)生感知上述句型的語義及語用情景。 本部分的教學(xué)目標(biāo)是：學(xué)生能夠理解對話大意，能夠用正確的語音、語調(diào)朗讀對話；能夠在情景中運用句型Are these.? Yes, they are. What are these? Theyre. 詢問物品名稱并回答；能夠在情景中恰當(dāng)運用句型Theyre good / so big! 描述物品特點；能夠在語境中理解新詞carrot和tomato的意思，并能正確發(fā)音。 本課時核心句型是涉及名詞復(fù)數(shù)形式的特殊疑問句和一般疑問句，這一知識點在四年級上冊第四單元的B Lets talk出現(xiàn)過一次，本冊學(xué)生用書的前三個單元均未有涉及。創(chuàng)設(shè)適當(dāng)語境讓學(xué)生充分感受并理解名詞單、復(fù)數(shù)的意義以及相應(yīng)句型的變化，并能在情景中正確運用和表達。 教學(xué)步驟：1 Warm up Listen the song Mary has a little lamb2 Revision The words of fruits and animals.教師引導(dǎo)學(xué)生說出所學(xué)的水果和動物3 Presentation and practice1.呈現(xiàn)與操練從處理局部語言到呈現(xiàn)完整對話（1） What are these? Theyre. 話輪的呈現(xiàn)與操練。師生圍繞單詞red做頭腦風(fēng)暴（Brainstorm）游戲。教師板書單詞red ，然后出示一支紅色的鋼筆，板書：a red pen. 教師問：What else can be red? 引導(dǎo)學(xué)生說詞組，如：a red kite, a red apple等，教師用簡筆畫畫出相應(yīng)物品。最后教師說：I know a kind of red vegetable. Its round. Its juicy. What is it? 教師在黑板上畫一個西紅柿，說：Look！Its a tomato. 板書：Its a t_m_t_. 請學(xué)生嘗試填出所缺字母并朗讀單詞。教師再畫一個西紅柿，引導(dǎo)學(xué)生說：Theyre tomatoes. 教師板書句子Theyre tomatoes.提示學(xué)生注意tomato一詞的復(fù)數(shù)變化，幫助他們理解Its a tomato.和Theyre good.兩個句子的不同含義。教師手指西紅柿圖描述：Theyre tomatoes. Theyre red. Theyre good. Theyre yummy. 同桌學(xué)生結(jié)對練習(xí)運用Theyre. 描述tomatoes。教師繼續(xù)描述：Theyre Yellow. Theyre small. Theyre yummy, too.What are they?學(xué)生嘗試猜測后，教師引導(dǎo)學(xué)生用What are these?提問。教師可板書句子：What are these?然后出示he, she, we等單詞幫助學(xué)生根據(jù)發(fā)音規(guī)則拼讀單詞these。最后教師出示黃色西紅柿圖片，說：Theyre tomatoes,too. Theyre yellow tomatoes.師生做“抓單詞”（Catch the words ）游戲師生快速出示一種水果或蔬菜的圖片（圖片中水果或蔬菜數(shù)量應(yīng)該等于或多于兩個），問：What are these? 引導(dǎo)學(xué)生用Theyre.回答。最后，教師呈現(xiàn)胡蘿卜的圖片，教學(xué)carrots， 并引導(dǎo)學(xué)生說： Theyre so big! 同桌學(xué)生用red tomatoes, yellow tomatoes和carrots操練句型What are these? Theyre . Theyre so .! (2) Are these carrots? Yes ,they are.話輪的呈現(xiàn)和操練教師問：Where can we see these vegetables? 然后用簡筆畫畫一些籬笆或課件出示農(nóng)場背景，說：We can see them at a farm. 教師板書farm, 然后引導(dǎo)學(xué)生拼讀改單詞。教師說：Now lets go to a farm. 教師利用圖片或課件呈現(xiàn)兩株開著黃色花朵的西紅柿苗，問：What are these? Can you guess? 引導(dǎo)學(xué)生使用Are these.?進行猜測，教師適時出示花朵凋謝后結(jié)出紅色果實的西紅柿圖片。教師利用課件展示胡蘿卜種子發(fā)芽、長出幼苗、開花和結(jié)果的過程，然后問：Are they carrots? 學(xué)生用Yes, they are. 或No,they arent.進行判斷。學(xué)生看圖分角色操練對話，對話示例如下：S1：Look at these! Are these.?S2：Yes, they are. / No,they arent.S1：What are these? S2：Theyre.1.Game.Guessing game.教師說謎語，引導(dǎo)學(xué)生用Are they?來猜猜是什么蔬菜。 They are red. They look like apples, but they aren t apples. What are they? They are tender and green. What are they? They are long and orange. Rabbits like eating them. What are they? They are round, pink and white. What are they? They are brown. French fries are made of them. What are they? 學(xué)生猜對了，教師回答Yes，they are. 并拿出相應(yīng)的單詞卡片請學(xué)生拼讀；如果猜錯了教師回答No, they aren t.再請其他人猜, 直到猜對為止。操作方法：先由教師示范回答，然后換由另一個學(xué)生回答。2. Look and say.(1) 教師說：Mr MacDonald has a big farm,too. Lets go and have a look.教師出示對話圖片，問：Who is at the farm? 引導(dǎo)學(xué)生看圖回答問題。教師將對話中Mr MacDonald 說的句子鏤空，請學(xué)生嘗試補充對話。關(guān)于第三幅圖的Try some.這個句子，建議教師引導(dǎo)學(xué)生根據(jù)圖片信息猜測句子的意思，如學(xué)生說出Have some tomatoes. 教師要予以表揚并順勢引出Try some tomatoes.(2) 教師播放對話動畫，學(xué)生觀看并跟讀。(3) 同桌學(xué)生結(jié)對表演對話?？梢员硌菡卧挘部蓢@任意一幅或兩幅圖展開對話。(4) 教師問：What else can you see on the farm?鼓勵學(xué)生大膽想象，說出一些動物或水果類的詞匯。課件或圖片呈現(xiàn)一些動物和水果圖片，如：apples,pears,dogs,cats等，同桌結(jié)對，分別扮演Mike或Sarah和Mr MacDonald看圖創(chuàng)編對話。教師提醒學(xué)生運用板書中的句型。(5) 師生做