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ments so that to make it clear to students what kind of sentences are better wanted. [Explanation] 經(jīng)過上一課時的學(xué)習(xí),學(xué)生對于克隆食品已經(jīng)具有了相當(dāng)?shù)闹R積累,因而他們已經(jīng)具備了初步的判斷力,在信中可以寫或者應(yīng)該寫些什么內(nèi)容,以小 組的形式讓他們進行討論,充分發(fā)揮他們的主體性,然后教師可以提出一些建議進行增刪。讓學(xué)生獨立完成 句子的構(gòu)造,給他們以思考的空間,然后同組之間進行句子修改以及在課堂上當(dāng)場交流所寫的句子可以讓學(xué)生突破小范圍思維的局限,精益求精。 Step 3 Structure of the letter (PPT812) 1. Introduce the format of a letter. Ask students to keep something while changing the job title. 2. Reread the letter on P56 and focus on the beginning and ending paragraphs. 3. Introduce more phrases to start and end a letter. 4. Students work in groups to develop their o