初中英语人教版八年级下册sectionA.doc

第2课时 Section A 3a-4c教学目标一、知识与技能1. 掌握常用动词的过去分词的拼写形式以及熟练掌握already，yet在现在完成时中的应用。2. 体会现在完成时在阅读文章鲁滨逊漂流记中的应用以及对阅读文章的理解分析。3. 熟练掌握 already，yet 在现在完成时中的用法。 4. 掌握常用动词的过去分词形式。5. 使用阅读技巧对阅读文章进行理解与分析。二、过程与方法将抽象知识具体化，帮助学生总结规律，系统地学习语法。调动学生的积极性，引导他们积极参与课堂。三、情感态度与价值观通过对鲁宾逊漂流记节选部分的学习，引导学生在生活和学习中要不抛弃不放弃。教学重点1. 体会现在完成时在阅读文章鲁滨逊漂流记中的应用以及对阅读文章的理解分析。2. 熟练掌握already，yet在现在完成时中的用法。教学难点1. 使用阅读技巧对阅读文章进行理解与分析。2. 熟练掌握already，yet在现在完成时中的用法。教法导航通过大量练习让学生主动掌握语法知识。学法导航练习、讨论、主动探求规律。教学准备多媒体。教学过程Step 1 GreetingsGreet the students as usual.Step 2 PresentationIntroduce the movie：Robinson Crusoe.The teacher shows some introductions on the screen to arouse the students interests.Step 3 Learn the new wordsship，tool，gun，sand，else，cannibal，towards，land.Step 4 Reading3a, Read the passage and answer the following questions： What does Robinson Crusoe wait for? Why does Robinson Crusoe call the man Friday? 3b, Read the passage again. Find words that have these meanings.1. You can use these to shoot things： _2. Something you use to travel in the sea： _3. A piece of land in the middle of the sea： _4. You can use these to cut things： _5. Signs left behind by someone or something： _3c, Correct the sentences:1. Robinson Crusoe arrived on the island with enough food and drink.2. Friday made a small boat.3. Robinson had some food and tools when he first arrived on the island. 4. Robinson used the ship to build a house.5. Friday saw some marks of another mans feet on the beach.6. Robinson tried to kill the two men.After they finished the questions and let them check the answers.Then get them read aloud the passage again and the teacher helps deal with the difficult points.1) I will not give up and I will wait for another ship. 因此我不放弃，要等候另一只船。another 既可用作形容词，也可用作代词。用作形容词时，意思是“又一的；再一的”，修饰名词，位于名词前；用作代词时，意思是“另一个”。e.g. Just at that time，another man came in.Saying is one thing and doing is another.another还可以和数词连用，常放在数词的前面，意为“还；再；又”。e.g. We need another three man to help do the work.2) Not long after that，I saw some cannibals trying to kill two men from a broken ship.在那之后不久，我看见一些食人肉质在试图杀死两个来自破船上的人。see sb. doing sth.意为“看到某人正在做某事”，强调看到的动作正在进行。e.g. Mary saw him cleaning the classroom. 玛丽看见他正在打扫教室。see sb. do sth. 意为“看到某人做了某事”，强调看到动作的全过程。e.g. Mary saw him clean the classroom. 玛丽看见他打扫教室了。3) I named him Friday because that was the day I met him. 我管他叫Friday因为那是我遇见他的那一天。name作动词，意为“命名；给取名”。固定搭配“name + sb. + 名字”意为“给某人取名为”。e.g. Lucy named her little son David. 露西给她的小儿子取名为戴维。Step 5 Grammar FocusRead the following sentences (让学生体会现在完成时的用法)。师生共同总结出下列内容：1.表示过去发生或已经完成的某一动作对现在造成的影响或结果。e.g. -Have you had your lunch yet? -Yes，I have. Ive just had it. (现在我不饿了)2. 表示动作或状态从过去某一时刻开始，一直延续到现在，而且可能还要继续下去。e.g. I havent seen her these days. Ive known Bob for three years. Ive been at this school for over two years. 时间状语 already，yet，just，ever，never，before；for + 时间段；since + 过去的时间点；since + 段时间 ago；since + 一般过去时的句子。构成：现在完成时是由“助动词have /has+ 动词的过去分词”构成的，规则动词的过去分词构成与过去式相同，不规则动词的过去分词则需逐个记忆。 Step 6 PracticeExercises 1. go through the tasks in 4a and 4b，then finish 4a and check the answers. Keys：I have just drunk some tea. Have you found it? He has already left. did he leave? She has already seen the film.I havent told them yet.2. Finish 4b and check the answers.Keys：loves，has read，will be，finished，will write，hasnt read.3. Finish 4c and check the answers.Make conversations and complete the chart. (Follow the conversation on page 60)Step 7 HomeworkSum up what they have learned in this lesson.课堂作业用所给单词的适当形式填空。1. Judy has already _ (finish) reading Little Women.2. Tom and Mike have already _ (decide) to learn Chinese on Internet.3. Have you _ (read) Alice in Wonderland yet?4. Robinson _ (have) already built a house on