译林版九年级上册英语教案 Unit 4 Growing up 课时4

1、Unit 4 Growing upGrammar1. Learn about the adverbial clauses introduced by before, after, when, while, till and until, as soon as and whenever.2. Learn about the adverbial words.3. Know how to do exercises about adverbial clauses and what they need to pay attention to while doing such exercises.4. U

2、se the object clauses correctly.Some key words, phrases & sentences：against，feel tired out, become serious about basketball, take part in；Until his dream came true, Spud never gave up.Step 1: Lead- in1. You have been happy since I first met you.2. Dont wake me up until you finish building it.3.

3、When he finally got the chance, he scored 2o points in his first game.4. After he graduated, he was forced to play in another basketball league.5. While（he was）attending junior high, Spud tried out for the school team.6. I can read books whenever I want to.7. As soon as I click the mouse, theres a g

4、reat deal of information.Let the students read the sentences and translate them into Chinese and tell them they are time clauses. The conjunctions are：when, while, since ,until and as soon as, after, wheneverEncourage the students to say out the others. For example, before, till.Step 2：Presentation1

5、. Choose some students to read the sentences in the book and tell them the difference.When 引导的时间状语从句中可使用短暂性动词和延续性动词。While 引导的时间状语从句中只可以使用延续性动词。2. Let the students finish the exercises on Page 54 and check the answers.3. Explanations：since 引导的时间状语从句中通常使用一般过去时，而主句一般使用现在完成时。till不能用于句首也不能用于not until中的un

6、til.4. Let the students finish the exercises on Page 55.5. Help the students understand the meanings of as soon as and whenever , then let the students finish the exercises on Page 56.Step 3：Summary1. before, after, when, while, till, until, as soon as, whenever引导的时间状语从句中，如果主从句都是将来发生的动作，主句用一般将来时，从句用

7、一般现在时。2. since（自从）常与现在完成时连用。3. while（当时）引导的时间状语从句通常要用进行时。 4. before, after, since, till, until还可作介词，后接时间名词。5. 当主句和从句的主语是同一个人时还可用：before/ after/ when/ while doing sth.6. as soon as 引导时间状语，表示 “一就”7. till和until通常可以互换，但当“直到”这词用于句首或与not连用时只能用until。Step 4：PracticeFinish the exercises on the self-study1. Revis