江苏省东台市唐洋镇中学八年级英语上册《unit 4 wild animals》第五课时grammar 1学案无答案 牛津版.docVIP

《Unit 4 Wild animals》（第五课时）Grammar 1学案 知识目标 A学习并掌握 ‘if’引导的条件状语从句。 B学习并掌握 ‘because’, ‘because of’ 的用法及区别。 重点难点 ‘if’引导的条件状语从句中，用一般现在时表示将来，主句用一般将来时。 教学过程 Grammar A Step 1 Free-talk: What’s the weather like today ? .etc. Step 2: Revision: Revise what we have learned in Vocabulary and check homework.. Step 3 :lead-in: T: In reading ,we learned something about the giant panda-Xi Wang Can you still remember : ** If hunters catch a panda, what will they do? ** If people find pandas alone what will they do? Ss:… . Step 4 : Presentation: Task 1: Ask and answer: Write some more open “If”-clauses on the Bb and ask Ss to finish the sentences with their own ideas . Task 2 : Do PartA1:Ask Ss to match the sentences on their own and then compare answers with a partner. Invite a more able student to read the sentences aloud for the rest of the class to check answers. Task 3 :Identify Task 2 :Read all the sentences again and ask more able Ss to elicit the rule.(主将从现) Step 6 :Practice T Part A2: Ask Ss to complete the sentences on their own and thencompare answers with a partner. Check answers with the whole class. Task 2 : Ask Ss to complete “Work out the rule” at the bottom of page 65. Task3 : Part A3: Ask Ss to complete the sentences on their own and then compare answers with a partner. Check answers with the whole class. (** If time permits , do some extra exercises.**) Step 7 : Translation: 1如果狼饿了，它会干什么？ 2如果老虎有了虎仔， 他们将会群居在一起。 3如果大象渴了他们将会寻找水源。 【预习指导】 if引导的条件状语从句 在表示假设情况的条件状语从句中，主句用一般将来时，从句用一般现在时，当从句放在主句之前时用逗号将主句与从句分开，反之则不用逗号。 If he comes , I will call you. If it rains , we will have to put off the match. They will come to your party if you invite them. We will go fishing if it doesn’t rain tomorrow. 当我们把 ‘if’引导的条件状语从句放在句子开头时，我们需要在条件状语从句后用逗号。假如主句在开头，则没有必要加逗号。 We need a _______(comma, full stop) after the ‘if’-clause when it is the first part of a sentence.