1、牛津英语 9B Unit1 Life on Mars 教案 Grammar（2）Objectives:To use clauses introduced by “that”To use object clauses introduced by “if”,or “whether”Main points :To use clauses introduced by “that”To use object clauses introduced by “if”,or “whether”Difficult points:To use object clauses introduced by “if”,or
2、 “whether”Teaching methods: Task-based teaching method, practiceTeaching proceduresStep 1: Revision.Revise the use of can, could ,may, mightStep2: PresentationTeach Object clauses.宾语从句属于名词性从句，在句中作主句的宾语。eg. We know Mr Green teaches English. She asked if these answers were right.宾语从句三要素（一）、引导词（连接词）,.由
3、从属连词 that 引导的宾语从句注：that 在句中无词汇意义，在从句中不能充当成分，在口语当中往往省略e.g. I hear (that) he will be back in an hour. He said (that) he missed us very much. The teacher told us (that) the earth moves around the sun.由从属连词 whether, if 引导的宾语从句if/ whether “是否”，说明对陈述的事物不明确或不清楚。常用在 ask, wonder, can(could) you tell me 等后。.只
4、能用 whether 不能用 if 的情况1).在介词后面：Im thinking of whether we should go fishing.We are worried about whether it will rain tomorrow.2).在动词不定式前：They asked me whether to go skating.3).当与 or not 连用，或 提出两种选择 时:I dont know whether hes free or not.Mary asked whether I was doing my homework or not.Tell me whether
5、 youd like to go shopping or tidy the room.4).宾语从句提前时：Whether this is true or not, I cant say.（二）语序：陈述句语序 即：主句+连接词+ 从句（主 +谓+其他成分）Do you remember _(他多大岁数)? （三）时态：主句用现在时或将来时，从句可用任何时态。主句用过去时，从句用与过去相关的时态。1.从句说明的是一般真理、客观事实、自然现象、名言时，仍用现在时。Dad told us that it is better to do than to say.He told the boy tha
6、t three and three is six.He told me the earth moves around the sun.2.从句中有具体时间状语，即使从句动作发生在主句动作前，仍用一般过去时。The teacher told me she was born in 1960.Step 3.Homework1. Fill in the blanks1. The radio says it _ cloudy tomorrow. (be)2. The headmaster hopes everything _ well. (go)3. Tom says that they _ (play
7、) basketball at six oclock yesterday evening. 4. I hear they _ (return) it already. 5. He said that they _ members of the Party since 1948. (be)6. He asked what they _ at eight last night. (do)7. The teacher told his class that light _ faster than sound. (travel)8. I think you _ about the murder now. (talk)2.将下列句子合并为一句:1. Do they like to go skiing? He asked. 2. He is doing his homework. He said. 3. He will come back. Tom said. 4. Is she doing her homework? Jim asked.
