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1、dare用法辨析,词汇辨析:,dare,2. 通常只用于否定句或疑问句以及if或whether之后,2. Dare you tell her the truth when you see her?见到她你敢告诉她事实真相吗?,1. I wont allow you to do it even if you dare do it就是你敢做我也不让你这样做。,dare,2.其后多接带 to 的不定式，有时 to 也可省去,3.可用于非谓语形式,2. I wonder how he dares (to) say such things.,1. We dont dare (to) look into
2、her eyes.,3. The boy stood before the teacher, not daring to look up.,1. I dare say 是习惯说法，并不一定要译为“我敢说”，常译为“很可能、大概、我想”等，有时用作反语。,Attention:,1. I dare say nothing can change his mind.我认为没有什么可以改变他的主意。,2. I dare say it will rain on Monday because Im beginning my holiday. 我想星期一或许会下雨，因为我将开始休假。,2. 情态动词dare可
3、以有过去式dared，但也可以直接用dare直接表示过去式，或后接动词完成时。,Attention:,1. She dared not tell me she had given away my old jacket.,2. I didnt like their new house though I darent have said so.,1. I dare not (say) what I think.,解析：dare后面直接加not，为情态动词，后面加动词原形。,填入合适的词，补全句子。,考点追击,say,2. She is a bit shy and doesnt dare _ (st
4、and) up and answer the teachers questions.,解析：dare为实意动词，后接带 to 的不定式，在否定句中to也可省略。,(to) stand,3. The girl (not dare) to go home alone last night,解析：dare为实意动词，后接带 to 的不定式，否定句中要加助动词。,didnt dare,4. Who (dare) to jump over the stream?,解析：dare后接了带 to 的不定式， dare为实意动词，主语为特殊疑问词，谓语动词用单数。,dares,in case，in case
5、of和in that case,短语辨析,case为中心的短语,1,in case,2. Youd better take warm clothes in case the weather is cold. 你最好带些暖和的衣服，以防天气变冷。,1. I wrote down her address in case I forgot it. 我记下了她的住址，免得忘了。,2,in case,2. In case he arrives before I get back, please ask him to wait. 如果他在我回来之前到，请让他等等我。,1. Take a hat with
6、you in case the sun is very hot.倘若太阳很厉害，你就把帽子戴上。,1. 当主句为将来时态时， in case从句谓语不能用将来时态，而要用一般现在时表示将来意义。,2. Ill pack an extra shirt in case it rains tomorrow.,1. Ill keep a seat for him in case he changes his mind.,Attention:,2. in case表示“以防；以防万一” ，还可以用作副词。,2. The sun is shining, but Ill take an umbrella j
7、ust in case.,1. Youd better carry some money in case.,in case of,2. In case of fire, you must keep calm and call 119.假如遇上火警,你必须保持镇静并打119报火警。,1. In case of rain, the wedding will be held in the hotel. 如果下雨，婚礼就在酒店举行。,in case of短语置于句末常看作目的状语，意为“以免；以防” 。,2. Turn off the TV set in case of thunderstorm.,1
8、. The wall was built along the river in case of floods,Attention:,in that case,2. In that case, wed better hold a discussion about the problem.既然那样，我们最好对这一问题展开讨论。,1. He may not be back at six. In that case we wont wait for him.他可能六点钟回不来。既然那样, 我们就不等他了。,in this case 表示“既然这样；假使这样的话”in any case 表示“无论如何”
9、in no case 表示“绝不”,2. In any case, Ill come over to the office tomorrow.,1. You dont like your job. In this case, why dont you leave?,拓展:,3. In no case shall we allow smoking in the classroom.,1. In case he (escape), Ill lock the door.,解析：主句为将来时态时， in case从句要用一般现在时表示将来意义。,考点追击,语法填空。,escapes,2. that c
10、ase, wed better take a spare tyre along.,解析：in that case表示“既然那样；假使那样的话” 。,In,1. I always take something to read when I go to the doctors in case of I have to wait.,解析：in case为连词，表示“以防；以免”，引导状语从句，表示目的。,单句改错。,2. In case difficulty, you can call the operators.,解析：in case of是短语介词，后接名词或代词作宾语。,of,Bye-bye!,