人教版英语六年级上册Unit 2 第五课时-课件.pptVIP

Unit 2 Ways to go to school 第五课时;;;;;;New words:;重点句型分析 I must pay attention to the traffic lights. Must是情态动词，意为“必须”后面跟动词原形。 Don’t go at the red light! 此句是Don’t开头的否定祈使句,don’t后面跟动词原形。意为“不要做某事”。 let sb do sth 让某人做某事 sb=somebody 某人 sth=something 某事 Let me clean the windows.;小学一般现在时;二、变否定（找动词） 动原前加don’t；三单前加doesn’t后面动词改原形. 例如 I often play (动词原形) football in the park. ｛ ↓ I often don’t play(动词原形) football in the park. He watches(三单动词) TV at home. ｛ ↓ ↓ He doesn’t watch (动词原形)TV at home.;三、变疑问（找动词） 动原句首加do；如果动词是三单，助动词does句首请,主语紧随在其后，动词改原形。 例如：They go (动词原形) to school on foot. ↙ ↓ Do they go (动词原形) to school on foot? She goes (三单动词) to school by bus. ↙ ↓ Does she go (动词原形) to school by bus?;一般现在时动词?“单三”?的变化规则 1.?一般在动词结尾直接加s ?? e.g.? help --- helps?????? climb --- climbs ?????? ?? talk --- talks?????? sing --- sings 2. 以s, x, ch, sh, o结尾的动词加es; ?? ?e.g. teach --- teaches???guess --- guesses ????????? wash --- washes??? watch --- watches ????????? go --- goes??????? ?do --- does 3．?如果词尾已有e, 直接加s ????e.g. close --- closes????? dance --- dances ???????? love --- loves??????? like --- likes 4.?以辅音字母 + y结尾的动词, 变y为i后, 加es ?? e.g. study --- studies??? fly --- flies? 5.?以元音字母+ y结尾的动词,?结尾加s;?? e.g. play---plays say ---says. stay---stays ;Thank you!