江苏省沭阳县银河学校七年级英语下册《Unit 6 Pets Grammar》课件 牛津版.ppt

grammar unit6pets 祈使句是表示请求 给予命令或指示的句子 它的主语是you 听话者 通常省略 把后面的谓语动词置于句首 并且谓语动词一律用原形 一 祈使句 imperativesentence 1 祈使句的肯定形式 各种动词原形 宾语 表语 不加 如 standup please passittome bequiet bepolite don tberude lookout please 2 祈使句的否定形式 donot don t 谓语动词原形 如 don topenthedoor please don tsitdown pleasedon tbelateagain please可放句首或句尾 不影响动词和整句话 温馨提示 表示禁止时 尤其是标语等也可用 no 名词 动词 ing 来表示 如 nophotos 禁止拍照 nosmoking 禁止吸烟 noparking 禁止停车 二 情态动词should和must should和must作为情态动词 都可表 建议 但是表示的程度不同 1 should用来表示 劝告 或 建议 意为 应当 应该 其否定形式为shouldnot或shouldn t 语气比较委婉 如 heshouldvisitmrgreen 他应该拜访格林先生 weshouldputonwarmclothesonsuchcolddays 在这样的冷天我们应该穿暖和的衣服 heshouldnot shouldn tgotoschoollate 他不应该上学迟到 youshouldnot shouldn twashdressesmadeofsilkinhotwater 你不该在热水里洗丝绸做的衣服 2 must用来表示坚定的建议 意为 必须 一定 其否定形式为mustnot或mustn t 表示 不可以 不许 如 youmusteatbreakfastontimeeveryday 你必须每天按时吃早饭 wilsonmusthandinhispapertomorrow 威尔逊明天必须交论文 doctorssayyoumustnot mustn teattoomuchsweet 医生说你一定不能吃太多的糖果 youmustn tsmokehere 你不可以在这里吸烟 1 don tplaygamesonthestreet you playgamesonthestreet 2 itisgoodtogiveseatstotheelderlyonthebus you giveseatstotheelderlyonthebus 3 it swrongtoplayatrickonothers you playatrickonothers practice i 写出下列各句的同义句 每空词数不限 shouldnot should shouldnot 4 itisgoodtowateryoungtreeseveryday you wateryoungtreeseveryday 5 keepthedoorclosed please thedoor please 6 pleasekeepthebowlscleantoday please thebowlstoday 7 hedoesn tknowhowheshoulddoit hedoesn tknowhow it should close don topen clean todo 8 hisdogbarkswhenithearsthetelephonering hisdogbarkswhenthetelephone 9 walkthedogat6 30a m thedog at6 30a m 10 ican tgooutwithyoubecauseihavetolookaftermymother ican tgooutwithyoubecauseihaveto mymother rings forawalk takecareof take ii 连词成句 1 clean twice the week cage must we a 2 should take of your care pet you good 3 must too not give your much money child you mustwecleanthecagetwiceaweek youshouldtakegoodcareofyourpet youmustnotgiveyourchildtoomuchmoney 4 brush every fur should day suzy her cat s 5 the frighten not girl do little 6 day every english her teach 7 feed beside his table dog the should jim shouldsuzybrushhercat sfureveryday donotfrightenthelittlegirl teachherenglisheveryday shouldjimfeedhisdogbesidethetable 8 your look you must pet after well 9 too to important night eat not it late is at 10 your bring pe