青少版新概念1B--Unit-18知识总结

Unit18笔记1.Let's=Letus...后跟动词原形，意思是“让我们做……事吧”e.g.Let'sgohome.翻译：我们跳舞吧。我们做游戏八吧。让我们去游泳吧。让我们去上学吧。2.cookdinner/lunch/breakfast一般情况下：一日三餐前不加the/ae.g.WehavelunchatschoolfromMondaytoFriday.Mymothercooksdinnerforusinmyfamily.3.列举名词，进行分类：可数名词、不可数名词可数名词不可数名词1）可数名词：单数可用one/a/an/the/this/that/形容词性物主代词复数可用some/any/the/these/those/形容词性物主代词可数名词变复数规则：①一般情况下，在单词后直接加s.例：apple--apples,ruler---rulers②以s,x,ch,sh结尾的单词，在单词后加es.例：bus---buses,box--boxes,watch--watches,brush--brushes.③以辅音字母加y结尾的单词，把y变为i,再加es.例：baby--babies以元音字母加y结尾的单词，直接加s.例：boy--boys④以f或者fe结尾的单词，把f或者fe变为v,再加es.例：knife---knivesleaf---leaves⑤部分以o结尾的单词，加es.例：tomato---tomatoes,potato---potatoes⑥特殊的单词：man--men,woman--women,people--people,child--children,sheep--sheep,fish--fish2）不可数名词：可用the/some/anyIsthereknifeinthedrawer?Yes,thereishere.Istherericeinthecupboard?Yes,thereishere.Isthereegginthefridge?No,thereisn't.Istheremilkinthebottle?No,thereisn't.Aretherespoonsontheshelf?Yes,there're.Wheremycoffee?inthejar.Theresomesugarinthatjug.4.openarestaurant/shop...open：①作为动词：打开Openthedoor,please.②作为动词：开办Wecanopenarestaurant/shop/school.③作为形容词：开着的Ourschoolgatesareopen.