下列生物属于分解者的是（）A．水藻B．真菌C．大豆D．鱼-七年级生物

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• There is going to_____ a class meeting tomorrow.[ ]A. to beB. beC. haveD. has-七年级英语
• —Could you come to my birthday party?—Sorry, I ________.A. couldn’t B. can’t C. can-八年级英语
• --______ you leave now?---Yes, because I’m meeting my aunt at 7:00 this evening.A．CanB．MayC．NeedD．Mu
• —Mr. Wang, must I come again to clean the window on Sunday morning?—No, you _____ . I have asked oth
• —Whatthe weathertoday? —It's cold.[ ]A. it;/B. is; likeC. does; likeD. can; be-七年级英语
• “I hope you _______ come and see me soon” said Grandma Li to her son.A．toB．canC．will beD．are going t
• —_______ youswim?—Yes,butI'mnotagoodswimmer.[ ]A.CanB.MayC.NeedD.Must-九年级英语
• —Mary,____you speak Chinese?—Yes, only a little. [ ]A. must B. need C. may D. can -八年级英语
• 有所给词的适当形式填空。1. Could you please _____ (sweep) the floor? 2. They have to _____ (get) home to do thei
• You ___________ finish the report today. Any time before this weekend is OK.A．mustn’tB．needn’tC．must
• 看图完成下列问题：在一片草原的生态系统中，昆虫以草为食，青蛙以昆虫为食．三者的相互关系用右图表示，图中各长方形的面积分别表示上述三种生物的数量，长方形越长表示该生物-七年级生物
• 在生态系统中______是生产者，能通过光合作用制造有机物；绝大多数______作为消费者，他们直接或者间接地以植物为食，营腐生生活的细菌、真菌是分解者．-七年级生物
• —Must I go there right now, mum?—No, you ____. You can go there tomorrow.A．shouldn’tB．can’tC．mustn’t
• 改错。1.The jeansmade of cotton. AB C2.May I use your notebook? Yes.I may.A BC3.Millie isdressing up a
• I ______ Lucy King. ______ you Li Lei? [ ]A. am; Am B. am; Is C . am; Are-七年级英语
• 用动词be的适当形式填空。1. I in Row 6.2. What your name?3.you ten? -七年级英语
• The number of the students in that school ________ three thousand.[ ]A. areB. is C. have D. has-八年级英
• – May I take the magazine out of the reading room?-- No, you can’t. You read it here. It’s the rule.
• -There is someone knocking at the door.- It ______ be Jimmy, he has gone to ShangHai .A．needn’tB．mus
• The light is still _________. Mr. Green _________ at home now. [ ]A. on, can be B. down, may be C. o
• 下列生物中属于消费者的是（）A．草B．食虫鸟C．细菌D．蘑菇-七年级生物
• 消费者指（）A．能自己制造有机物的生物B．不能自己制造有机物的生物C．能分解有机物的生物D．以上都不对-七年级生物
• —Hurry up, Mum. The lights are turned on. Dad has been back.—It _________ be him. He has gone to Sha
• 在生态系统中的物质和______就是沿着食物链和食物网流动的．-七年级生物
• Simon's shoes _____white. So this pair of shoes _______ his. [ ]A. is; is B. are; areC. is; are
• I want to _____ a doctor when I grow up. [ ]A. beB. doC. am D. is-七年级英语
• Thepolicestillhaven’tfoundher,butthey’redoingallthey.A．willB．canC．may D．must-九年级英语
• —Look! The man at the gate ______ be our headmaster. He is always standing there every morning.—No,
• ---Must I work out the problem right now?---Yes, you _______. It’s very serious. A．canB．mustC．mayD．s
• The cake__________ good. I can't want to eat it.[ ]A. feels B. soundsC. becomes D. smells-九年级英语
• — Must I do the rest of the work today?— No, you _________finish it tomorrow.A．mustB．canC．needn’tD．
• --Who’s the man over there?Is it Mr Black?----It _____be him.He’s much taller.A．mustn’tB．can’tC．shou
• “落红不是无情物，化作春泥更护花”，请从生态学角度分析，在落红化作“春泥”的过程中，起决定作用的是（）A．生产者B．消费者C．分解者D．水分-生物
• —Morn, must I clean my room now?—No, you. You can do it in the afternoon.A．mustn'tB．needn'
• 如图表示生态系统中四种成分之间的关系，请据图回答有关问题：（1）甲代表______，乙代表______．（2）图中的丁代表______．（3）丙在自然界物质循环中的重要作用是______．-七年级生物
• 句型转换。1. Its name is Hobo. (否定句) _____ __________Hobo2. He does his homework on Saturday evening. (一般
• One of my best friends ______ going to ______ a model when she grows up.[ ]A. are, be B. is , become
• – Could I use your mobile phone? I have to call my mom for the coming class meeting. --Yes, of cours
• This toy Mickey Mouse _______be Amy's. She's the only kid at the picnic.A．must B．can C．nee
• A: You_____ Tom. What_____ her name?B: I don't know.[ ]A. is, are B. am, are C. are, is D. is,
• I think Tom ________ to finish the difficult work in an hour or two. [ ]A. can't B. will C. is
• This toy Mickey Mouse _______be Amy's. she's the only kid at the picnic.A．mustB．canC．needD
• 细菌、真菌是生态系统中的______，动物是生态系统中的______．-七年级生物
• 根据生物与环境的知识回答下列问题：（1）在一定的地域内，生物与环境所形成的统一的整体叫______．（2）在生态系统中，动物是______者，植物是______者，它们之间吃与被吃的关系就-生物
• 北美的凯巴森林主要由松树、冷杉和云杉等植物构成，森林的底层还生长着多种草本植物．树上生活着快乐的小松鼠，以采集果实为生．森林中大约有4000多只黑尾鹿吃树叶或草本植物．-七年级生物
• — You went to town last month, What do you think of it?— Terrible . I _____ go there _____.A．Will; a
• Food safety is important. Rules____ to stop people from food pollution.A．must make B．must be madeC．c
• Youkeep quiet in the library because everyone is reading here.A．mayB． shouldC．mustn’tD．needn’t-八年级英语
• The total number of the students in our class_____52.[ ]A. am B. is C. are D. be-七年级英语
• You _____ in your composition today. You can hand it in tomorrow morning.A．need to handB．needn’t to