--______you swim? -- No, I can’t. A．CanB．MayC．MustD．Need-九年级英语

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• – Do you know whose book this is?—Let me have a look . It Wei Fang’s . Look, here is her name.A．can
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• ____ theygood ____ theirfriends ?[ ]A. Do ,with B. Are ,at C. Are , withD. Do ,at-七年级英语
• -- _____ I ask you a question, Mr. Wang?-- Yes, you _______.A．Can, can’tB．Can, mayC．May, canD．May, m
• Good morning, Mr Smith! My name ____Jack. [ ]A. Is B. is C. are-七年级英语
• 湖泊生态系统中的草食鱼以水草为食，属于消费者；肉食鱼以草食鱼为食，应属于（）A．生产者B．消费者C．分解者D．消费者和分解者-生物
• 在生态系统中，能将有机物分解成简单的物质，供植物利用的是（）A．植物B．动物C．细菌D．阳光-生物
• 动物在生态系统中主要充当（）A．分解者B．消费之和分解C．消费者D．生产者-生物
• 下列做法中不正确的是（）A．农民在生态系统中扮演的角色是生产者B．食物链和食物网是生态系统的重要组成部分C．生态系统的功能是物质循环和能量流动D．生物圈是地球上最大的生态系-生物
• 在一块农田里，稻卷叶虫，蝗虫是危害水稻的害虫，青蛙是捕捉害虫的能手．那么，在这个生态系统中，这块稻田的水稻是______，其作用是______，蝗虫和青蛙是______，在这块稻田-生物
• 生态系统由______和______组成，其中植物在生态系统中扮演的角色是______，动物在生态系统中扮演的角色______，分解者是______．-生物
• 下列各项中，属于分解者的是（）A．水族箱中的金鱼藻B．金鱼的饵料水蚤C．潮湿阴暗处生长的苔藓D．朽木上生长的蘑菇-生物
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• — My clothes are out of style.-—Maybe you should ______ some new clothes.A．buyB．boughtC．buyingD．boug
• there a bank near here?[ ]A.AreB. Is C. Am D. Be-七年级英语
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• Mr. and Mrs. Smith _____ busy _____ their housework. [ ]A. is, with B. are, with C. is, do D. are, d
• With the help of the new technology, you __ e-mail your friends by mobile phone.A．canB．mustC．needD．s
• 用am, is, are填空。1. I _______ Peter Hunt.2. My name _______Bill.3. I _______twelve.4. My family name__
• —I want to know if I _______________smoke here. —No, you ______________. Could you see the sign “ No
• 由于______流、______流和______流的存在，生物与环境才成为统一的整体．-生物
• -----Look! The girl dancing in the gym ____ be Joe. She is the girl who loves dancing too much, you
• It is usually warm in my hometown in March, but it ____be rather cold sometimes.A．mustB．canC．shouldD
• — Could I borrow your dictionary?— Of course you ______. A．mustB．canC．shouldD．need-九年级英语
• This book _____ Lucy’s. Look! Her name is on the book.A．must beB．may beC．can’t beD．mustn’t be-八年级英语
• — Must I finish the exercise at school? — No, you don’t have to. You do it at home.A．mustB．needC．wil
• Those eggs _______, please throw them away. [ ]A. smell badlyB. are smelled badC. are smelled wellD.
• —How much _______ this pair of trousers?—Ten dollars _______ enough.[ ]A. are; is B. is; are C. are;
• An eraser and a bookon the table.[ ]A amB isCare-七年级英语
• 用be的适当形式填空。1. —What _______it in English? —It _______a book.2. —Who _______that man? —He’s Tom’s fat
• ____ I fill in the application form right now, sir? No, you needn’t. You can complete it this aftern
• be动词的适当形式填空1. —What color _______ your pencils?—They _______ blue.2. —How ______ Frank? —He ______ f
• 看图回答：下列说法错误的是（）A．草是生产者，兔、鼠、狐、蛇、鹰是消费者B．最长的食物链是：草→鼠→蛇→鹰C．在生态系统中，各种生物的数量和比例总是维持在绝对平衡的状态，这种-生物
• 用直线将相关内容链接起来．生产者细菌、真菌消费者植物分解者动物．-生物
• 一条食物链中，兔子不吃狼，但狼吃兔子，该食物链的不可逆性说明一个生态系统中（）A．氧循环是单向的B．水循环是单向的C．碳循环是单向的D．能量流动是单向的-生物
• A: Listen! Is it Linda singing in the next room? B: No, it __________ be her. She is still in Shangh
• These are some students and that _________ their teacher.[ ]A. is B. am C. are D. be -七年级英语
• 请用所给词的正确形式填空.。1．How_________ （be）Helen?2．_________ （She）name is Jane．She is my friend．3．Hello，______
• 某动物能促进生态系统的物质循环，这是指它（）A．能合成有机物B．能分解有机物产生CO2、尿液，以便被生产者利用C．产生的粪便及其死后的遗体能被分解者分解，释放CO2等物质D．B、-生物
• How much_____ these carrots?[ ]A. areB. isC. doD. does-七年级英语
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• 用所给动词的适当形式填空1. Special 2 _______ (be) only 2 RMB for 10, and _____ (have) cabbage and mutton.2. Than
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• 下列各组生物中，属于生产者的是（）A．蘑菇和青菜B．河蚌和海带C．水草和小麦D．病毒和玉米-生物
• 蓝藻、硫细菌、硝化细菌等，能够利用光能或化学能将无机物转变为储能的有机物满足自身对营养物质的需要．如这些自养型微生物属于（）A．生产者B．消费者C．分解者D．生产者和消费者-生物
• 能够把生物体内的有机物分解成二氧化碳并释放到无机环境中的生物是（）A．生产者B．消费者C．分解者D．以上都是-生物
• 从物质循环的观点看，人体内碳元素的最终来源是（）A．食物所含有机物中的碳B．非生物界中的碳酸盐C．大气中的二氧化碳D．生态系统中生产者-生物
• 在生态系统中，与碳循环始终结合在一起进行的是（）A．氮循环B．水循环C．能量流动D．能量循环-生物
• —______ you please tell me something about the life in Canada? — Sorry, I______ . I don’t know eith
• 根据句意，用括号内所给单词的适当形式填空。1. That _______ (sound) interesting.2. Here are my _______ (photo).3. What'