—______you speak English?—Yes, I can.[ ]A. AreB. Can C. IsD. Need-七年级英语

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• I can't sleep, so I ______ listen to quiet music, and I ______ listen to exciting music.[ ]A. s
• I'll play baseball, because it can_____. [ ] A. to build me upB. to build up meC. build up meD.
• All the cars _____ stop when the traffic light is red.[ ]A. can B. need C. mayD. should-八年级英语
• —What does this sign mean, Miss Chen?—Oh, it says that we ________take photos here.A. needn’t B. ma
• 下列属于生产者的是（）A．蘑菇B．真菌C．紫菜D．工人-生物
• You mother looks a bit disappointed. You have told her the truth. [ ]A．shouldB．must C．can D．will-九年级
• 补全下列各组对话，每空一词。1.—_________ _________ help you?—I'm looking for a white shirt.2.—_________ _____
• 如图所示为一个草原生态系统中，狼、草类和兔子的数量关系图，据图回答下列问题：（1）A、B、C代表的生物依次是______．（2）冬天，草类减少，兔子、狼的数量依次______．（3）春天，-生物
• Can Peter _____ any Chinese songs?[ ]A. sing B. to singC. singsD. singing-七年级英语
• —Can you give me on how to learn math well?—Oh, I’m weak in math, I think you can ask Tom for help.—
• –________ you turn down your radio, please? –Yes, I can.A．MayB．NeedC．MustD．Can-九年级英语
• 农田中生活着水稻、蝗虫、青蛙、老鼠、麻雀，正常情况下在各种动物中数量最多的是（）A．麻雀B．老鼠C．蝗虫D．青蛙-生物
• 生物体的结构和功能是统一的，生态系统的结构与功能________。但与其它结构不同的是，生态系统是生物通过_______而连在一起的，生态系统的功能也与生物之间的食物关系有关。-八年级生物
• —I _____find my pencil-box.—It _____ at home.[ ]A. can't; may be B. may not;maybeC. can't;
• —Must I finish the exercise this afternoon? —Yes, you _____ , but you _____ finish it right now.[ ]A
• “落红本是无情物，化做春泥更护花”使落花化作春泥的生物是生态系统中的（）A．分解者B．消费者C．生产者D．非生物部分-生物
• I’m feeling much better now so you ______ call the doctor.A．couldn’tB．wouldn’tC．can’tD．needn’t-英语
• —_____she come this afternoon? —No, she can't. Because her mother is ill.[ ]A. Can B. WouldC. C
• 请根据图示生态系统回答问题：（1）图中太阳能、水、二氧化碳、氮气都属于生态系统中的______．（2）图中所示蝗虫取食______，蝗虫身体分为______三部分，有______对翅，______对足
• 看看你的应变能力，用所给单词的适当形式填空。1.I can’t find the museum. What_____ I _____(do)?2.I’m sorry I didn’t finish _
• You are too tired .You ______ rest and you ______ go to the movies.[ ]A. shouldn't; shouldB. sh
• -I can't get to sleep at night.-You ____drink coffee at night.[ ]A.shouls B.should'tC.need
• --____ you come to my birthday party tomorrow, Robert? --I’m afraid not. I have to study for my exa
• 在生态系统中，组成生物体的化学元素从无机环境开始，经______、______和______，又回到无机环境，就完成了一个循环过程，我们称之为生态系统的物质循环．-生物
• 在生态系统中，能把有机物变成二氧化碳和水等返回无机环境中的是（）A．生产者B．消费者C．分解者D．生产者、消费者和分解者-生物
• 动物和细菌、真菌一样能促进生态系统的物质循环，故动物是（）A．生产者B．消费者C．分解者D．既是消费者，又是分解者-生物
• Tom _____ be murderer (凶手) because I saw he killed (杀死) her.[ ]A. must B. canC. may D. will-八年级英语
• 根据下图这个生态系统中的生物，分析回答有关问题：（1）在这个生态系统中，消费者是指______，分解者是指______．（2）影响草生活的生态因素除了图中标出的外，还有______．（3）这个-生物
• —_____ I play computer, Mum?—No, you _____do your homework first.[ ]A.Can; may not B.May; needn'
• —Is Mr. Green in the office?—No, he ________ be in the office. Look, the light in the office is off.
• —_____ you bring some things for me? —Yes, I can.[ ]A. Do B. AreC. Can D. Have-七年级英语
• though today is bright, it_____ be rainy tomorrow.[ ]A. can B. isC. willD. must-八年级英语
• 非生物成分包括______、______、______和______等．它们为生物提供______、______和______．-生物
• 在生态系统中，下列生物属于分解者的是（）A．羊B．牛C．蘑菇D．草-生物
• — Must we keep the windows ______ all the time? — No, you ______.[ ]A. closed; mustn'tB. close;
• 生态系统中物质循环的特点是[]A．周而复始的B．逐级递减的C．单向的D．双向的-八年级生物
• 用括号里所单词的适当形式填空。1.I ___(will) like to buy a tree.2.Please put these ____(photo) on the wall.3.Let ___
• 生物的尸体经过微生物分解后，可为绿色植物提供二氧化碳、水和无机盐______．-生物
• —Must we finish our homework before dinner?—No, you _____.[ ]A. mustn'tB. mustC. needn'tD.
• You _____ right.[ ]A. may beB. maybeC. can be-八年级英语
• 请根据如图所示生态系统，完成下列问题．（1）图中太阳能、水、二氧化碳、氮气都属于生态系统中的______．（2）图中所示蝗虫取食______，有______对足，善于______．（3）如果该生态系-
• It is raining hard outside, so we _____ stay in the classroom. [ ]A. must B. can C. have to D. might
• 根据你所学的生物学知识判断下列说法正确的是（）A．“有收无收在于水，收多收少在于肥”，这句话表明了植物的生长需要水和有机物B．既能生活在水中又能生活在陆地上的动物都属于两-生物
• You_____ smoke when you see the sign.[ ]A. mustB. shouldC. mustn'tD. needn't-八年级英语
• You play computer games for a long time. It’s bad for your eyes.A．shouldB．shouldn’tC．couldD．don’t ha
• 在如右图所示的食物网中，要使E的产量最高，把能量集中引向E的食物链应是（）A．A→B→C→EB．A→B→EC．A→DD．A→B→C-生物
• —Do we have to finish our homework this afternoon? —Yes, you _______. [ ]A. must B. can C. may D. ne
• 句型转换。根据所给提示，完成句型转换。每空一词，含缩略词。 1. He can play the guitar. (改为一般疑问句,并作否定回答)________ he play the guitar
• —I can't get to sleep at night.—You ____drink coffee at night.[ ]A. shoulds B. shouldn'tC.
• 关于生产者、消费者、分解者的叙述，错误的是（）A．能将有机物分解为无机物的生物都叫分解者B．消费者的身体细胞表面一般都没有细胞壁C．在光下能放出氧的生物一般都是生产者D．生-生物