---I think Miss Lin must be in the library. She said she would go there.---No, she __________be ther

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• —______ I take the magazine away from the reading room?— No, you mustn’t. You ______ read it only he
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• This summer holiday I did an English course which ________ for four weeks. [ ]A. lastsB. lasted C. w
• 下列属于生产者的是（）A．进行光合作用的植物B．动物C．微生物D．人-生物
• 如图是一个生态系统部分结构示意图，据图分析回答：（1）图中的太阳光、水、空气、无机盐都属于生态系统中的______成分．（2）细菌和真菌在生态系统中属于______．（3）请写出图中的捕-生物
• 生产者与消费者的区别在于（）A．生产者是以消费者为食的生物B．能否利用光能（或化学能）将无机物合成储存能量的有机物C．消费者是直接以生产者为食的生物D．消费者能利用现成的有机-生物
• 下列微生物在生物圈属于消费者的是（）A．枯草杆菌B．流感病毒C．蓝藻D．根瘤菌-生物
• — Must I feed the goldfish now? — No, you ______. But you must do it before supper.A．needn’tB．mustn’
• Sometimes we have much homework to do, but not often. Anyway, it ______in time.A．can finish B．should
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• 植物是生物圈中的______者，动物是生物圈中的______者，大部分腐生微生物是生物圈中的______者．-生物
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• 生物可以利用的能量最终来源于（）A．植物B．动物C．土壤D．太阳-生物
• 下列有关生产者、消费者、分解者之间关系的叙述不正确的是（）A．生产者可为消费者提供食物和栖息场所B．消费者有助于植物传粉受精、种子传播C．分解者将动植物遗体分解成无机物又-生物
• 用助动词和情态动词do, does, don't, doesn't, is, am, are, be, can, can't填空1. —Does he have a ba
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• Red good luck. [ ]A. thinksB. meansC. looks D. hears-七年级英语
• 观察图，据图回答下列问题：（1）生态系统中，图中A是______者，B是______者．（2）从图中我们观察到生态系统中的分解者是______，它们把动植物的遗体分解成______、水和无机盐．（3-
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• 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
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• With the help of the new technology, you __ e-mail your friends by mobile phone.A．canB．mustC．needD．s
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