You’re too tired. You _______ have a good rest.A．shouldB．canC．mayD．shouldn’t-八年级英语

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• 上右图是一个森林生态系统中的各种生物，请观察：（1）图中的生产者是______，消费者有______．（2）生产者和消费者之间的关系，主要是______与______的关系，这样它们之间就形成了-生物
• 动物不能自己制造有机物，它们直接或间接的以______为食，因而叫做______．-生物
• 一 ______ Mimi cute? 一 Yes, I think so. [ ]A. Doesn't B. Don't C. Aren't D. Isn't
• Thedish_____nice. [ ]A.sounds B.smells C.feels -八年级英语
• -- Who’s singing in the next room?--- It ____ be her . She went to New York yesterday eveningA．can’t
• 池塘生态系统中有鱼类、浮游动物、绿色水生植物、真菌等生物，则该生态系统中的物质和能量的流动是从哪类生物开始的（）A．绿色水生植物B．浮游动物C．鱼类D．真菌-生物
• 最简单的生态系统，必须具有的生物成分是（）A．动物和植物B．非生物的物质和能量及生产者C．生产者和分解者D．生产者、分解者、消费者-生物
• 如图是草原生态系统中的主要成员及食物关系，请据图回答下列问题：（1）图中所示的是生态系统的______部分．在生态系统中，植物是______，动物是______，细菌和真菌是______．（2）-生物
• —Mr. Wang __________ be in the office. The light is still on.—No, he __________ be. Because he phone
• -__________ I do my homework now?-No, you __________.[ ]A. Can; needn'tB. May; needn'tC. C
• The cake _____ good. I can't wait to eat it. [ ]A. feels B. sounds C. becomes D. smells -九年级英语
• --Who is making much noise?---It ____ be Timmy. He is sleeping now.A．can’t B．may notC．mustn’t D．coul
• We hope that as many people as possible ______ join us for the charity show tomorrow.A．needB．canC．mu
• 在一个成分复杂的生态系统中，对保持生态平衡起决定作用的是（）A．非生物的物质和能量B．生产者C．消费者D．分解者-生物
• Don't go out to play. You_______finish your homework first.[ ]A. mustB.haveC.hadD.have to-八年级英语
• —Can you tell me what to wear at the party?—If I you, I the blue jeans.A．am; will wearB．was, will we
• –Look at that girl! Is it Susan? --No, it _______ be her. She went to her hometown just now.A．mustn’
• 分解者是生态系统中的重要组成成分，下列哪种生物不属于分解者（）A．灵芝B．枯草杆菌C．青蛙D．蘑菇-生物
• Put a bit of sugar in the coffee, and it will ______ better. [ ]A. sound B. taste C. look D. make -九
• I'msorrytohavekeptyouwaitinglong.Nevermind,I_______hereforonlyafewminutes.[ ]A. havebeen B. hav
• – There’s somebody at the door. Who ____ it be? Is it the postman? -- No. It ______ be him. It’s jus
• Li Lei _____ Hubei. He is my good friend.[ ]A. come from B. is come from C. is from D. from -七年级英语
• 某一生态系统中有绿色植物、细菌、真菌、鼠、蛇、鹰，其中属于消费者的是（）A．细菌、真菌B．绿色植物C．鹰、细菌D．鼠、蛇、鹰-生物
• —This T-shirt _____ Jim’s. I saw him playing basketball here just now.—No, it _____Jim’s. Look, at t
• He____know the answer, but I’m not sure.A:maybe B:may be C:may D:must-八年级英语
• （1）草A、消费者：（2）昆虫B、分解者：（3）细菌、真菌C、生产者：（4）田里的水稻和杂草D、生长（5）老虎吃野猪E、竞争关系（6）植物开花结果F、捕食关系（7）小虎长成大老虎G、繁殖．-生物
• 如图是草原生态系统的食物网示意图，据图回答：（1）从生态系统的成分来看，兔属于______（填“生产者”、“消费者”或“分解者”）．（2）“草→鼠→鹰”这条食物链中包括了3个环节；补充食物-生物
• 实验室的水族箱里生活着水生植物、动物、还有其他微生物，这样的水族箱可以看作是（）A．食物链B．食物网C．生态系统D．生物圈-生物
• — Whose radio is this?— I think _______. [ ]A. it's Andy B. it's Andy's C. its Andy D
• — What color _____Li Ming's clothes?— _____ white and black. [ ]A. does; It's B. do; We�
• I’d an English teacher an officer.A．rather be, thanB．to be, to beC．rather to be, thanD．rather be, th
• What ___________ the life like in the north , do you know?[ ]A. doesB. willC. wouldD. is-八年级英语
• 生态系统的能量最终来自于（）A．太阳能B．生产者C．消费者D．分解者-生物
• —People find it hard to get across the river．—I think at least two bridgesover it．A．needB．are needin
• There is a “ No smoking “ sign here. You _________ smoke.A．canB．mayC．needn’tD．mustn’t-九年级英语
• 由于市场销路不景气，菜农们种植的东瓜卖不出去．大量冬瓜都烂在田地里，这时，地里的微生物将（）A．数量下降B．数量上升C．不能生存D．稍有增加-生物
• —Do you like listening to Moonlight Sonata (月光曲)? —Yes. It ______ really beautiful. [ ]A. feels B. l
• —What did you say? —I said I _______ mad at you. [ ]A．was B．am C．will be D．were -八年级英语
• --Excuse me. How can I get to the museum?--Follow your nose. It’s only about 250 meters on the left.
• MrBrownandhisfamilyhave_______Sanyaforafew weeks.[ ]A.beeninB.workedC.gonetoD.leftfor -九年级英语
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• “落红不是无情物，化作春泥更护花”的诗句反映了（）A．生态系统中能量流动的单向性和不可逆性B．生态系统中的物质循环C．生物与环境相互依存、相互制约的关系D．生态系统中生物与食-生物
• （1）在此生态系统中，生产者是______（2）如向池塘中投放一些大黑鱼（肉食性），则池塘中小鱼的数量将会______（填增加或减少）．试写出一条图中的食物链______（3）一段时间后，该池塘-生物
• Today is Wednesday. He _______ be at home. He _____ be at school.A．can’t, canB．can’t, mustC．mustn’t,
• 属于消费者和生产者关系的是（）A．青蛙捕食昆虫B．黄鼠狼吃鸡C．长颈鹿吃树叶D．松鼠吃蘑菇-生物
• Lucy’s colour ____ blue because she likes to be the leader, so it ____ red.A．can’t be; must be B．can
• 按要求改写句子。1. The Green Family are staying in Qingdao for five years.(就划线部分提问) _________ _________ ____
• —"Katrina is a famous singer." —"I think so, And her voice _________ very sweet (甜美的)
• —Let's play soccer after school. —That ______ great! [ ]A. sounds B. looks C. hears D. listens
• 小薇买来的香蕉放了几天后，开始慢慢长出“黑斑”，出现了腐烂的现象，这与生态系统中的什么成分有关（）A．生产者B．分解者C．消费者D．都不是-生物