—What ______ people in Korea supposed to do when they first meet?—They usually bow.[ ]A. are B. do C

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• I want to _______ a _______ basketball player, but my mother don't agree with me.[ ]A. be, prof
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• 下列不属于生态系统的是（）A．北海湿地B．养牛场的一群奶牛C．郊外的农田D．宋风山国家森林公园-生物
• —Where is Sally?—I’m not sure. Shein the library.A．mightB．mustC．will beD．may be-八年级英语
• 下列生物中，属于“分解者”的是（）A．蘑菇B．白菜C．青蛙D．蛔虫-生物
• I am going to play basketball this Saturday_____ I like basketball.A．soB．becauseC．alsoD．but-七年级英语
• Alan is looking forward to _____ on Saturday. A．outB．goes outC．go outD．going out-七年级英语
• Look! Those boys are ____ a bus.A．waiting forB．waitC．wait forD．waiting-七年级英语
• You'dbetter__________nexttime. [ ]A. careful B. becareful C. arecareofD. carefully -七年级英语
• Abookandapen______onthedesk.[ ]A. isB.areC.does-七年级英语
• 地球上某个特定的地域，一个相对封闭的生态系统内，为维持其中的动物长时间生活并正常繁衍后代，最重要的生态因素是（）A．空气B．水分C．食物D．能量-生物
• 植物通过______制造有机物，有机物种储存着来自______的______．植物制造的有机物不仅养活着自己，还为动物提供了______，因此，植物是生态系统的______．动物不能制造有机物，-生物
• －__________ can you finish your homework, Ben?－ In thirty minutes. A．How farB．How soonC．How longD．Ho
• 影响生态系统的因素往往分两类，一类是______，另一类是______，这两类因素往往______作用，______因素可以导致______因素的强化或弱化．-生物
• --Just a minute. I’ll go to get some apples for you.--Thanks, but you ______ get too many. One is en
• ---What are you going to do _____ Sunday morning?--- Nothing much.A．/B．onC．inD．at-七年级英语
• 生态系统是指：______．填写其组成：-生物
• 能量在食物链的流动过程中被多种生物逐步______，生态系统中的植物必须不断的从外界__________________，才能保证______的正常生活．因此______是生态系统的基础．与能量相比_
• 我们通过调查一个生态系统的活动，了解到生态系统由两种成分组成：分别是：______成分，例如阳光、空气等；______成分，例如能够进行光合作用制造有机物的绿色植物叫做______，-生物
• The girl _____ of medium build and_____ blonde hair.[ ]A. is ; is B. has ; hasC. has ; isD. is ; has
• Don't late for school.[ ]A. is B. be C. am D. was-七年级英语
• 校园内郁郁葱葱的樟树，在生态系统中属于（）A．生产者B．消费者C．分解者D．非生物部分-生物
• Chris Lee won the _________ for the best singers in 2009 Asia Song Festival. A．gradeB．resultC．prizeD
• Tom would rather _________than _________. A．stay at home , go outB．to stay at home , to go outC．to s
• The book_____ be jim’s because his name is on it.A. cant B. must C. can’t-七年级英语
• We usually ________CCTV news at 7:00 in the evening.A．watchB．watchesC．is watchingD．are watching-七年级英
• 以下关于能量在食物链中流动的叙述，正确的是（）A．从绿色植物流向植物性动物B．从太阳流向绿色植物C．从肉食性动物流向植食性动物D．从肉食性动物流向绿色植物-生物
• 阳光上的玻璃缸里有水草，养着各种观赏鱼，这个密封的玻璃缸就是一个（）A．生物圈B．生态系统C．非生物D．各种生物的群体-生物
• 如图为生产者、消费者、分解者之间的关系示意图，分析后请回答：（1）图中甲、乙、丙分别代表______、______和______．（2）在乙、丙、丁三类生物中，数量最多的是______，所含能量-生物
• 句型转换。①Tommy'sEnglishbookisonthetable.（改为否定句）Tommy'sEnglishbook_____ _____onthetable.②Mybas
• 用be的适当形式填空。1.These _____ myapples.2. Where_____yourchair?3. They_____inmybag.4. _____ theyunderthech
• —Let's play football after school. —That ______ good. [ ]A. smells B. sounds C. listens D. feel
• I'mgoingtoXi'anforaweek.That_____nice. [ ]A.listensB.soundsC.hearsD.looks -七年级英语
• — _______ your brother short?—No , he ______of medium height.[ ]A. Is;isB. Is;hasC. Has;hasD. Has;is
• 生态系统中绿色植物固定的太阳能沿着食物链的单向传递叫[]A．能量输入B．能量输出C．能量流动D．能量交换-八年级生物
• I’m not feeling ______, I _____ see a doctor.A good; will have to B. good; mustC. well; will have D.
• My mother and I _______going to watch TV this evening.A．areB．isn’tC．isD．am-七年级英语
• 如图为一个水域生态系统的示意图，请据图回答问题：（1）藻类是生态系统中的______，因为它们能够通过______制造有机物；大鱼和小鱼是生态系统中的______．（2）这条食物链中，生物-生物
• 分解者在生态系统中占有重要的地位，这主要是因为他们（）A．是实物的来源B．能释放氧气C．能净化空气D．能将动植物遗体分解为无机物-生物
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• Some oranges____in the bag. Some beef_____ on the table.[ ]A. is;isB. are; areC. are;isD. is; are-七年
• Where_____ the lions _____? [ ]A. does; fromB. does; come fromC. is; fromD. are; from-七年级英语
• 单项选择。The teacher asked," _____ everyone here?" [ ]A. Am B. Are C. Is D. Do -七年级英语
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• This book _______ Lucy’s . Look! Her name is on the book cover（封面）.A．must beB．may beC．can’t beD．must
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• My brother likes playing ____ football, but he doesn’t like playing ___ piano.A．the; aB．the, theC．/;
• 下图示我国南方的一种新型的“桑→蚕→气→鱼”农业模式，该模式将蚕沙（蚕粪）、人畜粪便、枯枝败叶等投入沼气池发酵制成沼气，用沼渣喂鱼及为桑树施肥，获得了鱼、蚕、桑、气的全-八年级生物
• 用be的适当形式填空。①— _____thoseyourpencils? — Yes, they____.② I_____WangYun. MyQQnumber_____8055725.③These_