单项选择。Yesterday I ______ tired but happy. [ ]A. am B. was C. is D. are -七年级英语

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• 一个生态系统无论大小，都是由______和______组成的．-生物
• －Are people around you used to _______things online?－Yes. It’s much easier, and also cheaper.A．order
• Lucy _____ born _____ London _____ May 1, 1986 [ ]A. is; in; onB. was; in; on C. was; in; in D. is;
• Mom bought ____ oranges for me, but I’d like to drink some ________. A. many; oranges B. much; orang
• —Miss Li, must we hand in our homework right now?—No, you ____.You can hand it in tomorrow.A．don’tB．
• It rained heavily, so we _______ stay at home watching TV or surfing the Internet all day. A. could
• Not only I but also he helpful to others. [ ]A. am B. is C. are D. be -九年级英语
• 下列有关生态系统的叙述中，正确的是（）A．生态系统的组成成分包括生产者、消费者和分解者B．生态系统中各利生物的数量和所占的比例是不变的C．生态系统中的物质和能量是沿着食物-生物
• —How often do I need to feed the birds?—They ________ food every day，or they will be hungry.A．must g
• 如图是生态系统的能量流动示意图．（1）上图说明，输入改生态系统的能量，来自于图中______的______作用．（2）在生态系统中，能量是沿着______依次流动的．当能量在逐级传递时，由-生物
• 下列生物中，属于生产者的是（）A．牛B．蘑菇C．人D．向日葵-生物
• 选择填空。—How many bookcases ______ there in your study?— There ______ one. [ ]A. are, is B. is, are C.
• You _______have a wrong number. There’s no Mr Johnson here.A．need B．wouldC．mustD．can-八年级英语
• — everybody here yesterday? —No, Linda wasn't here. [ ]A. Do B. Does C. Is D. Was -八年级英语
• I ______ able to sing any song but this one. [ ]A. may B. can C. am D. would -九年级英语
• 单项选择。What ______ your favourite food? [ ]A．is B．are C．be D．am -七年级英语
• — How is your English study?Not bad. But I_______ learning English grammar.A．am interested in B．am g
• The number of the women teachers ______ 80 last term in our school. [ ]A. isB. are C. was D. were -九
• 鲁迅先生在《从百草园到三味书屋》中写到：“不必说碧绿的菜畦，光滑的石井栏，高大的皂荚树，紫红的桑椹；也不必说鸣蝉在树叶里长吟，肥胖的黄蜂伏在菜花上，轻捷的叫天子（云雀-生物
• Her sister ____ a taxi driver. Now she works for a charity.A．isB．were used to beingC．is used to bein
• 如图是某生态系统简图，请据图答题：（1）在这个生态系统中，阳光、空气、水等属于______因素．（2）图中陆地部分的食物网可画出几条食物链：______（3）如果食虫鸟的数量大量减少，对-生物
• 选择填空。—Hello! I ______ Jim. What's your name?— My name ______ Sally. [ ]A. am, is B. are, am C.
• I didn't know you ______ here. [ ]A. are B. will be C. have been D. were -九年级英语
• The magazine___________ be Lily's, for we can find her name on the cover.A．mayB．might C．couldD．
• They think wearing their own clothes _______ good for their studies. [ ]A．areB．do C．does D．is -九年级英语
• 生物圈中到处都有绿色植物．地球上包括我们人类的其他生物都离不开绿色植物．请就所学的知识回答：（1）绿色植物是生态系统中的______．（2）植物体的生长发育是从______开始的．（3）绿-生物
• They _____ England and they will be back next week.A．have gone toB．have been toC．have gone inD．has b
• 某草原生态系统中各成分之间的关系如图所示．请回答：（1）图中的植物是生态系统中的______者，动物是生态系统中的______者．（2）生态系统通过食物链和食物网进行着能量______和物-生物
• 根据下面的图示，判断说法正确的一组是（）A．图一所示图“大气”的成分是氧气，生态系统中的能量流动方向是动物到植物、微生物到动物、微生物到植物B．图二表示用显微镜观察洋葱鳞-生物
• 硝化细菌能利用化学能将无机物转变成有机物，满足自身对营养物质的需要，这类细菌在生态系统中属于（）A．生产者B．消费者C．分解者D．消费者和分解者-生物
• My father doesn’t have much money. I don’t have, ____. A．tooB．alsoC．stillD．either-八年级英语
• The bag of rice is ＿＿＿ heavy for Tom to carry. Let’s go and help him.A. too B. so C. very-九年级英语
• When I got to the cinema, the film _____ for five minutes.[ ]A: had started B: had been on C: has be
• 如图示某两地生态系统中的甲、乙两个食物网，请根据所学知识回答问题．（1）甲和乙两图所示部分都不能称为生态系统，原因是______；在各自的生态系统中甲和乙的生产者都是_____-生物
• Some of my classmates _________ after school every day.A．walks homeB．walk homeC．walk to homeD．goes h
• 在生态系统中，太阳光的光能要参与生物圈中的能量流动，首先需要通过（）A．生产者B．消费者C．分解者D．非生物成分-生物
• My sister ______ an English teacher in our school. Now she works in America.A．was used to beB．used t
• Is there _______________ to sleep for half a day?A．somewhere enough silentB．somewhere silent enoughC
• 生态系统的物质循环是指组成生物体的物质在（）A．生物与无机环境之间的往返循环B．不同食物链之间的往返循环C．生产者、消费者和分解者之间的往返循环D．食物网内各种生物之间的往-生物
• I can’t go to the cinema with you because I _______ stay here until my mother comes back.A．canB．coul
• —Be quiet, Mr Smith is coming.—Don’t worry. It ＿＿＿ be him. Mr Smith is much taller.A. mustn’t B. mus
• 选择填空。Miss Li ______ at home last Sunday. [ ]A．didn't B．doesn't C．wasn't -七年级英语
• 几位同学针对食物链“草→食草昆虫→食虫鸟”发表了他们各自的见解，你认为不正确的是（）A．草属于生产者B．食草昆虫和食虫鸟都是消费者C．保护食虫鸟对人类有益D．多条食物链就可构成-生物
• 单项选择。Here some pencils for every teacher now. [ ]A. wasB. wereC. isD. are -七年级英语
• 单项选择。Everyone going to learn English? [ ]A. is B. are C. do D. does -七年级英语
• 图中箭头表示能量、物质的转化或流向．其中正确的是（）A．B．C．D．-生物
• They ______ friends since they met for the first time.[ ]A: have madeB: made C: have been D: were -八
• May I have a rest? I have already finished ______ the report.A．writeB．writingC．to writeD．written-九年级
• 小郭自制了一个密闭的生态瓶，要使模拟的生态系统维持更长时间，该生态瓶最好放在（）A．床柜上B．阳台上C．冰箱里D．衣柜里-生物
• —Can you speak English, Mr Wang？—Yes, but only＿＿＿A. little B. a little C. a lot-九年级英语