Many beautiful buildings ______ in our city last year. [ ]A. are built B. were built C. is built D.

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• How kind you are! You always do what you can_________me.A．helpB．helpingC．to helpD．helps-九年级英语
• Every year lots of trees _______ to make our country more beautiful.[ ]A．is planted B．was planted C．
• —scientific attitude is needed in developing our city.— I agree with you. In this way, we can makemi
• 城市生态系统中的生产者是（）A．工厂里的工人B．城市中的草坪C．城市中的楼房D．市民的宠物-生物
• 下列对生态农业的叙述，不正确的是[]A．有助于保护生态系统B．使能量得到循环利用C．使资源得到持续利用D．能提高生态农业系统中的生产率-八年级生物
• —How long have Mr and Mrs White ________? —For more than twenty years. [ ]A. married B. had married
• 改错题。1. How is Jane yesterday? _____________________ 2. He go to school by bus last week. ___________
• your father at work the day yesterday (前天)?[ ]A. Was; before B. Is; beforeC. Was; after D. Is; afte
• 从物质循环的观点来看，动物体中碳元素的最终来源是（）A．糖类中含有的碳B．大气中的二氧化碳C．蛋白质中含有的碳D．岩石中的碳-生物
• Harriet is lost and her parents are really________her.A.interested in B. afraid of C. busy with d. w
• —Could you tell me _______? —He is in the library. [ ]A. where Simon was B. where is Simon C. where
• 如图所示为以草原生态系统中狼、草和兔的数量关系，请据图回答问题．（1）A代表的生物是______，B代表的生物是______，C代表的生物是______．（2）一般情况下，三种生物的数量总维-生物
• 如图所示为某农田中的生物与其生活的环境，请回答下列问题．（1）春季，农民通过播种育秧种植水稻，水稻的生殖类型属于______生殖．（2）该农田的动物中，生殖过程属于体内受精的是-生物
• The twins in Dalian last year. They here now. [ ]A. are; wereB. were; are C. was; are D. were; was -
• 生物因素是指（）A．所有的环境因素B．环境中影响生物生活的因素C．影响某种生物生活的其他生物D．影响某种生物生活的一切因素-生物
• 句型转换，按括号内的要求转换下列句型，每空一词。 1. Sometimes you're supposed to come early. (改为否定句)Sometimes you suppo
• 动物必须直接或间接地以绿色植物为食，是生物圈中的（）A．生产者B．消费者C．食物链D．食物网-生物
• 图是某草原生态系统中部分生物之间关系的示意图，据图回答下列问题：（l）该草原生态系统中，除了图示的生物成分外，还应具有的生物成分是______．（填“生产者”或“消费者”或“分解-生物
• The Spring Festivalin January or February.A．celebrates B．is celebratedC．celebrated D．was celebrated-
• The work is too hard for him. He__________ finish it on time.A．can'tB．mustn'tC．shouldn
• ______里有微生物生活需要的各种营养物质，是微生物的主要活动场所．______微生物能将复杂的动物尸体、粪便和枯枝败叶等含的有机物加以分解，把产生的简单无机物归还到非生物-生物
• My father ill yesterday. [ ]A. isn't B. aren'tC. wasn't D. weren't-七年级英语
• 当今许多城市建筑出现“屋顶绿化”，它一般分为屋顶花园和植被屋顶两大类．屋顶花园的植物种类丰富，能够形成一定层次的植物群落，观赏性和稳定性高，但对屋顶的承载能力和土壤-生物
• 一Shall we meet at the station at 8 am?—In fact, we _______. The train _______ until l0 a.m.A．mustn’t
• 生态系统的组成包括______和______，其中生物部分包括______、______和______；非生物部分如：______、______、______等．-生物
• 一片森林中的阳光、空气和土壤等无机环境构成生态系统______．-生物
• 从蛇吃蛙，蛙吃虫，虫吃草可以看出蛇生命活动所利用的能量最终来源于（）A．蛙B．虫C．草D．阳光-生物
• Youeat the soup if you don't like it.A．shouldn't B．mustn't C．needn't D．can'
• 如图是某校生物兴趣小组对农田生态系统做过调查后，绘制的食物网简图．请据图回答有关问题：（1）在生态系统的组成成分中，植物属于______．（2）在农田生态系统中，鼠与昆虫之间是-生物
• 下列生物属于生态系统分解者的是（）A．蝗虫B．蘑菇C．蚊子D．葫芦藓-生物
• —When ______ you born, David? —I ______ born in 1995. [ ]A. was; were B. were; was C. were; were D.
• We'd better waitmore minutes. I think Jeff will come soon,A．a few B．few C．a little D．little-九年级
• If you have finished most of the work, you ______ start working so early tomorrow.A．can’tB．mustn’tC．
• 用括号内所给动词的适当形式填空。 1. — Listen, who ________ (read) in the classroom?— Maybe Kate ________ (be). 2. Am
• 下列某生态系统的组成成分中，属于消费者的是（）A．阳光B．野兔C．牧草D．细菌-生物
• 在菜园里，蚯蚓昼伏夜出，以凋落的黄叶、腐败有机物为食，排出的粪便中含有丰富的氮、磷、钾等无机盐．蚯蚓在土壤中活动，可以以疏松土壤，改善土壤结构．（1）蚯蚓在此生态体统-生物
• 下列关于生态系统的叙述，错误的是（）A．生态系统无论大小，都是由生物部分和非生物部分组成的B．一个生态系统中，往往有很多条食物链，它们彼此交错连接，形成食物网C．动物和植-生物
• —Congratulations! Among the best pictures in the competition，I found _______. Why did you draw it?一D
• — Have you decided where to spend your summer holiday? — Not yet. We _____ go to Qingdao. [ ]A. must
• There a teacher and three boys over there. [ ]A. be B. is C. am D. are -七年级英语
• 1935年澳大利亚为控制甘蔗害虫而引入的有毒蔗蟾如今已成为新的生物灾难．面对泛滥蔗蟾，科学家打算利用与蔗蟾活动时间不同的食肉蚁来控制蔗蟾数量．下列有关叙述不正确的是（）A-生物
• Every year many babies ______ born. [ ]A. is B. are C. was D. were -八年级英语
• Tom, along with three other boys, seen playing football a moment ago.A．isB．wasC．areD．were-九年级英语
• 下面是温带草原生态系统示意图，请认真观察下图后分析并回答下列问题：（1）该生态系统中，各种生物进行生命活动所需能量的根本来源是______．（2）从组成生态系统的成分看，图中未-生物
• Physics ______ much harder than English, I think. [ ]A. are B. is C. wasD. were -七年级英语
• 梨树、阳光、蜜蜂分别属于生态系统中的哪种成分？它们在生态系统中的作用分别是什么？请你通过连线来表示．生产者梨树通过光合作用制造有机物消费者阳光促进物质循环和帮助植物-生物
• —May I smoke here，please?—I am afraid you ．This is a non-smoking area．A．canB．can’tC．mayD．may not-九年级
• 一Excuse me, is this the right way to No. 1 Middle School? 一Sorry, I'm not sure. But it_______ b
• -- Can I tell Peter about the news?-- No, I don’t want anyone else to know it. You ________ keep it
• —Must I five the dictionary back to the library now?— No, You _____. You can _____ it for another tw