[填空题]结合所学的种子萌发的有关知识,回答问题:菜豆种子萌发过程的正确顺序是:②_____________________.①胚根发育成根②种子吸收水分,体积膨大③子叶里的营养物质转变成溶于水的物质④子叶和胚芽伸出土面⑤两片子叶分开,胚芽逐渐发育成茎和叶⑥胚轴伸长⑦溶于水的物质运给胚根、胚芽、胚轴
[判断题]我国气温的分布规律是南北气温相差很大.( )
[填空题]如图,A(0,1),M(3,2),N(4,4).动点P从点A出发,沿y轴以每秒1个单位长的速度向上移动,且过点P的直线l:y＝－x+b也随之移动,设移动时间为t秒. 若点M,N位于直线l的异侧,则t的取值范围是 .NM
[单选题]信用卡刷卡时,其表面的小磁体经过刷卡机的缝隙,线圈中会产生电流,此过程主要涉及的知识是信用线卡机A.电磁感应B.磁极间的相互作用C.通电导线周围存在磁场D.通电导线在磁场中受力运动
[判断题]黄豆芽和绿豆芽的食用部分主要由胚芽发育而来.______.
[填空题]有一刻度均匀但所标读数与实际温度不相符的温度计,用它测冰水混合物的温度时读数为4℃；用它测标准大气压下沸水的温度时读数为96℃；再用它测某液体的温度时,它的读数为27℃,则此液体的实际温度应为?℃.当液体的实际温度为?℃时,用此温度计测出的读数恰好与液体的实际温度相等.
[填空题]ProblemsBMy problem is my parents. My best friend has suddenly turned i have a reallyThey never stop going on her back on me and i dont know bad habit ofabout how I should keep why! Last week we phoned each chewing(ng)theds of my hae wenti try to stop, butclothes. They even make shopping together and she was fineaIlMonday morning mom is startingdinner every night! None she didnt look at me or speak to me. to get reallyof my friends have got i dont know what Ive done. She angry aboutsuch terrible parents. What now spends all her time with another Have you gotshouldi do group of friendsGinaadviceOHnts Weyour hair pulled back in Donte washing-up a ponytail(马尾辫) will help so much! Phone yourYou should help around keep it out of your mouth. When friend up as usual andfeel like chesomething. sheable todont think you should| try bubble gum(泡泡糖). Give refuse you. I am surelooks your self time and you should be you will get alongthough. Young people able to break this habit. The first weth each otheshould look like young few days are usually the hardest. Everything will beGood luck1. 根据所读内容将Helen, Jane, Gina 三个名字分别填入相应的横线上 ①___________②_____________③_____________2. The three girls wrote to ask for ________________________. 3. The underlined words “turned her back on me” means “________________________” in Chinese4. It is clear that Helen is not ________________________ with her parents.5. According to the advice, Jane should ________________________ her friend as usual.
[填空题]我国地域辽阔,同一天南北不同地方温度差别很大.如图(A)、(B)是十二月某一天同一时刻在三亚和北京观测到的温度计的示意图.由图可知,三亚此时温度为℃；北京此时温度为℃.℃2124710tD20A
[阅读理解]阅读理解.AmericanclothesRoommaringRoomJapaneseRussianR00mGermanIndia西 chineseFrenchRooRoomRoomRoom Open: Mon. -Thur. 9:30 a. m. -5:00 p. m. Sat. & Sun. 10:00 a. m. -9:00 p. m. Welcome to Wonderful Museum. This month we are having a special show about fashions from different countries. You can find how people dressed many years ago. What did the Americans wearone hundred years ago Did the Indians wear formal costumes for parties And when did the Russians make the comfortable shoes in their factories How long did the Japanese kimono exist (存在) You will find the answers. After this trip of the fashion history, you can watch how to make clothes in old machines in theClothes-making Room on the corner of this floor. 1. On which day is the museum closed A. Monday. B. Friday. C. Wednesday. D. Tuesday. 2. You cant get any information about ____ in the museum. A. South Korean clothesB. Japanese clothes C. Indian clothes D. German clothes 3. The underlined sentences are mainly about ____. A. the warm welcome B. some questionsC. farming tools D. some information you can get in the museum 4. Most probably (可能地), you will visit the ____ last. A. American Room B. Russian Room C. German Room D. Clothes-making Room 5. Which of the following is true A. We can visit the museum at 9:00 a. m. on Wednesday. B. The museum isnt closed at 9:30 p. m. C. We can visit the museum at 10:30 a. m. on Saturday. D. The museum is open at 9:30 a. m. on Sunday.
[填空题]在右图所示的刻度尺的分度值是 ,木块的长度为 .3
[填空题]地面卫星控制中心向“嫦娥二号”发送指令时,是利用传递指令信号的(选填“电磁波”或“声波”)；家用电视遥控器是靠实现对电视机的控制的(选填“紫外线”、“红外线”或“可见光”).
[填空题]已知点A(-3,a),B(1,b)都在一次函数y=kx+2的图象上,则a与b的数量关系为
[填空题]如图,是探究“什么情况下磁可以生电”的实验装置.①如果让导线不动,用以下方法改变磁体:A.改变磁体的磁极；B.换用不同强度的磁体；C.让磁体上下移动；D.让磁体左右移动；E.让磁体前后移动.你在学习过程中做这些探究时,观察到电流表指针会摆动的是________________(选题字母序号).②如果让磁体不动,用以下方法移动导线ab:A.让ab上下平行移动,B.让ab水平前后移动,C.让ab水平左右移动,D.让ab在竖直面内转动；你在学习的过程中做这些探究时,观察到电流表指针会摆动的是________________(选题字母序号).③实现象中,使电流表指针发生摆动的共同点是:___________________________________.电流表指针发生了摆动,说明电路中产生了__________________.NS
[填空题]木棍在水面振动会产生__________；说话时声带的振动在空气中形成__________.与此相似,导线中电流的迅速变化会在空间激起__________.它虽然看不见、摸不到,但是它确实可以给我们传递各种信息.
[填空题]现在各地电视台正在大力推广普及的“数字电视”其实就是电视台用________ 信号传输电视节目,小刚爸爸的移动电话的接收频率是15MHz ,这种电磁波的波长是_______m .
[问答题]妈妈骑车送小明上学,妈妈叫小明“坐好别动”,是以 为参照物,若以小明为参照物,路旁的树是 (填“运动”或“静止”)的.
[填空题]从卖面包的店铺门前走过,可以闻到烤面包的香味,这是______现象.
[填空题]完形填空. I can still (仍然) remember my first day at school. I 1 only 6 at that time. It was a big room. I 2 at the desk near the window, but I couldnt see 3 because the windows were too high. There was big map of the world on the wall. I dont think I was worried or afraid at that time. 4 anotherlittle boy next to me. He sat there and 5 silent (沉默) first. Then he began to cry, because he 6 to stay there. 7 students came in, but the boy didnt stop 8 . He cried again and again. Later, the teacher came in. She 9 to the little boy, and said something to him. I couldnt hear what she 10 . Soon the boystopped crying and began to smile. To this day, I still dont know what the teacher said to the little boy.( )1. A. am( )2. A. sit ( )3. A. anything( )4. A. There was ( )5. A. keeps ( )6. A. doesnt ( )7. A. No( )8. A. cry ( )9. A. comes ( )10. A. sayB. is B. sits B. somethingB. There were B. kept B. wasnt B. More and moreB. to cry B. goes B. said C. wasC. sittingC. nothingC. There is C. to keepC. isntC. A fewC. crying C. came C. cryD. wereD. sat D. everythingD. There had D. keeping D. didntD. other D. cried D. wentD. cried
[单选题]我县的主要粮食作物是( )A.水稻B.小麦C.玉米D.高梁
[阅读理解]根据短文内容,回答问题. My name is Chen Lan. My home is in Gulangyu. Where is Gulangyu, do you know It is in Xiamen. It is near the sea (海). Gulangyu is a small place, but it is very nice and clean. There are no cars, no busesand no bikes. People only walk. So it is very quiet.Our house is in the middle of Gulangyu. Behind our housethere is a big old tree. My grandfather tells me the tree is very old. There are many birds in the tree. We callit bird tree. Our house is near the sea. The sea is big and blue. There are a lot of fish in the sea. After school, I gothere and catch fish with my friends. It is very interesting. I like eating and catching fish. 1. Why do people only walk in Gulangyu __________________________________________________ 2. Where is the bird tree __________________________________________________3. What color is the sea __________________________________________________4. Are there any fish in the sea __________________________________________________ 5. Whats in the old tree __________________________________________________
[填空题]某同学连接的电路如图所示,开关S闭合后,灯L1亮；灯L2不亮,电压表和电流表都有示数,由此可以做出判断,灯L2处可能是 _________ ,也可能是 _________ ,但不可能是 _________ .(以上三空中选填“完好”、“断路”或“短路”).⑧