2019年第二学期六年级科学试卷.doc

2019年第二学期六年级科学试卷一、填空（每格1分，共10分）1.物质的变化分为 变化和 变化，在变化中产生新物质的变化是 变化。2.细胞是生物最基本的 单位，也是生物最基本的 单位。3.现在垃圾的一般处理方法有焚烧和 ；我们能用过滤、 等方法把污水中的杂质分离出来；目前世界存在着环境问题主要有大气污染、 、物种灭绝速度加快等。4.大熊星座的明显标志就是由七颗亮星组成的 。我们可以借助这七颗星找到 。二、选择（每小题2分，共30分。每小题只有一个选项符合题意）（ ）5.右图中，如果一个钩码的重量是0.5牛顿，那么弹簧秤的读数将A.大于1牛顿 B.等于1牛顿 C.小于1牛顿（ ）6.对于相同的物体，滚动时的摩擦力与滑动时的摩擦力比较A滚动时的大 B.一样大 C.滑动时的大（ ）7. 下列图中，属于费力杠杆的是 A. B. C. ( )8. 下列关于能量的说法错误的是A.能量可以互相转化 B.任何物体工作都需要能量 C.米饭中没有能量( )9. 下列箭头所表示的相吸与相斥的关系正确的是A.B.C. ( )10. 有一个重物，在空中称，弹簧秤的读数是1.8牛，在水里称，弹簧秤的读数是0.7牛，那么，它在水里受到的浮力是A.1.8牛 B.0.7牛 C.1.1牛( )11.保护环境是每个公民的责任。以下做法：推广使用无磷洗涤剂；推广使用一次性木质筷子；推广使用塑料袋；推广使用清洁能源。其中有利于保护环境的是A B. C.( )12. 电灯可以把电能转化成A.光能 B.风能 C.光能与热能( )13.小明拆开一盒荔枝干，里面有一大块塑料泡沫、一块黄绸布，荔枝干只占了六分之一的体积、二分之一的质量，这样的包装是A.必要的包装 B.精美的包装 C.过度的包装( )14. 在观察水中微生物时，常在载玻片上放一些棉花纤维，目的是A固定微生物 B.使微生物运动减缓 C增加水的营养( )15.下列有关地球、太阳与宇宙的说法错误的是A.太阳系属于银河系的一部分 B.太阳是太阳系唯一发光的恒星C地球绕日公转形成四季更替 D.人们已能用天文望远镜观测到宇宙的边缘( )16.下列各种仪器中最适合科学家观察SARS病毒的是A显微镜 B.电子显微镜 C.扫描隧道显微镜( )17.用长柄金属汤匙取一勺白糖在蜡烛火焰上慢慢加热，白糖发生的变化正确的是A白糖先慢慢变成液体 B.白糖的颜色始终没有变化 C.白糖始终发生物理变化( )18.我国的“嫦娥工程”将按“绕月、落月和驻月”三步进行，预计XX年实施落月探测，下列设想你认为合理的是A月球车不需要进行防锈处理 B月球车必须配备降落伞，以确保安全着陆 C月球上可以放风筝 D月球上夜晚能看到流星划过月空( )19.下列描述错误的是A淡水是人类和其他生物生存的必需品 B.地球上的淡水资源十分丰富C地球上的多数地区缺水三、连线题与填图（共10分）20. 把下列实验器材与它在实验中相应的作用用线连起来。（5分）镊子 吸掉多余的水 吸水纸 夹取实验材料滴管 吸取少量的液体载玻片 染色碘酒 放置切片标本21. 在观察一个月月相活动中，丁丁在农历初四、农历初十、农历十五、农历二十三、农历二十七分别拍摄了一张照片，请你把拍摄日期填到对应照片的括号里。（5分） （ ） （ ） （ ） （ ） （ ）第二部分 实验探究园（35分）四、实验与探究（共35分）22观察右边显微镜图，回答下面问题。（4分）（1）写出下列部分的名称： （2）使用显微镜观察的方法和步骤可以概况为这样几步：安放、对光、 、调焦、 。23. 实验：小苏打和白醋的变化 （共14分）（1）小苏打和白醋各有什么特点。（2分）物质特点（可以从形状、颜色等方面描述）小苏打 白醋（2）如图一，在杯里放入一匙小苏打，然后倒入三匙白醋，看到了什么现象？（2分） （3）如图二，在杯口盖上一块玻璃片，用手触摸玻璃杯的外壁，手会有什么感觉？（2分） （4）如图三，将燃烧的细木条伸进玻璃杯中，观察 到什么现象？ （2分） （5）小苏打和白醋充分反应后，留下的液体还是白醋吗？如何证明？ （4分） （6）我知道科学家经过大量的研究，已经确定小苏打和白醋混合后,产生的这种新物质叫 气体。这样的变化属于 变化。（2分）24.下图是自来水与污水的比较及污水的净化过程。（10分）（1）在表格中填出自来水与污水有哪些不同。颜色沉淀物透明度自来水污水（2）导致水被污染的主要原因有 、 等。（3）污水净化过程的第一步叫 ，第二步叫 。25.铁生锈与什么因素有关呢？学六（1）班第三小组的同学进行了实验探究，他们用三个同样大小的盘子，其中两个分别装上水、菜油，取三枚同样大小的铁钉，把一枚铁钉放在空盘子里与空气接触，另一枚一半放在水里，还有一枚铁钉完全浸没在菜油里（见上图）。他们每天观察记录，观察到的现象如下表：（7分）第一天第二天第三天第四天A空盘子无变化无变化无变化有点生锈B水盘子水变色生锈锈多了锈更多了C菜油盘无变化无变化无变化无变化（1）实验结果分析：比较A盘子和B盘子，证明在有 时，铁钉容易生锈；比较 盘子和 盘子，证明在有空气时，铁钉容易生锈。（2）实验结论：铁在 的环境里容易生锈。（3）根据上述实验结果，我们应该怎样防止铁生锈？请列举2种方法。 第三部分 实践应用场（12分）五、实践与应用（共12分） 26. 探索放大镜的奥秘。（共12分）在阳光下玩放大镜，让光线通过并聚集在一点上，然后把这个明亮的光斑对准纸片，过了一会纸片就会冒烟或燃烧起来，这就是有趣的放大镜点火实验。不过，放大镜的主要用途是作为人们常用的观察工具。因为人的最高视力也只能看清楚1/5毫米大小的微小物体，而使用放大镜观察物体能看到更多的细节。（1）放大镜在我们的生活、工作、学习中被广泛使用，请照样子举两个例子。（2分）使用放大镜的职业或工作用放大镜做什么古董收藏家利用放大镜鉴别古董，查看细节。（2）放大镜是凸透镜，有放大物体图像的功能，特点是中间 边缘 。（2分）（3）放大镜的放大倍数和镜片的凸度有关。用下面三个透明玻璃片（侧面图）制作的放大镜，放大倍数最大的是（ ）。 （2分）A B C（4）右图的小明正用放大镜观察食盐颗粒，可是方法不对，看不清食盐晶体的形状，请告诉他正确使用放大镜的方法。 （2分） （5）下面哪些情况是借助放大镜就可以观察到的？请在对应的括号里打上。（4分）蟋蟀的“耳朵”在足的内侧。（ ）洋葱表皮的细胞里有细胞核。（ ）电视机屏幕上的图像是由色彩点组成的。（ ）食盐的晶体是很有规则的，都是立方体。（ ） 附送：2019年第二学期六年级英语期中测试卷Part 1 Listening （第一部分 听力 共25分）略Part 2 Phonetics, Vocabulary and Grammar （第二部分 语音，词汇和语法 共41分）.Fill in the blanks according to the phonetic transcriptions.（根据音标完成句子 共25分）26. There are a lot of fantastic _/pQlEsIz/ for us to visit in Beijing.27. Do you remember our _/FlaIt/ number?28. Have you _/BrO:t/ your boarding card yet?29. Jane wants to be a _/mOdl/ in the future.30. How heavy does the suitcase _/WeI/ ?.Choose the best answer （选择最恰当的答案 共15分）31. _/wVns/ upon a time there was a poor farmer called Fred. The word of the sound should be _/wVns/.A. Wons B. Once C. Ones D. Ones32. Which of the following underlined parts is different in pronunciation from others?A. There is a dragon boat on the river. B. He was the winner in the 100-metre race.C. What happened later? D. I dont like to eat sweet moon cakes.33. My uncle is _ engineer. He loves sweets and always has a lot. He got _ terrible toothache and had to stay at home yesterday.A. aa B. ana C. / D. an/34. Would you like _ a bottle of orange juice? No , thanks. Id rather _ some water.A. to drinkhave B. drinkinghave C. to drink.to have D. drinkingto have 35I have given him _ , but he has never taken any of it. A. many advices B. some advice C. a few advices D. several advices36. You are _ English, so you should practice more. A. good at B. good for C. poor at D. poor with 37. Eddie wants a new skirt. She doesnt like the old _ . A. one B. ones C. some D. /38. You drink _ coffee. Its not good for you. A. enough B. much too C. too much D. too many39. When someone leaves rubbish on the ground, you _ stop him immediately. A. can B. should C. shouldnt D. neednt40. A: _ is it from your school to your home? B: Its about ten minutes work.A. How long B. How far C. How many D. How soon41. There _ a book show in the book shop tomorrow evening. A. was B. is going to have C. will have D. is going to be42. _ your rain coat. Its raining outside. A. Put on B. Wear C. Put down D. Dress up43. I plan to stay in Shanghai _ two weeks. A. in B. for C. to D. on44. Sorry, I cannot give you any money, I have _ with me. A. few B. a few C. little D. a little45. A: I think there will be more pollution on the earth. B: _.A. You may think soB. I agree with youC. Thats all rightD. Im afraid not. plete the following passage with the words or phrases in the box. Each can only be used once.（将下列单词或词组填入空格。每空格限填一词，每词只能填一词。 共5分）A. strange B. dangerous C. later D. exhibit E. before F. after Do you miss Detective Conan? The smart Japanese boy is ing back! The 19th Conan film, Detective Conan: Sunflowers of Inferno, will begin _46_ this month. In the movie, Conan will meet his “old friend”, Kaito Kid. Kid is a quick thief. He likes to tell of his plans _47_ stealing（偷窃）.Conan has always wanted to catch him. A businessman buys a famous painting and wants to _48_ it. But Kid tells everybody he will take the painting. Everyone starts to worry. Only Conan finds something _49_. Kid usually steals expensive jewels（珠宝）. Why does he want a paining this time? Conan decides to chase Kid and find the answer. It will surely be a _50_ trip. Can Conan fix the problem and stay safe?46. _ 47. _ 48. _ 49. _ 50._. plete the sentences with the given words in their proper forms.（用所给单词的适当形式完成下列句子 共6分）51. It will be my friends _ birthday next week. ( twelve )52. It is _ for us to finish the work in just 30 minutes. ( possible )53. With regularly exercise, Jack looks much _ than before. ( health )54. She thinks it is one of the most beautiful _ ( scarf ).55. Stave Jobs has been _ for three years. ( die )56. We usually have a great _ at the Spring Festival. ( celebrate ). Rewrite the following sentences as required.（根据所给要求，改写下列句子，每空格限填一词 共10分）57-58. I have already bought a film ticket.（改为否定句） I _ bought a film ticket _.59-60. My mother will be back in half an hour. （对划线提问） _ _ will your mother be back?61-62. His favorites outdoor activity is playing badminton in the playground.（保持意思不变） He _ playing badminton in the playground _.63-64. It is fun to fly kites with my friends in the park. （改为感叹句） _ _ it is to fly kites with my friends in the park!65-66. be, an, good-looking, is, Kitty, will, actress, active, and, possibly, she, because _Part 3 Reading and Writing （第三部分 读写）. Reading prehension （阅读理解 共24分）Choose the best answer （根据短文内容，选择最恰当的答案 共6分）Golden Xian 4-day Group Tour (NO SHOPPING)Duration: four days/three nightsDeparture time: Every FridayTransportation: By plane Highlights(亮点): This no-shopping tour will let you have more time to visit the tourist attractions in Xian, including the Terracotta Warriors(兵马俑) Museum, Shanxi History Museum, City Wall and the Muslim Street(回民街). You can also have one day as free time to go anywhere you want in Xian.Harbin Ice and Snow World Explore TourDuration: five days/three nightsDeparture time: Every SaturdayTransportation: By trainHighlights(亮点): This five-day trip will take you to experience(经历) the wonderful winter in Harbin. You can enjoy the beautiful ice lanterns and snow sculptures(冰雕) and have a close look at Siberian(西伯利亚) Tiger. Have tons of fun in this fantastic world of ice and snow!Chengdu & Jiuzhaigou Valley Tour (NO SHOPPING)Duration: seven days/six nightsDeparture time: Every MondayTransportation: By planeHighlights(亮点): This tour highlights the great Jiuzhaigou Valley, a fantastic natural beauty with blue lakes, waterfall and forests. Besides, this tour will also take you to go around the city of Chengdu. You can have the delicious spicy food. Enjoy the natural beauty and tasty food!Choose the best answer (选择最恰当的答案)( ) 67. What does the underlined word “duration” mean in the passage?A. how long it will take you to arrive thereB. how long you will stay thereC. when you will leave for the placeD. when you will leave the place( ) 68. How many tourist attractions can people visit in Xian Tour?A. Two B. Three C. four D. Five( ) 69. What cant people do when they visit Harbin?A. Enjoy the beautiful ice lanterns and snow sculptures.B. Have delicious spicy food.C. Play with snow.D. Look at the Siberian Tiger.( ) 70. Tom wants to know more about the Chinese history. Which tour can he choose?A. Golden Xian 4-day Group Tour.B. Harbin Ice and Snow Word Explore Tour.C. Chengdu & Jiuzhaigou Valley Tour.D. None of them.( ) 71. Kitty is going out for the National Day holidays with her parents, but she doesnt like taking a plane. Which tour can she choose?A. Golden Xian 4-day Group Tour.B. Harbin Ice and Snow Word Explore Tour.C. Chengdu & Jiuzhaigou Valley Tour.D. None of them.( ) 72. Which of the following statements is NOT TRUE?A. Alice will have a holiday from Thursday to next Tuesday, so she can choose the Xian Tour.B. Tourists can walk along the street in Chengdu and have the food they like.C. Tourists will be taken to some shops if they choose Chengdu & Jiuzhaigou Valley tour.D. Tourists can go anywhere they want in Xian when they have free time.Choose the words or expressions and plete the passage (选择最恰当的单词或词组完成短文 共6分)Mothers Day is celebrated in the USA. Its also a holiday in some _73_ countries. Its on the second Sunday in May. It is a day to thank mothers. On that day mothers usually _74_ flowers and cards from their family members. On the cards, children will write “thanks, mum”, “To the best mother in the world”, “Best wishes for Mothers Day” and so on.Where does the _75_ for the holiday e from? We should thank Miss Anna M. Jarvis. She lived in West Virginia. Her mother died on May 9，1905. She had a deep love for her mother. She wrote letters to same _76_ persons. In her letters she asked them to decide a day for_77_ mother. Then Mothers was made on the second Sunday in May by the USA in1913.On Mothers Day, children give presents tor their mothers, and then the whole family goes out and tries to do _78_ for their mothers to make them happy.( ) 73. A. the other B. another C. others D. other( ) 74. A. send B. get C. buy D. have( ) 75. A. information B. news C. story D. idea( ) 76. A. kind B. interesting C. import D. good( ) 77. A. her B. every C. some D. all( ) 78. A. something nice B. nice something C. everything nice D. everything niceRead the passage and fill the blanks with proper words (在短文的空格内填入适当的词，使其内容通顺，每空限填一词，首字母已给)：（共6分）When there is an earthquake (地震), what should we do?You are inside:l Stay inside. The most dangerous thing to do during the shaking of an earthquake is to try l _79_ the building before objects can fall on you.l Stay under a sturdy(坚实的) table or deck. Cover your h _80_, neck and face. If a table is not nearby, drop(蹲下) to the floor and move toward the nearest inside wall.l If you are inside a large and crowed building like a stadium, stay put(别动)! Thousands of people might trample(踩踏) you on the w_81_ to an exit. Cover your head. You have a better chance of living.You are outside:l Drop and cover. Move toward an o_82_ area if possible away from power lines and structures.l Once in the open, stay there until the shaking s_83_.l If you are n_84_ tall buildings, hide under doorways. It is estimated(估计) that the streets of Shanghai will be covered by tons of broken glass in some areas after a big quake.79. l_ 80. h_ 81. w_ 82. o_ 83. s_ 84. n_Answer the questions (根据短文内容回答下列问题 共6分)This April 2 is the 210th birthday of Hans Christian Andersen. He is best known for his fairy tales(童话). Both children and adults love his wonderful stories.The Ugly Duckling is one of the most popular fairy tales in the world. In fact, Andersen was an ugly duckling. In 1805, he was born in a poor family in Denmark. As a young boy, Andersen was tall, ugly and had a very big no0se. His friends always made jokes about his big nose. Later, because of his fathers death, little Andersen had to make a living by himself. He once worked as a tailor(裁缝) and made money in a theater. The difficulties in life helped him create his fairy tales.Andersen did well in paper cuttings. He made lots of paper cuttings of swans, clowns(小丑) and angels. He also loved traveling. He traveled to many countries while writing of his trips. His famous saying was：“To travel is to live.”Today, Andersen is famous around the world. His fairy tales have been printed into over 100 languages. In Copenhagens harbor, there is a statue(雕像) of the little mermaid(美人鱼) to remember him.85. When was Andersen born?_.86. His friends always laughed at his big nose, didnt they?_.87. Did Andersens father die when he was young?_.88. What was Andersen good at?_.89. Why did people build a statue of the little mermaid in Copenhagens harbor?_.90. What do you think of Andersen?_. Writing(写话 共10分)Writing a passage of at least 50 words on the topic “I want to be a/an _ in the future”. (以“我未来想做一名_”为题写一篇不少于50词的短文，标点符号不计入总词数。)Use the following points as a reference:1. What do you want to be in the future?2. Why do you want to do this job?3. What must you do now?答案第二部分 词汇和语法31 B 32 A 33 D 34 A 35 B 36 C 37 A 38 C39 B 40 B 41 D 42 A 43 B 44 C 45 B 46 C47 E 48 D 49 A 50 B51 twelfth 52 impossibly 53 healthier 54 scarves55 dead 56 celebration 57-58 havent, yet 59-60 How, soon 61-62 likes, best 63-64 What, fun65-66 Kitty will possibly be to an actress, because she is good-look and active.第三部分 读写67 B 68 C 69 B 70 A 71 B 72 C 73 D 74 B 75 D 76 C 77 D 78 A 79 leave 80 head 81 way 82 open 83 stops 84 near85 In 1805.86 Yes, they did.87 Yes, he did.88 Andersen did well in paper cuttings.89 To remember him.90 He is clever.