Chemical Abundances of Planetary Nebulae in M33

武汉2024年小学六年级上册英语第四单元测验试卷考试时间：100分钟（总分:120）A卷考试人：_________题号一二三四五总分得分一、综合题(共计100题)1、What do you call a person who plays music?A. ArtistB. MusicianC. WriterD. Painter2、填空题：The _____ (叶子) change color in autumn.3、选择题：What do we call a person who runs fast?A. WalkerB. RunnerC. JoggerD. Sprinter4、听力题：The ______ of a wave is the distance between two peaks.5、听力题：The main use of acetic acid is in _____.6、听力题：Gravity is weaker on the moon than on _______.7、听力题：The chemical formula for mercury(II) chloride is ______.8、ts are adapted to survive in extremely ______ environments.(某些植物适应在极端环境中生存。

) 填空题：Some pla9、What is the capital of Argentina?A. Buenos AiresB. SantiagoC. LimaD. Bogotá答案: A. Buenos Aires10、填空题：We are making ________ (果汁) for breakfast.11、填空题：The invention of the printing press changed the way ________ were distributed.12、What is the capital of Colombia?A. BogotáB. MedellínC. CaliD. Cartagena答案:A13、填空题：A ______ (蜥蜴) can be found sunbathing on rocks.14、填空题：The ________ (太阳) rises in the east.15、听力题：She counts _____ (to/from) ten every day.16、听力题：We make ______ (cookies) for the party.17、Which animal can fly?A. DogB. FishC. BirdD. Cat答案:C18、听力题：A ______ is a small creature that can be found in ponds.19、填空题：I enjoy _______ new friends at school.20、听力题：The chemical formula for sodium nitrite is __________.21、听力题：I enjoy ______ (playing) board games.22、What is the name of the furry animal that is often kept as a pet?A. CatB. DogC. HamsterD. Rabbit答案: B23、听力题：The process of combining elements to form compounds is called _______.24、What do you call the time it takes for the Earth to rotate once?A. MonthB. YearC. DayD. Hour25、What is the main ingredient in salad?A. MeatB. VegetablesC. FruitD. Grains答案:B26、听力题：The teacher is very ___ (helpful).27、听力题：The capital of Romania is __________.28、听力题：The element with atomic number is __________.29、听力题：In chemistry, the smallest unit of an element is called an _____.30、Which month comes after January?A. FebruaryB. DecemberC. MarchD. April答案:A31、填空题：The __________ (种植时间) can determine the success of crops.32、填空题：I enjoy playing __________ with my family. (游戏)33、What do you call a house made of ice?A. IglooB. CabinC. CastleD. Hut答案:A34、听力题：The boiling point of ethanol is ______ degrees Celsius.35、What is 9 + 6?A. 14B. 15C. 16D. 17答案: A36、What is the capital of Mexico?A. CancunB. GuadalajaraC. Mexico CityD. Monterrey答案: C. Mexico City37、听力题：The Earth's surface is shaped by a combination of internal and ______ forces.38、填空题：The _____ (香草) in my garden smells very good.39、填空题：The ancient Greeks created beautiful ______ (雕塑).40、填空题：Grandma is my ______ (奶奶). She tells me stories about ______ (过去) and teaches me how to bake cookies.The movie was very _______ (有趣的).42、听力题：The clock _____ ticks loudly. (always)43、填空题：The butterfly has _______ (五彩斑斓) wings.44、What is the capital of Hungary?A. BudapestB. DebrecenC. SzegedD. Miskolc答案: A45、听力题：Organic compounds contain _______ atoms.46、What do we call the main character in a play or story?A. ProtagonistB. AntagonistC. Supporting characterD. Narrator47、听力题：The ________ (monkey) swings in the trees.48、选择题：What do we call the season when flowers bloom?A. WinterB. SpringC. SummerD. Fall49、填空题：A parakeet can be taught to ______ (说话).50、听力题：My brother enjoys playing ____ (video games) online.51、听力题：I like to ___ (explore/discover) new things.52、填空题：The ______ (小鸡) pecks at the ground, looking for seeds and ______ (虫子).Substances that speed up chemical reactions without being consumed are called _____.54、transportation equity) ensures access for all. 填空题：The ____55、听力题：The ______ helps with the detoxification of the liver.56、What do you need to play soccer?A. BallB. RacketC. BatD. Paddle57、填空题：The ________ can be found in many colors.58、What do we use to write on paper?A. BrushB. PencilC. SpoonD. Fork答案: B59、选择题：What do we call a person who works in a restaurant?A. ChefB. WaiterC. CookD. All of the above60、What is the name of the famous mountain in Japan?A. Mount FujiB. Mount EverestC. Mount KilimanjaroD. Mount McKinley答案:A. Mount Fuji61、听力题：A satellite orbits around the _____.62、填空题：The _____ (小鸭) swims alongside its mother.63、What is the term for a young sheep?A. CalfB. FoalC. LambD. Kid答案:C64、 a _______ (红色的) dress to the party. 填空题：She wrot65、选择题：Which season comes after winter?A. AutumnB. SummerC. SpringD. Rainy66、听力题：Chemical equations must be balanced to obey the law of ________ of mass.67、听力题：The process of changing from a liquid to a gas is called ______.68、听力题：The moon is _______ (full) tonight.69、 Empire was famous for its __________ (法律) and governance. 填空题：The Roma70、填空题：My sister is a great __________ (伙伴) in games.71、填空题：I have a robot ________ (玩具名称).72、 Rights Movement aimed to end ________ (种族歧视). 填空题：The Civi73、填空题：I like to invite friends over to play with my __________ (玩具名).74、What is the name of the famous bridge in San Francisco?A. Brooklyn BridgeB. Golden Gate BridgeC. London BridgeD. Sydney Harbour Bridge答案：B75、填空题：The ancient Romans built extensive ________ (道路系统).76、What do you call a person who studies earthquakes?A. GeologistB. MeteorologistC. SeismologistD. Astronomer答案:C77、听力题：A ____ is known for its quick movements and long legs.78、填空题：The hummingbird can hover in _______ (空中).79、听力题：The sun sets in the _______ (west).80、填空题：I love to watch the __________ after a storm. (彩虹)81、What is the capital of Thailand?A. BangkokB. PhuketC. Chiang MaiD. Pattaya答案:A82、听力题：The process of making wine involves fermentation of _______.83、听力题：An atom consists of protons, neutrons, and _____.84、听力题：The Earth's crust is made up of various geological ______.85、听力题：The atomic structure of an atom consists of protons, neutrons, and _____ (electrons).86、听力题：It is _____ to swim in the lake. (cool)87、填空题：My favorite ________ (玩具类型) is always next to me.88、选择题：What do we call a person who studies the weather?A. MeteorologistB. ClimatologistC. GeologistD. Biologist89、听力题：My cousin makes ____ (jewelry) as a hobby.90、听力题：My favorite color is _____ (蓝).91、听力题：Oxidation involves the loss of ______.92、听力题：My sister has a pet ________.93、填空题：The ancient Egyptians believed in ________ (来世).94、填空题：The teacher is _______ (鼓励) us to read.95、听力题：The _______ helps maintain balance in nature.96、What do we drink from?A. PlateB. CupC. ForkD. Knife答案：B97、填空题：My cat likes to chase after a ________.98、听力题：The chemical formula for nitric acid is ________.99、What is the main ingredient in chocolate?A. SugarB. CocoaC. MilkD. Flour答案: B. Cocoa100、听力题：Matter can exist in three states: solid, liquid, and ______.。

小学上册英语第四单元真题(含答案)英语试题一、综合题(本题有100小题，每小题1分，共100分.每小题不选、错误，均不给分)1. A pendulum swings back and ______.2.The girl is very ________.3.How many colors are there in a rainbow?A. 5B. 6C. 7D. 84.The _____ (松鼠) is gathering nuts for the winter.5.I saw a _______ (小动物) at the nature reserve.6.The _______ of an object can be tested with a balance.7.My dog enjoys a _______ (长时间) walk every day.8.Exothermic reactions release ______.9.My family has a ________ that we take care of.10.The periodic table organizes elements by their _____.11.My mom _____ breakfast every morning. (prepares)12. A mixture of two or more metals is called an ______ alloy.13.I enjoy playing ______ (团体运动) with my friends after school.14.The _______ (The Louisiana Purchase) doubled the size of the US in 1803.15.How many legs does a dog have?A. 2B. 3C. 4D. 516.My pet ______ (狗) loves to play with other pets.17.__________ (反应动力学) examines the speed and mechanisms of reactions.18.I enjoy going to the ______ (博物馆) with my family. We learn about history and see ______ (古老的东西).19.The city of Nicosia is the capital of _______.20. A wave can be described by its amplitude, wavelength, and ______.21.What is 3 + 5?A. 7B. 8C. 9D. 10答案:B22.What is the primary ingredient in a traditional gazpacho?A. TomatoesB. CucumbersC. PeppersD. All of the above23.What is the name of the fairy tale character who had a long braid?A. CinderellaB. RapunzelC. Snow WhiteD. Belle24. A ________ is a large natural area without human development.25.Which fruit is green on the outside and red on the inside?A. KiwiB. WatermelonC. GrapesD. Peach答案:B Watermelon26.The _______ (Magna Carta) was signed in 1215, limiting the power of the king.27. A _____ (环境) can change how plants grow.28. A ______ is a collection of data gathered from observations.29. A ________ (植物观察志愿者) contributes to knowledge.30.________ (草) covers the ground in many parks.31.What do we call the practice of planting trees to improve the environment?A. ReforestationB. DeforestationC. AfforestationD. Urbanization答案:A32.My friend’s birthday is in ____.33.What do you call the main character in a play?A. ActorB. DirectorC. ProtagonistD. Scriptwriter34.The rain makes everything ______ (clean) outside.35.The __________ (历史的涵养) cultivates appreciation.36.I want to ______ (learn) how to cook.37.When it rains, I like to stay __________ with a good book. (室内)38.The _____ (tangerine) tree produces citrus fruit.39.What do we drink from?A. PlateB. CupC. BowlD. Fork答案:B40.What is the first animal to go into space?A. MonkeyB. DogC. CatD. Mouse41.The __________ is a notable landmark in history.42.Distilled water is free of ______.43.The __________ is the main source of food for many animals.44.What do you call the process of taking water from the ground?A. ExtractionB. IrrigationC. DistillationD. Filtration答案:A45.The rabbit's hind legs are powerful for ______ (跳跃).46.The beach has ______ (soft) sand.47.The __________ is the center of the earth.48.In the morning, the air is very ______ (清新).49.I need to _____ (buy/sell) some groceries.50.In the morning, I brush my ________ (牙齿) and wash my ________ (脸).51.The __________ is known for its rich history and culture. (意大利)52.The _____ (动物) rely on plants for food and shelter.53.The _______ is the part of an atom that has a positive charge.54.The _____ (花园) is a peaceful retreat.55.What is the capital of Ghana?A. AccraB. KumasiC. TamaleD. Takoradi56.The ________ (农业与环境研究) are interconnected.57.What is the capital city of Italy?A. FlorenceB. RomeC. VeniceD. Milan58.I can make my own ________ (玩具) from recycled materials.59.What do we call the movement of tectonic plates?A. Continental DriftB. ErosionC. WeatheringD. Subduction60.The body part that helps us breathe is called the ______.61. A lever can help lift heavy ______.62.What do you call a story based on real events?A. FictionB. Non-fictionC. NovelD. Myth答案:B63.What do we call a person who studies plants?A. BotanistB. ZoologistC. GeologistD. Ecologist64.I have a ___ (feeling) it's going to rain.65.The ______ has a strong family bond.66.I love to explore ______ with my friends.67.The teacher is _____ (kind/mean).68.What is the largest ocean on Earth?A. Atlantic OceanB. Arctic OceanC. Indian OceanD. Pacific Ocean答案:D69.The first president of the United States was ________ (乔治·华盛顿).70.What is the capital of Spain?A. MadridB. BarcelonaC. ValenciaD. Seville答案:A71.The chemical symbol for gallium is _____.72.Which insect produces honey?A. AntB. ButterflyC. BeeD. Mosquito答案:C73.My sister enjoys __________ (舞蹈) classes after school.74.Certain plants can ______ (影响) local culture significantly.75.The ____ has large eyes and can see well in the dark.76.What do astronauts wear to protect themselves in space?A. PajamasB. Space suitsC. RaincoatsD. Regular clothes77.The _______ (The fall of the Berlin Wall) symbolized the end of the Cold War.78.The historian writes about important _____ (事件).79.What do you call a person who studies the weather?A. MeteorologistB. ClimatologistC. GeologistD. Hydrologist答案:A80.The finch is a small _______ (鸟) that sings beautifully.81.What do you call a feeling of great happiness?A. SadnessB. JoyC. AngerD. Fear答案:B82.The ________ is full of tiny seeds.83.The sun is very ________ today.84.Ancient Egyptians believed in many ________.85.What is the capital city of Russia?A. MoscowB. St. PetersburgC. KievD. Minsk答案:A86.What is the main ingredient in chocolate?A. CocoaB. SugarC. MilkD. Flour答案:A87. A _____ occurs when the moon is fully illuminated.88.What is the name of the bright star that marks the North Star?A. SiriusB. PolarisC. VegaD. Betelgeuse89.The _____ (铁路) connects cities.90.The capital of Haiti is __________.91.What is the name of the famous ancient city in Peru?A. CuscoB. Machu PicchuC. NazcaD. Arequipa答案:B Machu Picchu92.When it snows, everything looks __________. (洁白的)93.We are ___ the park. (visiting)94.My favorite game on my tablet is about ________ (建设城市). I can build parks and ________ (商店).95.The capital of Brazil is _______.96.Many plants produce ______ (种子) in the fall.97.She is wearing a ______ (dress).98.What is the main ingredient in yogurt?A. MilkB. SugarC. WaterD. Cream答案:A99.What is the season after spring?A. WinterB. SummerC. FallD. Autumn答案:B100.What is the name of the famous British author known for "Harry Potter"?A. J.K. RowlingB. Philip PullmanC. C.S. LewisD. Roald Dahl答案:A。

小学下册英语第二单元寒假试卷[含答案]考试时间：80分钟（总分:100）B卷一、综合题(共计100题共100分)1. 填空题：Many cultures use plants in __________ (传统).2. 填空题：The _____ (青蛙) sings a lovely tune at dusk.3. 选择题：Which of these is not a planet?A. MarsB. EarthC. SunD. Jupiter4. 填空题：Leaves collect ______ (阳光).5. 填空题：A _______ (金鱼) can be a nice pet.6. 选择题：What is the capital of Cyprus?a. Nicosiab. Larnacac. Paphosd. Famagusta答案:a7. 选择题：What is the name of the art of folding paper?A. OrigamiB. DrawingC. PaintingD. Sculpture答案:A8. 听力题：The chemical formula for -hexanol is ______.9. 听力题：The chemical symbol for strontium is ______.10. 听力题：The ____ has four legs and likes to chase mice.11. 选择题：What do you call the imaginary line that divides the Earth into the Northern and Southern Hemispheres?A. EquatorB. Prime MeridianC. Tropic of CancerD. International Date Line答案:A12. 听力题：The chemical formula for potassium iodide is ______.13. 听力题：The chemical symbol for cadmium is __________.14. 选择题：What is the name of the large desert in Africa?A. SaharaB. GobiC. KalahariD. Atacama15. 填空题：I want to _______ a new video game.16. 听力题：The bat uses sound to find its ______.17. 选择题：What is the main color of a ripe banana?A. GreenB. YellowC. BrownD. RedThe cake is ________ for my birthday.19. 填空题：I can ______ (提升) my skills through practice.20. 填空题：The elephant sprays water with its ______ (鼻子). It is very ______ (有趣).21. 选择题：What is the name of the planet we live on?A. MarsB. EarthC. VenusD. Jupiter22. 选择题：What is the name of the famous clock tower in London?A. Big BenB. The ShardC. The Eiffel TowerD. The Colosseum答案: A23. 听力题：The chemical reaction between an acid and a base is called _____.24. 选择题：How many zeros are in one thousand?A. OneB. TwoC. ThreeD. Four25. 听力题：The chemical symbol for thallium is ______.26. 选择题：What is the main feature of a comet?A. It has a solid surfaceB. It has a tailC. It orbits the SunD. It is very large27. 听力题：The boy likes to play ________.My _____ (毛绒玩具) is my favorite.29. 填空题：I can take my ________ (玩具) on adventures.30. 听力题：The main source of energy for the Earth is the ______.31. 选择题：Which shape is round?A. SquareB. TriangleC. CircleD. Rectangle答案:C32. 听力题：The ________ (watermelon) is juicy.33. 填空题：The fish swims gracefully in the ______ (水).34. 听力题：A chemical bond forms when two atoms share ________.35. 选择题：What do you call a person who performs in a circus?A. AcrobatB. ClownC. JugglerD. All of the above答案:D36. 听力题：My neighbor is a ______. He enjoys storytelling.37. 听力题：I want to ________ (find) treasure.38. 听力题：A ____ is a playful animal that loves to chase after balls.39. 听力题：Solar panels convert sunlight into ______.Plants can be grown from ______ (扦插) or seeds.41. 选择题：How long does it take for the Earth to orbit the sun?A. 365 daysB. 24 hoursC. 30 daysD. 12 months42. 选择题：Which insect is known for its colorful wings?A. AntB. BeetleC. ButterflyD. Mosquito答案:C43. 选择题：What is the common name for a large land mammal with tusks?A. RhinoB. ElephantC. HippoD. Giraffe答案: B44. 听力题：The popcorn is _______ (popping) in the microwave.45. 听力题：The chemical formula for ammonium dichromate is __________.46. 听力题：Metallic elements are usually good ______ of heat.47. 填空题：Plants can be ______ (药用) and helpful.48. 填空题：The _______ (青蛙) has a unique croak.49. 听力题：The capital of Cuba is __________.50. 听力题：A ______ is a small, timid animal.The process of erosion involves the movement of soil and rock by wind, water, or ______.52. 选择题：Which fruit is green on the outside and pink on the inside?A. KiwiB. AppleC. MelonD. Pear53. 填空题:I enjoy playing ________ games on my tablet.54. 填空题：My friend is my best _______ who always listens.55. 选择题：What do we call the sport of jumping over a bar?A. High JumpB. Long JumpC. Pole VaultD. Triple Jump答案:A56. 填空题：A cow's moo can signify different ________________ (情绪).57. 听力题：The _____ (fireplace) is warm.58. 选择题：Which animal lives in a den?A. LionB. BearC. CatD. Dog59. 选择题：What do you call a person who sells food?A. ChefB. CookC. CatererD. All of the above答案:DThis ________ (玩具) can move by itself!61. 选择题：What do you call a person who sells flowers?A. FloristB. GardenerC. FarmerD. Botanist答案:A62. 听力题：The primary source of renewable energy is ______.63. 填空题：A _____ (森林) is made up of many trees.64. 填空题：The snake can be found in _________ (森林) and deserts.65. 填空题：I enjoy making up stories about my _________ (玩具).66. 填空题：A ______ (马) can be ridden in races.67. 选择题：What do you call the place where you borrow books?A. LibraryB. StoreC. ParkD. School答案:A68. 选择题：How many strings does a standard guitar have?A. FourB. FiveC. SixD. Seven69. 填空题：A _____ (草坪) needs regular mowing.70. War was a period of tension between __________ (两个超级大国). 填空题：The Cold71. 选择题：What is the main ingredient in bread?A. SaltB. SugarC. FlourD. Water答案: C. Flour72. 选择题：What is the name of the famous landscape feature in Arizona?A. Grand CanyonB. YellowstoneC. YosemiteD. Zion答案:A73. 填空题：I love to _______ (观察) wildlife.74. 听力题：Temperature measures how hot or ______ something is.75. 选择题：What do you call a person who plays a musical instrument?A. MusicianB. PainterC. WriterD. Actor答案:A76. 听力题：The chemical symbol for calcium is ______.77. 听力题：The cake is _____ (delicious/yummy).78. 填空题：My favorite thing about school is ________ (科学).79. 听力题：Combustion reactions require fuel and _____.My brother collects ________.81. 选择题：What do we call the chemical process that plants use to make food?A. PhotosynthesisB. RespirationC. FermentationD. Digestion答案: A. Photosynthesis82. 选择题：What do you call a person who writes books?A. NovelistB. EditorC. PublisherD. Librarian83. 填空题：We should always be ________ (尊重) to others.84. 选择题：Which animal is known as man's best friend?A. CatB. DogC. BirdD. Fish答案: B85. 填空题：My teacher is very __________ (聪慧的).86. 选择题：What color are emeralds?A. BlueB. RedC. GreenD. Yellow答案:C87. 填空题：In winter, I wear a ______.88. 听力题：The chemical symbol for mercury is _______.My dream is to have a room full of ____. (玩具名称)90. 选择题：How do you say "thank you" in Italian?A. GrazieB. MerciC. ArigatoD. Gracias91. 选择题：What is the name of the fairy tale character who fell asleep for 100 years?A. CinderellaB. Sleeping BeautyC. Snow WhiteD. Belle92. 听力题：We will have a ________ next week.93. 填空题：The manatee is also called a _______ (海牛).94. 选择题：What do we call a group of stars forming a pattern?A. GalaxyB. ConstellationC. NebulaD. Cluster答案: B95. 听力题：My brother has a _____ of marbles. (bag)96. 听力题：The chemical symbol for manganese is ______.97. 听力题：They like to ________ outside.98. 听力题：The ______ helps us learn about science.99. 填空题：I am excited about the ________ (科学博览会) at school this year. I will present my ________ (项目).100. 听力题：Honey is made by ______.。

小学下册英语第6单元测验卷[有答案]英语试题一、综合题(本题有50小题，每小题1分，共100分.每小题不选、错误，均不给分)1 I enjoy ______ (与同龄人互动).2 Fish breathe underwater using their __________.3 What is 8 divided by 2?A. 2B. 3C. 4D. 54 What do we breathe?A. WaterB. AirC. FoodD. Light答案: B5 We have ______ (math) class at o'clock.6 A _______ reaction is one that absorbs heat. (吸热)7 The kitten likes to chase a _________. (线)8 It is ________ (sunny) today.9 My dad is very ________.10 My neighbor has a big _______ (我邻居有一只大_______).11 What is the name of the famous wizarding school in Harry Potter?A. BeauxbatonsB. DurmstrangC. HogwartsD. Ilvermorny答案:C12 The ice is very ___. (slippery)13 My uncle is a ______. He enjoys woodworking.14 The whale sings deep in the _________. (海洋)15 The __________ (历史的叙述) tells our stories.16 I have a _______ (surprise) for you.17 My sister is my best ______ (朋友). We play games together and share our ______ (秘密).18 I like to ______ (参加) community projects.19 The capital city of Cuba is __________.20 A saturated solution contains the maximum amount of _____ that can dissolve.21 What is the main ingredient in pizza sauce?A. CheeseB. TomatoC. MeatD. Vegetables答案:B22 Certain plants have developed unique ______ to thrive in their environments. (某些植物发展出独特的特征以适应其环境。

牛津大学称用龙舌兰提炼生物燃料更环保
佚名
【期刊名称】《生物加工过程》
【年(卷),期】2011(9)5
【摘要】牛津大学史密斯企业与环境学院的科学家们研究发现，利用龙舌兰属植物提炼生物燃料更为生态环保。

龙舌兰属植物需水少，生长快，而且可产生大量的糖类物质，此外，用龙舌兰属植物提炼的生物燃料，CO2排放量仅为35g／J，而用玉米提炼的生物燃料CO2排放量高达85g／J。

【总页数】1页(P31-31)
【关键词】龙舌兰属植物;生物燃料;牛津大学;生态环保;提炼;CO2排放量;糖类物质;科学家
【正文语种】中文
【中图分类】TQ517
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因版权原因，仅展示原文概要，查看原文内容请购买。

应用地球化学元素丰度数据手册迟清华鄢明才编著地质出版社·北京·1内容提要本书汇编了国内外不同研究者提出的火成岩、沉积岩、变质岩、土壤、水系沉积物、泛滥平原沉积物、浅海沉积物和大陆地壳的化学组成与元素丰度，同时列出了勘查地球化学和环境地球化学研究中常用的中国主要地球化学标准物质的标准值，所提供内容均为地球化学工作者所必须了解的各种重要地质介质的地球化学基础数据。

本书供从事地球化学、岩石学、勘查地球化学、生态环境与农业地球化学、地质样品分析测试、矿产勘查、基础地质等领域的研究者阅读，也可供地球科学其它领域的研究者使用。

图书在版编目（CIP）数据应用地球化学元素丰度数据手册/迟清华，鄢明才编著. －北京：地质出版社，2007.12ISBN 978－7－116－05536－0Ⅰ. 应… Ⅱ. ①迟…②鄢…Ⅲ. 地球化学丰度－化学元素－数据－手册Ⅳ. P595－62中国版本图书馆CIP数据核字（2007）第185917号责任编辑：王永奉陈军中责任校对：李玫出版发行：地质出版社社址邮编：北京市海淀区学院路31号，100083电话：（010）82324508（邮购部）网址：电子邮箱：zbs@传真：（010）82310759印刷：北京地大彩印厂开本：889mm×1194mm 1/16印张：10.25字数：260千字印数：1－3000册版次：2007年12月北京第1版•第1次印刷定价：28.00元书号：ISBN 978－7－116－05536－0（如对本书有建议或意见，敬请致电本社；如本社有印装问题，本社负责调换）2关于应用地球化学元素丰度数据手册（代序）地球化学元素丰度数据，即地壳五个圈内多种元素在各种介质、各种尺度内含量的统计数据。

它是应用地球化学研究解决资源与环境问题上重要的资料。

将这些数据资料汇编在一起将使研究人员节省不少查找文献的劳动与时间。

这本小册子就是按照这样的想法编汇的。

小学上册英语第二单元测验卷(有答案)英语试题一、综合题(本题有50小题，每小题1分，共100分.每小题不选、错误，均不给分)1 Many ________ (动物) depend on plants for food.2 What do we call the day after today?A. YesterdayB. TodayC. TomorrowD. Next week答案:C3 Recognizing the signs of a healthy plant can lead to better ______ practices. (识别健康植物的迹象可以促进更好的园艺实践。

)4 I have a special ________ that tells jokes.5 The ______ (气候) affects what plants can grow in an area.6 He is a great ___. (singer)7 I like to ___ (color) in my coloring book.8 My favorite animal is a ______ (兔子) because they are adorable.9 The __________ was so cold that I had to wear a hat. (天气)10 A ______ is a small, furry animal.11 A _______ is a tool for measuring the speed of a falling object.12 A chemical change alters the chemical ______.13 My favorite holiday is ________.14 What do we call the process of plants converting sunlight into food?A. RespirationB. PhotosynthesisC. TranspirationD. Germination答案: B. Photosynthesis15 I enjoy ______ (与朋友一起) learning new things.16 What is the name of the famous American holiday celebrated on the last Thursday in November?A. ThanksgivingB. ChristmasC. EasterD. Independence Day答案：A17 What is 3 + 5?A. 6B. 7C. 8D. 918 The invention of the computer has changed modern _____.19 We go _____ (shopping) on Saturdays.20 My favorite thing to do during summer is ______.21 The _______ (老虎) has sharp claws.22 The ________ (星球) we live on is called Earth.23 I love to decorate my ______ (房间) with posters and photos. It reflects my personality and interests.24 Which animal lives in the ocean?A. LionB. SharkC. ElephantD. Tiger答案: B25 The __________ is an important river in India. (恒河)26 The Moon has a gravitational effect on the Earth's ______.27 Which sport uses a bat?A. SoccerB. BaseballC. TennisD. Golf28 I love to play _______ (棋) with my family.29 The state of matter that has a definite volume but no definite shape is ______.30 What do you call the outer layer of the Earth?A. MantleB. CrustC. CoreD. Lithosphere答案:B31 The __________ (自由女神像) was a gift from France to the United States.32 , I feel _______ (情感) when things don’t go as planned. I remind myself to stay _______ (形容词). Sometime33 The butterfly is _____ on the flower. (resting)34 A __________ is a popular location for family vacations.35 Comets originate from the Oort ______.36 __________ are important for environmental protection.37 What do you call a person who makes furniture?A. CarpenterB. BlacksmithC. BuilderD. Mechanic答案: A38 The bicycle is ___ (new/old).39 What do you call the currency used in Europe?A. DollarB. EuroC. PoundD. Yen40 The _______ of an object is how much space it takes up.41 I have a ______ for school. (schedule)42 I found a ______ under the tree.43 The stars we see at night are very ______.44 What is the main ingredient in pizza?A. BreadB. CheeseC. Tomato SauceD. All of the above答案: D45 What do we call a tool used to drive nails?A. HammerB. ScrewdriverC. WrenchD. Pliers46 What is the capital of Maldives?a. Maléb. Addu Cityc. Fuvahmulahd. Kulhudhuffushi答案:a47 My dog loves to chase _________ (球).48 What do we call the large body of saltwater?A. RiverB. OceanC. LakeD. Pond答案:B49 He plays the ______ very well. (guitar)50 What do you call a young lion?A. CubB. KitC. CalfD. Pup51 The _____ (mango) is ripe.52 What do we use to write?A. SpoonB. PencilC. PlateD. Cup53 The sun is ________ in the sky.54 Which of these is a reptile?A. FrogB. LizardC. EagleD. Whale55 The __________ (文化交流) enriches societies.56 How many letters are in the English alphabet?A. 24B. 25C. 26D. 2757 What is the name of the famous American author known for "The Kite Runner"?A. Khaled HosseiniB. Mohsin HamidC. Salman RushdieD. Jhumpa Lahiri答案：A58 A catalyst is used to increase the rate of a ______.59 A _______ can be used to measure the speed of light.60 ________ (植物生态保护) is beneficial for ecosystems.61 The crab scuttles across the _______ (沙子).62 A __________ is a mixture of two or more solids.63 What is the capital of Slovakia?A. BratislavaB. KošiceC. PrešovD. Nitra64 What animal is known for having a long neck?A. ElephantB. GiraffeC. ZebraD. Lion65 The __________ (历史的工具) enable better analysis.66 The fish swims in the _______ (鱼在_______中游).67 My favorite fruit is ________ (apple).68 The dog is _______ (sitting) by the door.69 I love to play ________ on the weekends.70 What do we call the process of taking in food and nutrients?A. DigestionB. IngestionC. AbsorptionD. Metabolism答案:B71 In a neutral solution, the pH is equal to ________.72 A ____ is a friendly pet that often wags its tail.73 The garden has a variety of ______ (植物).74 I want to ___ an astronaut. (become)75 The _____ (street/road) is busy.76 I enjoy doing ______ (运动) because it keeps me fit and active. My favorite is ______ (游泳).77 The capital of Spain is __________.78 The chemical formula for copper(II) sulfate is _______.79 I enjoy __________ (动词) with my __________ (玩具名) every summer.80 What do you call the act of removing trees from a forest?A. PlantingB. LoggingC. HarvestingD. Clearing81 How do you spell the number 3?A. ThreB. ThreeC. ThrreD. Tre答案: B82 A _______ is a reaction that produces a bright color.83 What do you call a baby dog?A. KittenB. PuppyC. Calf84 What do we call the process of converting a solid directly to gas?A. MeltingB. FreezingC. SublimationD. Evaporation答案:C85 I want to _____ (visit) the aquarium.86 A geological ______ is a period of time marked by significant changes.87 I like to play ______ in the playground.88 What do you call a place where books are kept?A. LibraryB. SchoolC. StoreD. House89 The __________ is a famous mountain range in South America.90 What is the capital of Cyprus?a. Nicosiab. Larnacac. Paphosd. Famagusta答案:a91 The antelope is quick and agile, able to outrun many ____.92 What is the color of a typical strawberry?A. RedC. YellowD. Blue答案:A93 The ________ (生长环境) impacts species.94 The polarity of water makes it an excellent _______.95 What do you call a young alligator?A. HatchlingB. PupC. CalfD. Kit96 The ________ (栽培) of herbs is popular.97 The Earth's layers are composed of different ______ materials.98 My family often has fun by calling each other funny names like . (我的家人经常通过称呼对方有趣的名字，比如，来增添乐趣。

洛阳2024年03版小学4年级英语第4单元暑期作业(含答案)考试时间：100分钟（总分:100）A卷考试人：_________题号一二三四五总分得分一、综合题(共计100题)1、填空题：I can ______ (清晰地表达) my thoughts.2、填空题：My sister loves __________ (动物).3、填空题：I love to swim in the ______.4、Which season is after summer?A. WinterB. SpringC. Fall (Autumn)D. Summer5、听力题：The kids are ___ in the snow. (playing)6、听力题：A __________ is a mixture of liquids that can be separated.7、听力题：The chemical symbol for zirconium is ______.8、What is the main ingredient in salad?A. MeatB. VegetablesC. RiceD. Cheese答案:B9、What is the name of the famous ship that sank in 1912?a. Titanicb. Lusitaniac. Britannicd. Queen Mary答案:a10、听力题：The sun is ________ in the sky.11、听力题：It is _____ (raining) outside.12、填空题：My friend loves to __________ (探索) new ideas.13、听力题：The _______ helps maintain the ecosystem.14、听力题：My cousin is a ______. She loves to engage in activism.15、填空题：I love my _____ (玩具飞机).16、选择题：Which of these is a primary color?A. GreenB. PurpleC. RedD. Orange17、听力题：The bird is in the ___. (cage)18、填空题：The signing of the Magna Carta happened in _____.19、听力题：A chemical change produces new ______.20、填空题：We need to _______ (尊重) wildlife.21、听力题：My cousin is a ______. She loves to play tennis.A ______ is a special type of ant.23、填空题：The ________ was an important document in American history.24、选择题：What do we call the study of living things?A. BiologyB. ChemistryC. PhysicsD. Geography25、听力题：Chemical kinetics studies the rates at which _____ occur.26、填空题：My _______ (猫) purrs when happy.27、填空题：The hen lays _______ (蛋) every day.28、听力题：The ______ teaches us about health and fitness.29、听力题：A ______ is a bird that swims well.30、填空题：The rainbow trout is a popular ______ (鱼) for fishing.31、What do you call a baby sheep?A. CalfB. KidC. LambD. Foal答案:C32、What do you call a baby parrot?A. ChickB. PupC. KitD. Calf33、听力题：The chemical formula for calcium chloride is ______.My sister is a ______. She loves to perform.35、What is 100 58?A. 42B. 48C. 40D. 52答案:A36、填空题：The ancient Egyptians used ______ (草纸) for writing.37、填空题：The turtle is very ______.38、听力题：The _____ (大楼) is tall and shiny.39、填空题：The zebra has distinct _______ (条纹).40、填空题：My favorite toy is a ________ that I can ride.41、填空题：I enjoy making __________ in the snow with my friends. (雪球)42、What is the name of the famous clock tower in London?A. Big BenB. Eiffel TowerC. Leaning Tower of PisaD. Burj Khalifa答案: A43、填空题：My teacher often says, "_______" (名言). 这让我 _______ (形容词).44、填空题：The ________ was a significant event in the history of the United States.45、填空题：My pet rabbit loves to eat fresh ______ (胡萝卜).A nova is a sudden increase in the brightness of a ______.47、What is the name of the famous mountain range in South America?A. RockiesB. AndesC. AlpsD. Himalayas答案:B48、听力题：The flowers are ______ in the garden. (blooming)49、听力题：I need to _____ (finish/start) my homework.50、听力题：She enjoys ________.51、What is the currency used in the United States?A. EuroB. YenC. DollarD. Pound52、What is the name of the famous garden in Paris?A. Central ParkB. Jardin des TuileriesC. Kew GardensD. Brooklyn Botanic Garden答案：B53、填空题：A ______ (花园) can be a peaceful place.54、填空题：My brother is learning to __________. (游泳)55、What is the name of the famous explorer who discovered America?A. Marco PoloB. Christopher ColumbusC. Ferdinand MagellanD. Vasco da Gama答案:BThe __________ (经济发展) impacts everyday life.57、填空题：The __________ (历史的共同体) foster collaboration.58、选择题：What do you call the currency used in Europe?A. DollarB. EuroC. PoundD. Yen59、What do you call the place where you watch movies?A. TheaterB. MuseumC. LibraryD. Park60、听力题：A __________ is formed by the accumulation of sediments over time.61、听力题：I like to _____ my friends at school. (see)62、Which word means the opposite of "happy"?A. JoyfulB. SadC. ExcitedD. Angry答案: B63、填空题：I have a ________ (玩具名称) that sings songs.64、What is the capital city of Papua New Guinea?A. Port MoresbyB. LaeC. Mount HagenD. Madang65、听力题：The capital of Thailand is ________.66、听力题：The chocolate is ___ (sweet/sour).What is the name of the famous painting by Vincent van Gogh?A. The Starry NightB. The Girl with a Pearl EarringC. The Last SupperD. The Kiss68、填空题：The scientist develops new _____ (技术).69、填空题：The __________ is a popular destination for hiking and camping. (国家公园)70、听力题：__________ are compounds that contain carbon.71、填空题：The _______ (蝴蝶) flaps its wings.72、听力题：The __________ is full of stars.73、Which holiday celebrates the New Year?A. ChristmasB. ThanksgivingC. New Year's DayD. Halloween答案: C74、填空题：When I get home from school, I do my ______ (作业) before I play. It helps me stay organized.75、填空题：In _____ (新加坡), there are many skyscrapers.76、听力题：Chemical reactions can produce light, sound, or _____.77、选择题：What is the capital of Georgia?A. TbilisiB. BatumiC. KutaisiD. Rustavi78、What is the name of the famous war fought between the North and South in the United States?A. World War IB. World War IIC. Civil WarD. Revolutionary War答案: C79、What is 20 divided by 4?A. 5B. 6C. 7D. 8答案:A80、What is the opposite of "hot"?A. WarmB. ColdC. CoolD. Dry答案: B81、填空题：A horse can run very ______ (快).82、听力题：Astronomers use radio waves to study _______ objects.83、What is the main ingredient in pizza?A. BreadB. CheeseC. SauceD. Toppings答案: A84、听力题：The chemical formula for zinc chloride is _____.85、What do we call the process of capturing sunlight to produce energy?A. Solar EnergyB. Wind EnergyC. Hydroelectric EnergyD. Biomass Energy答案：AI like to help my dad ________ (修理) things.87、What do you call a group of stars?A. PlanetB. GalaxyC. UniverseD. Solar system答案:B88、What is the name of the famous painting by Vincent van Gogh?A. SunflowersB. The Starry NightC. The Last SupperD. The Scream89、What is the color of the sky on a clear day?A. GreenB. BlueC. RedD. Yellow90、听力题：The ice cream is _____ melting. (slowly)91、What do you call the person who writes books?A. PainterB. AuthorC. SculptorD. Musician答案:B92、听力题：The __________ is a critical area for studying biodiversity.93、填空题：My aunt gives me good ____.94、填空题：The __________ (历史人物) often face challenges.95、听力题：A chemical property that indicates the tendency of a substance to oxidize is called its _____ potential.The _____ (小鸡) chirps happily as it explores the farm.小鸡在农场探索时愉快地鸣叫。

小学上册英语第3单元真题(含答案)考试时间：100分钟（总分:140）A卷一、综合题(共计100题共100分)1. 听力题：The ____ is a small rodent that likes to nibble on seeds.2. 填空题：I believe that laughter is the best _______ (良药). It makes every situation better.3. 选择题：How many sides does a hexagon have?A. 4B. 5C. 6D. 7答案:C4. 填空题：My grandmother has a __________ flower garden. (美丽的)5. 选择题：Which planet is known as the "Blue Planet"?A. EarthB. MarsC. VenusD. Neptune6. 听力题：The chemical symbol for molybdenum is __________.7. 听力题：The chemical symbol for neon is ____.8. 选择题：What do we call the part of the plant that absorbs water and nutrients?A. StemB. LeafC. RootD. Flower答案: C9. 听力题：The chemical formula for sulfur trioxide is _____.10. 填空题：The __________ (社会参与) strengthens communities.11. 填空题：The frog's skin is _______ (湿润).12. 填空题：I watched a _______ (小黄鹂) build its nest in the tree.13. 选择题：What is the capital of Bangladesh?A. DhakaB. ChittagongC. KhulnaD. Sylhet答案:A. Dhaka14. 填空题：I have a ________ (魔方) that I try to solve every day.15. ts need _____ (湿润的) conditions to thrive. 填空题：Some pla16. 听力题：The capital of Albania is __________.17. 选择题：What is the name of the famous wizard in "Harry Potter"?A. DumbledoreB. VoldemortC. SnapeD. Harry Potter18. 听力题：Some _______ are edible and used in cooking.19. 选择题：What is the name of the famous scientist known for his work on radioactivity?A. Marie CurieB. Albert EinsteinC. Louis PasteurD. Isaac Newton答案: A20. 选择题：What do we call the movement of the Earth around the sun?A. RotationB. RevolutionC. OrbitD. Spin答案:B21. 填空题：The playground is _______ during recess.22. 填空题：My sister loves to create __________ (艺术品) at home.23. 选择题：What is the first letter of the alphabet?A. AB. BC. CD. D答案:A24. 填空题：The ________ was a major turning point in World War I.25. 填空题：The _____ (自然环境) is important for biodiversity.26. 听力题：The process of crystallization involves forming ______ from a solution.27. 填空题：I have a toy _______ that dances and sings my favorite songs.28. 选择题：What do we call a scientist who studies the Earth?A. GeologistB. MeteorologistC. ZoologistD. Biologist答案: A29. 选择题：What is the capital of Argentina?A. Buenos AiresB. CórdobaC. MendozaD. Rosario30. 选择题：Which of these is a type of measurement?A. LengthB. ColorC. ShapeD. Size31. 选择题：Which fruit is red and often mistaken for a vegetable?A. AppleB. TomatoC. StrawberryD. Cherry答案:B32. 听力题：The ______ is a layer of rock that lies directly beneath the Earth's surface.33. 听力题：A __________ is a group of islands.34. 听力题：He likes to __________ football after school.35. 选择题：How many fingers are on one hand?A. FourB. FiveC. SixD. Seven答案:B36. 填空题：The first successful face reconstruction was performed in ________.37. 选择题：Which word means "happy"?A. SadB. JoyfulC. AngryD. Tired答案: B38. 听力题：The frog is _____ (jumping/sitting) on the lily pad.39. 选择题：What do we call the study of how people interact with each other?A. SociologyB. PsychologyC. AnthropologyD. Economics答案: A40. 填空题：My ________ (玩具名称) is a fun way to learn about cultures.41. 听力题：A ______ is a geological feature that rises sharply.42. 选择题：What do you call the person who directs a movie?A. ProducerB. DirectorC. ActorD. Writer答案:B43. 听力题：A hypothesis is an educated _____ about a scientific question.44. 选择题：What is the name of the famous river that runs through Egypt?A. NileB. AmazonC. YangtzeD. Mississippi答案：A45. 选择题：What do you call the person who fixes cars?B. TeacherC. MechanicD. Chef答案:C46. 填空题：The ______ (触感) of leaves can vary widely.47. 填空题：The ancient Greeks practiced _____ as a form of government.48. 听力题：Chemical reactions often produce energy in the form of _____ or light.49. 填空题：The _____ (金色的鱼) swims gracefully in its aquarium. 金色的鱼在它的水族箱中优雅地游动。

小学上册英语第三单元真题(含答案)英语试题一、综合题(本题有100小题，每小题1分，共100分.每小题不选、错误，均不给分)1.greenhouse effect) is caused by gases trapping heat. The ____2.The capital of Cyprus is __________.3.The capital of Peru is ________.4.My brother likes to play ____ (basketball) with his friends.5.What is the capital of Russia?A. MoscowB. St. PetersburgC. KievD. Minsk答案:a6.What do you call a person who studies the ocean?A. Marine biologistB. OceanographerC. GeologistD. Biologist答案: B7.The chemical symbol for zirconium is _______.8.The ______ (彩色的) flowers attract attention.9. A __________ is a large region with a distinct ecosystem.10.Some _______ have unique shapes.11.Dark matter makes up a large part of the universe but cannot be ______ directly.12.What is the name of the famous British landmark that is a clock tower?A. Big BenB. Tower BridgeC. London EyeD. Buckingham Palace答案: A13.The dog is barking at the ______.14.My dad is always there to give me __________ (建议).15.My cousin is a ______. She enjoys playing board games.16.What is the capital of Tuvalu?A. FunafutiB. NukufetauC. NiutaoD. Nanumaga答案: A17.The cheetah can run very ______.18. A lunar eclipse occurs when the Earth blocks sunlight from reaching the ______.19.My brother is a ______. He enjoys sports.20.Fish breathe ______ through their gills.21.The ______ (狐狸) is very clever.22.I enjoy _____ (reading/watching) movies.23.The __________ (历史的连贯性) is key to comprehension.24.My friends and I like to organize _________ (玩具展览) at school.25.Read and match.(看图连线。