First-Principles Study of the__ Interaction Between Graphene

first-principles study on the electronic structureA first-principles study on the electronic structure is a computational approach that aims to understand the behavior of electrons in a material or system based solely on fundamental physical laws and principles, without using any empirical input or assumptions.This study typically employs density functional theory (DFT) as the main theoretical framework. DFT solves the many-electron Schrödinger equation by approximating the unknown electron density rather than the wavefunction itself. Within this framework, the electronic structure is described by the electronic band structure, which provides information about the allowed energy levels (bands) for electrons in a material.In a first-principles study, the electronic structure is calculated by minimizing the total energy of the system with respect to the electron density. This involves solving the Kohn-Sham equations, which are derived from DFT and provide a self-consistent solution for the electronic structure. The resulting electronic band structure can then be used to understand various properties of the material, such as its electrical conductivity, optical properties, and magnetic behavior.To perform a first-principles study, one needs to determine the initial electron density, often done using pseudopotentials to represent the interaction between the electrons and atomic nuclei. The calculations then proceed iteratively, adjusting the electron density until self-consistency is achieved.First-principles studies on the electronic structure can provide valuable insights into the behavior of electrons in various materials and systems. They are widely used in condensed matter physics, materials science, and chemistry to investigate the properties of materials, design new materials with specific electronic properties, and understand the underlying principles that govern electron behavior.。

蚌埠2024年05版小学4年级下册英语第四单元测验卷(有答案)考试时间：90分钟（总分:100）B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 is the capital of Latvia?A. VilniusB. RigaC. TallinnD. Helsinki答案:B2、听力题：The first President of the United States was _______ Washington.3、听力题：A reaction that occurs at high temperatures is called a ______ reaction.4、填空题：The first successful vaccine was developed by _______. (詹纳)5、What is the name of the famous ancient structure in Egypt?A. StonehengeB. Pyramid of GizaC. ColosseumD. Great Wall答案:B6、填空题：The __________ (气候变化) affects everyone on Earth.7、听力题：The ______ creates beautiful art.8、What is the capital of New Zealand?a. Aucklandb. Wellingtonc. Christchurchd. Hamilton答案:b9、听力题：My brother is a great ________.10、听力题：The _____ (car/bike) is red.11、听力题：The chemical symbol for lead is _____.12、填空题：I can create memories with my ________ (玩具).13、What do we call a person who studies plants?A. BiologistB. BotanistC. ZoologistD. Ecologist14、填空题：My sister loves ________ (画画).15、听力题：The first President of the United States was inaugurated in _______.16、听力题：Chemical reactions can be exothermic or _____ (endothermic).17、What is the term for a period of ten years?A. CenturyB. DecadeC. MillenniumD. Era答案: B18、What is the capital of France?A. LondonB. BerlinC. ParisD. Rome答案: CI see a __ in the garden. (flower)20、What is the name of the famous American holiday celebrated on the fourth Thursday of November?A. ChristmasB. ThanksgivingC. New Year's DayD. Independence Day答案:B21、填空题：我的朋友喜欢 _______ (活动). 她觉得这很 _______ (形容词)22、填空题：I like to ______ (关心) the environment.23、What do we call a young kitten?A. PupB. CubC. KittenD. Joey24、填空题：The _______ (青蛙) often sits on lily pads.25、听力题：An animal that changes colors is a ______.26、听力题：The capital of Germany is __________.27、填空题：The _____ (蜜蜂) is busy collecting pollen.28、填空题：A snail carries its _______ on its back.29、What do you need to ride a bike?A. HelmetB. ShoesC. SunglassesD. Gloves答案:AThe capital of Libya is _____.31、听力题：They are ___ (happy/sad) about the trip.32、填空题：I want to _______ (旅行) around the world.33、填空题：Do you have a pet _____ (鸟)?34、选择题：What do you call the large body of ice that moves slowly over land?A. GlacierB. IcebergC. SnowfieldD. Permafrost35、What do we call the process of converting a solid into a gas?A. SublimationB. EvaporationC. CondensationD. Freezing答案:A36、听力题：A __________ is formed when a river meets the sea.37、听力题：The capital of Armenia is _______.38、What is the name of the famous ancient city in Italy?A. PompeiiB. RomeC. VeniceD. Florence答案:A39、填空题：I want to _______ (学习) new languages.40、听力题：The garden is ___. (green)My friend is my best _______ who listens to my thoughts and dreams.42、What fruit is yellow and curved?A. AppleB. OrangeC. BananaD. Grape答案: C43、Which animal is famous for its black and white stripes?A. LionB. TigerC. ZebraD. Leopard答案:C44、选择题：What is the opposite of empty?A. FullB. LightC. HeavyD. Small45、How do you say "water" in Spanish?A. AguaB. EauC. WasserD. Voda46、听力题：The chemical formula for sulfur trioxide is _____.47、填空题：_____ (土地使用) affects local ecosystems.48、填空题：Feel free to use or modify these sentences for your needs!49、听力题：The _______ of light can be tested by passing it through different filters.50、填空题：A frog can leap very ______ (远) to catch insects.51、How do you say "happy" in Spanish?A. FelizB. TristeC. EnojadoD. Contento52、听力题：She is _____ (studying) for her test.53、听力题：A _______ is a device used to measure the concentration of a solution.54、听力题：The game was _____ (funny/fun).55、 built their empire in the _____ Mountains. 填空题：The Indi56、选择题：What do you call a baby dog?A. KittenB. PuppyC. CalfD. Chick57、听力题：Friction is a force that opposes the motion of ______.58、选择题：What do you call a story that teaches a lesson?A. NovelB. FableC. BiographyD. Myth59、填空题：The __________ was a series of wars fought in the Middle Ages. (十字军东征)60、What is the term for a baby llama?A. CriaB. CalfC. KidD. Foal答案:AThe ________ (challenge) helps us grow.62、填空题：The __________ (历史的开拓) reveals potential.63、填空题：We visit the ______ (科技博物馆) to learn about inventions.64、Which instrument is used to measure temperature?A. BarometerB. ThermometerC. StopwatchD. Ruler答案: B65、What is the capital of Portugal?A. LisbonB. PortoC. MadridD. Barcelona答案:A66、听力题：The ancient Romans celebrated games in honor of their _______.67、填空题：The __________ (水利工程) help manage resources.68、填空题：My favorite animal is a _______ (我最喜欢的动物是_______).69、听力题：A _______ can be used to investigate the properties of light.70、听力题：A solution that has a low concentration of solute is called _______.71、填空题：The _____ (小鸟) builds nests to raise its young.72、填空题：Did you ever see a _______ (小马戏团) perform tricks?The __________ (历史的内容) engages different audiences.74、填空题：The _______ (鲸鱼) is a giant sea animal.75、What do you call the process of cleaning the surface of a vegetable?A. WashingB. PeelingC. ScrubbingD. Slicing76、Which part of the plant absorbs water?A. LeafB. StemC. RootsD. Flower答案: C. Roots77、填空题：I find ________ (科学实验) very exciting.78、填空题：A _______ (鸟) sings sweet melodies.79、听力题：The cat is ___ (resting) on the sofa.80、What is the capital of Japan?A. BeijingB. SeoulC. TokyoD. Bangkok答案:C81、选择题：What do you call the tallest tree in the world?A. SequoiaB. OakC. PineD. Birch82、听力题：His favorite book is about a ________.I want to go ___ the zoo. (to)84、填空题：I have a toy ________ that can fly high.85、听力题：The bear catches _______ in the river.86、What is the capital of the Netherlands?A. AmsterdamB. RotterdamC. UtrechtD. The Hague87、听力题：In a neutralization reaction, an acid and a base react to form _____ and water.88、听力题：The process of separating components of a mixture based on their boiling points is_______.89、填空题：The ________ (气候带) varies across different regions.90、听力题：The ______ helps plants grow tall.91、填空题：She is _______ (喜欢) to draw.92、填空题：Certain plants are valuable for their ______ properties, contributing to local economies. (某些植物因其药用特性而有价值，为当地经济做出贡献。

海口2024年01版小学6年级下册英语第三单元测验试卷考试时间：80分钟（总分:100）B卷考试人：_________题号一二三四五总分得分一、综合题(共计100题)1、听力题：A __________ is a chemical reaction that produces gas.2、听力题：The capital of the United States is _______.3、听力题：Saturn's rings are made of ice and small ______.4、What is the opposite of 'hot'?A. WarmB. ColdC. CoolD. Heat答案:B5、听力题：I found a _____ (penny/dime) on the ground.6、听力题：The cat is very ___. (playful)7、填空题：I like to _______ my bike.8、填空题：I saw a butterfly in the ______.9、听力题：A mixture that contains two or more components is called a _______ mixture.What do you call a group of wolves?A. PackB. FlockC. HerdD. School11、How many sides does a square have?A. ThreeB. FourC. FiveD. Six12、填空题：My guinea pig loves to eat _______ (新鲜的) vegetables.13、听力题：I see a ______ in the sky. (plane)14、填空题：My pet dog loves to play ______.15、听力题：A _______ is a substance that forms when a reaction occurs.16、听力题：Black holes cannot be seen directly because of their ______.17、填空题：I can pretend to be a __________ (职业) with my __________ (玩具名).18、听力题：I want to ___ (learn/know) more about art.19、填空题：The _____ (大雁) honks loudly while flying.20、How many colors are in a rainbow?A. FiveB. SixC. SevenD. Eight答案：C21、听力题：A reaction that produces carbon dioxide and water is known as ______ combustion.I can ______ (灵活应变) to new challenges.23、听力题：I love to ________ (travel) with my family.24、填空题：He is reading a _______ (故事书).25、听力题：They are _____ (happy) together.26、Which animal is known for its ability to mimic sounds?A. ParrotB. EagleC. OwlD. Sparrow答案：A27、填空题：The __________ is a major river that flows through Nigeria. (尼日尔河)28、听力题：Some _______ can survive in extreme conditions.29、What do we call the person who teaches students?A. DoctorB. TeacherC. FarmerD. Baker答案:B30、听力题：The Ring of Fire is known for its ______ activity.31、填空题：A _______ (金鱼) can be orange.32、填空题：The ________ (温度) affects plant growth.33、听力题：A reduction reaction involves the gain of ______.My cousin is very __________ (聪明的) in math.35、听力题：I see a _____ (rainbow) in the sky.36、听力题：Many _______ bloom in spring.37、听力题：The atomic mass of an element is the average mass of its _______.38、填空题：I love to learn about plants and how they ________ (生长) in different environments.39、What is the name of the famous ancient structure in Egypt?A. ColosseumB. PyramidsC. ParthenonD. Stonehenge答案: B40、填空题：My grandma loves to __________ (照顾) her plants.41、What is the value of 8 × 8?A. 54B. 56C. 64D. 72答案:C42、填空题：The _____ (carnation) has a sweet scent.43、What is the capital of Brunei?A. Bandar Seri BegawanB. Kuala BelaitC. SeriaD. Tutong答案: A44、填空题：I like to play with my ________ in the park.The chemical formula for manganese oxide is _______.46、What is the name of the largest type of galaxy?A. Irregular GalaxyB. Elliptical GalaxyC. Spiral GalaxyD. Lenticular Galaxy47、What do bees make?A. MilkB. HoneyC. BreadD. Butter答案:B48、填空题：The weather feels __________; it might rain soon. (潮湿的)49、听力题：The _____ is where all weather occurs on Earth.50、听力题：The chemical symbol for zirconium is ______.51、填空题：The teacher, ______ (老师), makes learning fun and exciting.52、听力题：She has a ___ of shoes. (pair)53、填空题：The __________ (历史的教训) can help prevent future mistakes.54、听力题：A chemical reaction that releases heat is called an ________ reaction.55、What is the largest bird in the world?A. EagleB. PenguinC. OstrichD. Flamingo答案: C56、听力题：A solution is a mixture where one substance is dissolved in ________.I enjoy _______ (参加)科学实验.58、ers open up at _____ (早晨). 填空题：Some flo59、填空题：The ancient Romans celebrated games in honor of the god ______ (朱庇特).60、填空题：I like to watch ______ on rainy days.61、Which of these is a type of fish?A. SalmonB. ChickenC. BeefD. Pork62、填空题：The discovery of ________ has had far-reaching implications for society.63、听力题：A ______ is a large area of land that rises steeply.64、填空题：My friend loves to __________ (写作) stories.65、What do you wear on your head?A. ShoesB. HatC. ShirtD. Pants66、What do you call a person who studies history?A. HistorianB. ScientistC. MathematicianD. Geographer答案: A67、听力题：We go to school ___ (by/with) bus.68、填空题：We have a ______ (快乐的) gathering for Thanksgiving.I have a ______ for math. (test)70、What is the main language spoken in the United States?A. SpanishB. FrenchC. GermanD. English71、What do you call the person who grows crops?A. FarmerB. BakerC. TeacherD. Driver72、填空题：I have a _____ (音乐盒) that plays a nice tune. 我有一个播放美妙旋律的音乐盒。

小学下册英语第一单元期中试卷考试时间：80分钟（总分:140）B卷考试人：_________题号一二三四五总分得分一、综合题(共计100题共100分)1. 听力题：A _______ is a type of reaction that absorbs energy.2. 填空题：Gold is a _______ metal that does not tarnish easily. (贵重)3. 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 pla4. 选择题：What do we wear on our feet?A. SocksB. GlovesC. ShoesD. Hat5. 填空题：The first successful vaccine for rabies was developed by ______ (巴斯德).6. 选择题：Which instrument is used to measure temperature?A. BarometerB. ThermometerC. RulerD. Clock答案: B7. 听力题：The __________ is a large area of sand.8. 听力题：In a ______ change, the substance's identity does not change.The ______ (阳光充足的)地方是最适合植物生长的。

10. 听力题：The clock shows ______ o'clock. (three)11. 填空题：The _____ (植物分类学) helps identify and classify species.12. 选择题：What do we call the part of the brain that controls thinking?A. CerebellumB. CerebrumC. BrainstemD. Cortex答案：B13. 填空题：My favorite sport is ______ (乒乓球).14. 选择题：What is the name of the phenomenon where light is bent by gravity?A. Gravitational LensingB. Light BendingC. Cosmic CurvatureD. Space-Time Distortion15. 填空题：The __________ (滑雪) resort is popular in winter.16. 填空题：Antarctica is known for its ________ (南极以其________) and extreme cold.17. 填空题：The _______ (The Opium Wars) were conflicts between China and Britain.18. ta Stone helped scholars understand ______ (古埃及) writing. 填空题：The Rose19. 听力题：A ______ has a symbiotic relationship with flowers.20. 填空题：I enjoy baking cakes with my mom for special ________ (庆祝活动).The ancient Greeks were known for their ________ sculptures.22. 填空题：A _____ (城市绿化) initiative can improve living conditions.23. 听力题：A _______ is a chemical process involving enzymes.24. 听力题：The _____ (tree/house) is tall.25. 选择题：What is the term for the area around a star where planets can potentially support life?A. Goldilocks ZoneB. Habitable ZoneC. Safe ZoneD. Life Zone26. 填空题：My sister is skilled at ____.27. 听力题：The chemical symbol for selenium is ______.28. 选择题：What is the name of the famous mouse created by Walt Disney?A. Donald DuckB. GoofyC. Mickey MouseD. Pluto29. 选择题：What is the name of the fairy tale character who lost her glass slipper?A. Snow WhiteB. CinderellaC. RapunzelD. Sleeping Beauty答案:B30. 听力题：She wants to be a ________.31. 听力题：The ______ is often seen in parks.My brother often plays _______ (名词) with his friends. 他觉得这个很 _______ (形容词).33. 选择题：How many continents are there?A. 5B. 6C. 7D. 834. 填空题：The _______ (猪) snorts loudly.35. 听力题：The _____ (游泳) is refreshing.36. 填空题：The __________ (种植计划) is essential for successful gardening.37. 听力题：A ______ is a type of fish that can change color.38. 填空题：The _______ (虎) is a powerful hunter.39. 填空题：My favorite subject is __________. (数学)40. 听力题：The _____ (kite) is flying high.41. 填空题：The flamingo has long _______ (腿).42. 听力题：We have ______ (math) class at o'clock.43. 听力题：She is wearing a ________ dress.44. 听力题：The book is on the ___ (shelf/table).The chemical symbol for iodine is ______.46. 听力题：I love to drink ___. (chocolate milk)47. 填空题：I enjoy visiting the ________ (科技馆) to learn new things.48. 填空题：A _____ (stream) nourishes the surrounding plants.49. 填空题：The flowers in the garden are very _______ and bright.50. 填空题：My favorite time of year is ______.51. 填空题：A kitten purrs when it is ______ (开心).52. 听力题：A _______ measures the amount of energy consumed.53. 填空题：A _____ (蛇) often hides in tall grass.54. 选择题：What do you call a person who plays a string instrument?A. ViolinistB. CellistC. BassistD. All of the above答案:D55. 听力题：The ice cream is ______ on a hot day. (refreshing)56. 选择题：What is the main purpose of a compass?A. To tell timeB. To find directionC. To measure distanceD. To calculate weight答案:BShe is _____ (reading/writing) a story.58. 填空题：The _____ (植物多样性) is crucial for ecosystem resilience.59. 填空题：The ______ (青蛙) can leap great distances with its strong legs.60. 填空题：The ________ (电力供应) is important for development.61. 填空题：The ______ (生长速度) can be affected by temperature.62. 选择题：What is the opposite of light?A. HeavyB. DarkC. BrightD. Soft63. 填空题：I like _______ (玩游戏) on my computer.64. 填空题：The _____ (温室) allows for year-round gardening.65. 选择题：What do we call the study of the Earth's physical structure?A. GeographyB. GeologyC. BiologyD. Meteorology答案:B66. 填空题：I enjoy playing _________ (视频游戏) with my friends online.67. 选择题：What do we call the act of practicing a skill?A. TrainingB. RehearsingC. CoachingD. Drilling答案:A68. 听力题：The ____ is known for its ability to leap great distances.69. 选择题：What is the name of the famous wizarding school in Harry Potter?A. HogwartsB. DurmstrangC. BeauxbatonsD. Ilvermorny70. 选择题：What is the opposite of "big"?A. LargeB. SmallC. HugeD. Giant答案: B71. 填空题：I planted a _____ (树) in my yard.72. 填空题：My favorite subject is _______ (英语).73. 填空题：A ____(community coalition) unites diverse stakeholders.74. 填空题：My favorite food is _______.75. 听力题：The reaction of acids with metals is often used to produce ______.76. 填空题：My dad loves __________ (参加比赛).77. 填空题：I can combine different ________ (玩具类型) to create something new.78. 填空题：The frog's powerful legs allow it to leap great ______ (距离).The man is very ________.80. 听力题：The _______ of light can create various effects in technology.81. 选择题：How many sides does a triangle have?A. TwoB. ThreeC. FourD. Five82. 听力题：The symbol for osmium is _______.83. 听力题：A _______ is a physical change that involves a change in state.84. 填空题：I like to color with my _____ (彩色铅笔).85. 填空题：My friend is a great __________ (听众).86. 选择题：What do we call the part of the plant that grows above the ground?A. RootB. StemC. LeafD. Flower答案: B87. 填空题：A gecko can climb ______ (墙).88. 填空题：My family loves to __________ on weekends. (爬山)89. 选择题：What color is the sky on a clear day?A. GreenB. BlueC. YellowD. Red答案:BWhich instrument is played with a bow?A. TrumpetB. FluteC. ViolinD. Drums91. 听力题：The chemical formula for copper sulfate is _______.92. 听力题：The ______ helps us understand the world.93. 选择题：What is the main ingredient in pudding?A. WaterB. MilkC. SugarD. Gelatin答案:B94. 听力题：A __________ is a reaction that produces solid precipitates.95. 听力题：The wind is very ___ (strong/light).96. 填空题：The ancient Romans established ________ to govern their territories.97. 选择题：What is the capital of Panama?A. Panama CityB. ColonC. DavidD. Santiago答案:A98. 听力题：A __________ is a mixture that does not settle.99. 填空题：People often plant flowers for __________ (美观).100. 选择题：What do we call the smallest particle of an element?A. AtomB. MoleculeC. CompoundD. Ion。

大学语言学考试1-7章-试题和答案(总28页)--本页仅作为文档封面，使用时请直接删除即可----内页可以根据需求调整合适字体及大小--12maximal?onset?principle? states that when there is a choice as to where to place a consonant. it is put into the onset rather than the coda. . The correct syllabification of the word country should be第一章，填空1. The study of the meaning of lingustic words, phrases is called semantics.2. Displacement is a design feature of human language that enables speakers to talk about a wild range of things free from barriers caused by4. Morpheme is the smallest meaningful unit of language.5. If a linguistic study describes and analyzes the language people actually use, it is said to be descriptive.6. Chomsky defines“competence” as the ideal user's knowledge of the rules of his language.7. Language is a means of verbal communication. It is informative in that communicating by speaking or writing is a purposeful act.8. The link between a linguistic sign and its meaning is a matter of9. Language is distinguished from traffic lights in that the former has the designing feature of duality.10. In linguistics research, both quantity and quality approaches are preferred.判断：11. The writing system of a language is always a later invention used to record speech, thus there are still many languages in today's have no .... √12. According to Chomsky, the word “competence” is not limited to the ability ofan ideal native speaker to construct and recognize.×13. Duality and cultural transmission are two most important design features ofhuman language.×14. Chomsky's competence' and performance are similar in meaning to Saussure’s langue and parole.√15,An important difference between traditional grammarians and modern linguists in their study of language is that the former tended to over-emphasize the written form of language and encourage people to imitate the“best authors”for language usage √16. In modern linguistic studies, the written form of language is given more emphasis than the spoken form for a of reasons.√17. Modern linguistics is mainly diachronic.×chochronic共时的18. Langue and parole is the fundamental distinction discussed by Chomsky in his Aspects of the Theory ofdistinguished the linguistic competence of the speaker and the actual phenomena or data of linguistics as Parole and language. √20. According to Chomsky, the task of a linguist is to determine from the data of performance the underlying system of rules that has been √选择:1. As modern linguistics aims to describe and analyse the language people actually use, and not to lay down rules for correct linguistic behavior, it is said to be descriptive2. I can refer to Confucius even though he was dead 2000 years ago. This shows that language has the design feature of displacement.3.“Don’t end a sentence with a preposition.” this is an example of prescriptive rules.4.Which of the following is most referred to as a branch of t he study of meaning in5.The synchronic study of language takes a fixed instant as its point of observation.6. The branch of linguistics that studies how context influences the way speakers interpret sentences is called pragmatics.7. The fact that different languages have different words for the same object is good proof that human language is A?没照下图片arbitrary8.The descriptive of a language as it changes through time is a diachronic study.9.题目没照下来。

吉林2024年11版小学3年级英语第6单元真题试卷[有答案]考试时间：100分钟（总分:100）B卷考试人：_________题号一二三四五总分得分一、综合题(共计100题)1、听力题：I want to learn how to ______ (ski).2、Which fruit is red and often eaten in pies?A. BananaB. CherryC. GrapeD. Orange答案: B3、听力题：A _______ is a deep valley with steep sides.4、填空题：My dog loves to _______ (追逐) squirrels.5、填空题：We made a team with our toy ____. (玩具名称)6、填空题：The first university in the world was established in ________.7、选择题：What do we call the natural phenomenon where water changes from liquid to gas?A. EvaporationB. CondensationC. FreezingD. Melting8、填空题：A _____ (植物交流平台) can unite enthusiasts for collective action.9、What is the capital of Malaysia?A. Kuala LumpurB. PenangC. MalaccaD. Johor Bahru10、填空题：我的朋友喜欢 _______ (活动). 她觉得这很 _______ (形容词)11、填空题：__________ (溶解度) measures how much solute can dissolve in a solvent.12、填空题：A __________ (自然保护区) helps protect both wildlife and plants.13、What is the name of the activity where you create art?A. DrawingB. PaintingC. SculptingD. Crafting答案: A14、填空题：The crow can be very ______ (聪明).15、填空题：The _______ (蜥蜴) can change colors.16、What do we call the liquid part of blood?A. PlasmaB. PlateletsC. HemoglobinD. Cells17、听力题：The _______ of an object can affect how fast it falls.18、选择题：What is the name of the boy who never grows up?A. Peter PanB. Harry PotterC. PinocchioD. Aladdin19、What is the opposite of 'bitter'?A. SweetB. SourC. SpicyD. Salty答案:A20、What is the main ingredient in chocolate?A. CocoaB. FlourC. SugarD. Milk答案:A21、听力题：My brother is a ______. He likes to play chess.22、What do you call a scientist who studies plants?A. BotanistB. ZoologistC. EcologistD. Microbiologist23、听力题：A ________ is a large area of land with few trees.24、选择题：What do you call a person who works as a chef?A. BakerB. CookC. Culinary ArtistD. All of the above25、填空题：The ancient Romans made advancements in ________ and infrastructure.26、What do we call a scientist who studies the behavior of animals?A. EthologistB. ZoologistC. EcologistD. Biologist27、填空题：I want to have a pet _________. (小鸟)28、听力题：__________ are formed when metals react with acids.29、Which animal is known for its intelligence and problem-solving skills?A. DogB. CatC. DolphinD. Elephant答案: C30、填空题：My brother loves __________ (看电影).31、听力题：The ________ (canyon) is carved by water.32、Where does Santa Claus live?A. North PoleB. South PoleC. AustraliaD. Canada答案:A33、听力题：The puppy is ______ to the sound. (curious)34、填空题：The __________ (悬崖) is dangerous but beautiful.35、What is the capital of El Salvador?A. San SalvadorB. Santa AnaC. San MiguelD. La Libertad36、What do we call a sweet food made from cocoa?A. CandyB. ChocolateC. CakeD. Biscuit答案：B37、填空题：The mantis is known for its unique ______ (姿势).38、听力题：The _____ (球场) is busy with players.The _____ (elm) tree is known for its strength.40、What is a common pet that purrs?A. DogB. RabbitC. CatD. Hamster答案: C41、听力题：The ancient Mayans are known for their ________ calendar.42、填空题：A ______ (自然教育) program can inspire future botanists.43、填空题：The _____ (花草) beautify our surroundings.44、填空题：The __________ (历史的对话平台) foster community engagement.45、What do we call the outer layer of the Earth?A. CrustB. MantleC. CoreD. Shell46、选择题：What do you call a large, round fruit that is typically orange?A. AppleB. PeachC. OrangeD. Banana47、听力题：My ______ is a great cook.48、听力题：A __________ is an example of a renewable resource.49、填空题：I think it's fun to swap ________ (玩具名) with my classmates.50、n Massacre was a turning point in American _____ history. 填空题：The BostThe ice cream is ___. (tasty)52、What do you call a large, slow-moving animal that lives in water?A. HippoB. CrocodileC. AlligatorD. Turtle答案:A53、填空题：I love to watch ________ (恐怖片) with friends.54、What do you call the time it takes for the Earth to rotate once on its axis?A. YearB. MonthC. DayD. Hour答案:C55、填空题：The __________ (历史的研究方法) rely on evidence.56、填空题：Lizards like to bask in the ______ (阳光).57、填空题：I wish my __________ (玩具名) could __________ (动词) with me.58、What do we call the tool used to measure weight?A. RulerB. ScaleC. ThermometerD. Stopwatch59、Which bird is known for its colorful feathers?A. SparrowB. CrowC. PeacockD. Pigeon答案:C60、e of Liberty was a gift from ________ to the United States. 填空题：The StonThe chemical formula for aluminum sulfate is ______.62、填空题：My friends and I have a toy ____ competition. (玩具名称)63、听力题：The sun is shining ________.64、Who is the main character in "Alice in Wonderland"?A. Snow WhiteB. AliceC. CinderellaD. Dorothy答案:B65、horizon) appears differently at sea compared to land. 填空题：The ____66、填空题：I saw a _____ (马) in the park.67、What is the capital of Italy?A. FlorenceB. VeniceC. RomeD. Milan答案: C68、听力题：I ride my bike to _____ (学校).69、听力题：The flowers are ______ in the garden. (blooming)70、填空题：Many people enjoy __________ (室外活动) in gardens.71、听力题：The ______ shares insights about technology.72、填空题：My sister's favorite toy is a ________ doll.73、听力题：The bear is a powerful animal in the ____.74、What is the capital of Kosovo?A. PristinaB. MitrovicaC. GjakovaD. Ferizaj答案: A75、What is the opposite of hot?A. WarmB. CoolC. ColdD. Freezing答案:C76、选择题：What is the color of the sun?A. BlueB. YellowC. BlackD. Green77、听力题：The puppy is very ________.78、填空题：My friend has a __________ (有趣的) personality.79、What do we call a person who studies the effect of diet on health?A. NutritionistB. DietitianC. BiologistD. Physician答案: A80、填空题：The ________ is a small but important insect.81、选择题：What is the color of a typical pumpkin?A. OrangeB. YellowC. GreenD. Red82、What do we call the study of the interaction between organisms and their environment?A. EcologyB. BiologyC. ZoologyD. Botany83、填空题：I love to read ______ books before bed.84、What do we call a person who studies the human body?A. BiologistB. AnatomistC. PhysiologistD. Pathologist答案: B85、填空题：Many plants have a ______ (生命周期) that lasts for years.86、听力题：A ____ is known for its ability to store food for winter.87、听力题：A _______ can help to measure the speed of sound in various conditions.88、What do bees make?A. MilkB. HoneyC. ButterD. Cheese89、听力题：We will _______ (have) a picnic in the park.90、听力题：A __________ is a substance that helps to preserve food.91、填空题：The _______ (The Space Race) was a competition for space exploration between the US and USSR.92、听力题：Astronomers use radio waves to study _______ objects.93、填空题：A tarantula's silk is used to create a ______ (网).94、What do we call the layer of gases surrounding the Earth?A. AtmosphereB. BiosphereC. HydrosphereD. Lithosphere答案:A95、填空题：The ______ (阳光明媚的日子) is perfect for gardening activities.96、听力题：My favorite subject is _____ (math/science).97、What do we call the process by which plants make their food?A. DigestionB. PhotosynthesisC. RespirationD. Germination答案: B98、What is the capital city of Malaysia?A. Kuala LumpurB. PenangC. Johor BahruD. Malacca答案: A99、听力题：The stars are _______ (twinkling) in the sky.100、What is the main ingredient in salad?A. FruitB. Leafy greensC. MeatD. Cheese答案:B。