第五组第六次作业

合集下载

小学下册第5次英语第六单元暑期作业(有答案)

小学下册第5次英语第六单元暑期作业(有答案)

小学下册英语第六单元暑期作业(有答案)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.The Declaration of Independence was signed in the year ________.2.The ocean waves are _______ (很大).3.The snake can be very ______.4.We have ______ (课外活动) after school.5.The flowers in the garden are _______ and vibrant.6. A __________ (科学家社区) supports networking and mentorship for young researchers.7.My ______ loves to travel and learn languages.8.The cat loves to scratch _______.9.We seek ________ (opportunities) for growth.10.The Earth's surface is covered with various types of ______.11.The ______ helps us understand different religions.12.Metals are usually _____ at room temperature.13.The teacher encourages _____ (团队合作) in class.14.The __________ (国际文化交流) fosters understanding.15.I have a pet ________ that loves to play.16.The __________ (历史的启迪) inspires us to act.17._____ (sunlight) is essential for growth.18.The _______ is an important part of the ecosystem.19.The _____ (小鸟) is building a nest in the tree.20.The main gas produced by plants during photosynthesis is ______.21.My father is a _____ (teacher/doctor).22.My dog loves to play with a ______ (球).23.The tree is _____ (tall/short) and green.24.The _____ (小鸭) quacks when it is happy.25.看图选词。

海口2024年09版小学5年级上册第5次英语第6单元暑期作业(含答案)

海口2024年09版小学5年级上册第5次英语第6单元暑期作业(含答案)

海口2024年09版小学5年级上册英语第6单元暑期作业(含答案)考试时间:80分钟(总分:110)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、填空题:The __________ (历史的教训) is invaluable.2、填空题:I have a plant that enjoys _____ sunlight.3、What is the main language spoken in the United States?A. SpanishB. FrenchC. EnglishD. German答案:C4、填空题:The _____ (植物世界) is full of wonders and discoveries.5、听力题:I see a ___ (star/moon) shining.6、填空题:We should always ________ (保护) the environment.7、选择题:What is the capital of the Netherlands?A. AmsterdamB. BrusselsC. CopenhagenD. Berlin8、填空题:I have a new _______ to play with (我有一个新的_______可以玩).9、填空题:He is reading a _______ (故事书).10、听力题:The process of creating energy in cells is called ______.11、小鱼儿) swim together in schools. 填空题:The ___12、 (Indians) lived in North America long before European settlers arrived.填空题:The ____13、听力题:Compounds can be classified as ionic or ______.14、填空题:In winter, I like to drink ______ (热巧克力) and watch ______ (雪) fall outside. It’s a cozy feeling.15、填空题:The blue jay is known for its striking ______ (颜色).16、填空题:The ________ (生态恢复) helps revive damaged areas.17、听力题:A chemical change results in the formation of ______ substances.18、填空题:The __________ (历史的启示) encourages reflection.19、听力题:Telescope lenses can be made of _______ glass.20、填空题:In science class, we learn about the ________ (宇宙) and the ________ (星星).21、填空题:The __________ (历史的传承故事) connect generations.22、填空题:A goldfish can be trained to perform simple ________________ (动作).23、How do you say "再见" in English?A. HelloB. GoodbyeC. PleaseD. Thank you24、Which animal is known to be very slow?A. CheetahB. SlothC. RabbitD. Deer答案:B25、What fruit is typically associated with keeping the doctor away?A. BananaB. OrangeC. AppleD. Grape答案:C26、听力填空题:I think it’s essential to have goals in life. They give us direction and purpose. I set goals for myself by __________ and tracking my progress.27、What do we call a person who studies insects?A. EntomologistB. BiologistC. ZoologistD. Botanist答案:A28、填空题:I have a toy _______ that can zoom across the floor.29、填空题:Certain plants are prized for their ______ and use in landscape design.(某些植物因其美丽和在景观设计中的应用而受到赞赏。

小学下册第六次英语第五单元暑期作业(含答案)

小学下册第六次英语第五单元暑期作业(含答案)

小学下册英语第五单元暑期作业(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.I want to be a _______ when I grow up (我长大后想成为_______).2.The chemical formula for sodium nitrite is ______.3.Plants can be studied for ______ (科学研究).4.What do we call the place where we watch movies?A. TheaterB. ParkC. SchoolD. MuseumA5.My pet ______ (仓鼠) likes to run in its wheel.6.My dad is a ______. He helps people solve problems.7.My uncle is a fantastic ____ (gardener).8. A compound that can oxidize is called an ______ compound.9.What do we call the act of decorating a cake?A. IcingB. FrostingC. GlazingD. ToppingB10.I put my shoes _____ (on/under) the bed.11.The __________ is a large area of frozen land in Antarctica. (南极洲)12.Chemical reactions often produce _______ as a byproduct.13.ts can ______ (通过地下根茎扩展). Some pla14.Which season comes after summer?A. WinterB. SpringC. FallD. Autumn15.I like to ___ (watch/play) sports on TV.16.What is 10 3?A. 6B. 5C. 7D. 8C17.The chemical formula for nitric acid is _______.18.The movie is ______ (based) on a true story.19.My _____ (玩具熊) is my best friend.20.I have a special bond with my ____.21.What do we call the largest organ of the human body?A. HeartB. LiverC. SkinD. BrainC22.What do we call a person who studies the behavior of people?A. PsychologistB. SociologistC. AnthropologistD. HistorianA23.What do you call a collection of essays published together?A. AnthologyB. CollectionC. VolumeD. BookA24.I enjoy listening to ________ (音乐) while relaxing.25.My favorite memory from last year was _______ (去旅行).26.The sun is ______ brightly during the day. (shining)27.What is the name of the famous ancient city in Mexico?A. Machu PicchuB. TeotihuacanC. Chichen ItzaD. TulumC28.The capital of Slovenia is __________.29. to play with her toy _____ (车). She love30.His favorite hobby is ________.31. A precipitate can be formed when two solutions are ______.32.Metals are usually good ________ of heat.33.What is the capital of Singapore?A. Singapore CityB. Marina BayC. Orchard RoadD. SentosaA Singapore City34.Jupiter is the largest ______ in our solar system.35.The artist, ______ (艺术家), creates stunning sculptures.36.The _____ (cake/pie) is delicious.37. A heterogeneous mixture has visibly ______ components.38.What do you call a person who studies the earth and its features?A. GeographerB. GeologistC. BiologistD. Astronomer39.What is the opposite of "dark"?A. LightB. DimC. BrightD. FaintA40. A ______ (鸟) can lay eggs in a nest.41.The butterfly landed softly on a ______ (花瓣). It looked very ______ (优雅).42.Which animal is known as "man's best friend"?A. CatB. DogC. RabbitD. Bird43. A _______ can be formed through ionic or covalent bonding.44.I want to ________ (make) a difference.45. A solution that has a low concentration of solute is called a ______ solution.46.What is the name of the famous artist who painted the Mona Lisa?A. PicassoB. Van GoghC. Da VinciD. RenoirC47.What is the name of the famous American actress known for her role in "Breakfast at Tiffany's"?A. Marilyn MonroeB. Audrey HepburnC. Grace KellyD. Elizabeth TaylorB48. A diatomic molecule consists of two ______ of the same element.49.The _______ of light can be tested by passing it through different filters.50.My _______ (仓鼠) is very active at night.51.I want to be a ______ (医生) when I grow up.52.What do you call a place where animals are kept for public display?A. ZooB. AquariumC. FarmD. SanctuaryA53.My favorite toy story is about a brave ____. (玩具名称)54.My teacher always encourages us to _______ (动词) and ask questions in class. It is very _______ (形容词).55.The ________ was a major turning point in the history of Europe.56.The clock is ________ on the wall.57.The __________ is a famous structure in Paris. (埃菲尔铁塔)58.The first manmade object to orbit Earth was _______.59.The train goes _____ (fast/slow) on the tracks.60.My sister enjoys singing in the ____ (choir).61.Which animal is known for its stripes?A. LeopardB. ZebraC. LionD. GiraffeB62. A ____ swims in the ocean and has sharp teeth.63.I can ______ (帮助) my little brother with homework.64.The ________ was a significant trade route in Asia.65.The __________ (历史的传承故事) build community.66.What do we call the time it takes for the Earth to rotate on its axis?A. DayB. YearC. MonthD. HourA67.The __________ was a significant battle during the American Revolutionary War. (萨拉托加战役)68.Chemicals can change color when they undergo a ______.69.se invented ________ around 100 AD. The Civi70.The Earth’s orbit around the sun is not a perfect ______.71.We have a ______ (丰富的) school program.72.The flowers are _______ (blooming) beautifully.73.What is the capital of Saudi Arabia?A. MeccaB. RiyadhC. JeddahD. Medina74. A butterfly uses its ______ to taste food.75.What is the capital of Slovakia?A. BratislavaB. PragueC. BudapestD. ViennaA76. A ______ is a geological feature that rises steeply.77.I love _______ (吃水果).78. A _______ is a chemical process that breaks down organic material.79.What do we call the part of the plant that absorbs water?A. LeafB. StemC. RootD. FlowerC Root80.What do you call the frozen form of water?A. VaporB. LiquidC. IceD. SteamC81.I enjoy ______ (walking) in the park.82. A ____ has a soft, fluffy tail and loves to dig.83.The grasshopper jumps on the ______.84.I like to draw a ________ in my sketchbook.85.The _____ (花环) made of fresh flowers is beautiful.86.The blanket is very ___ (soft/hard).87.I can ______ (count) to in Spanish.88.The hedgehog rolls into a _________. (球)89.What do you call an animal that eats both plants and meat?A. HerbivoreB. CarnivoreC. OmnivoreD. Insectivore90.The food is _______ (热乎乎的).91.What is the name of the traditional Japanese dress?A. KimonoB. SariC. HanbokD. CheongsamA92.What do you call the person who cooks food?A. WaiterB. ChefC. FarmerD. Baker93.What is the main language spoken in the United States?A. SpanishB. FrenchC. EnglishD. ChineseC English94.The hippo spends most of its time in the _________. (水)95.My friend enjoys playing ____ (hockey) with his team.96.The ancient civilization of ________ is known for its contributions to mathematics.97.The color of a solution can indicate its ______.98.ers have a nice ______ (香味). Some flo99.My ________ (家人) likes to go on picnics during the summer.100.What is the capital of Iceland?A. OsloB. ReykjavikC. HelsinkiD. CopenhagenB。

常德“PEP”2024年小学四年级上册第五次英语第六单元暑期作业

常德“PEP”2024年小学四年级上册第五次英语第六单元暑期作业

常德“PEP”2024年小学四年级上册英语第六单元暑期作业考试时间:90分钟(总分:100)B卷考试人:_________题号一二三总分得分一、选择题(共计20题,共40分)1、What is the capital of the United Kingdom?A. LondonB. EdinburghC. BelfastD. Cardiff2、What do you call a group of fish?A. FlockB. SchoolC. PackD. Herd3、What do you call the highest point of a mountain?A. SummitB. BaseC. PeakD. Ridge4、What do we call the opposite of ‘young’?A. NewB. OldC. FreshD. Recent5、What is the largest moon of Saturn called?A. TitanB. GanymedeC. CallistoD. Europa6、What is the name of the fairy tale character who had a magic lamp?A. AladdinB. CinderellaC. RapunzelD. Belle7、What do we call the movement of the earth around the sun?A. RotationB. RevolutionC. OrbitD. Spin8、选择题:What do we call a baby mouse?A. PupB. KittenC. CuddleD. Baby9、选择题:What do we call a baby chicken?A. DucklingB. ChickC. GoslingD. Piglet10、What is the capital of France?A. BerlinB. MadridC. ParisD. Rome11、What is the boiling point of water?A. 50°CB. 100°CC. 150°CD. 200°C12、What do you call a young deer?A. CalfB. FawnC. KitD. Cub13、选择题:What is the capital of the Democratic Republic of Congo?A. KinshasaB. GomaC. LubumbashiD. Mbandaka14、How do you say "friend" in French?A. AmiB. FreundC. AmigoD. Compagnon15、选择题:Which animal is known for its speed?A. TortoiseB. CheetahC. SlothD. Elephant16、What do we call the place where we go to see books?A. LibraryB. StoreC. MuseumD. Gym17、选择题:What is the capital of Brazil?A. Rio de JaneiroB. São PauloC. BrasíliaD. Salvador18、What is the term for the study of the mind and behavior?A. SociologyB. PsychologyC. AnthropologyD. Psychiatry19、选择题:What do we call the protective covering of the human body?A. SkinB. HairC. BonesD. Muscles20、选择题:What do we call a person who repairs cars?A. DoctorB. MechanicC. ChefD. Teacher二、听力题(共计20题,共40分)1、听力题:My sister collects ____ (shells) from the beach.2、听力题:The study of the Earth's surface features is known as ______.3、听力题:A reaction that occurs spontaneously is labeled as a ______ reaction.4、听力题:In a chemical reaction, substances are transformed into new _____.5、听力题:A __________ is a geological feature formed by the movement of water.6、听力题:The dog is barking ________.7、听力题:A solution that has a low concentration of solute is called a ______ solution.8、听力题:We are going to the ___. (concert) tonight.9、听力题:I saw a ________ in the sky.10、听力题:The ______ is a satellite of Earth.11、听力题:A _____ is a celestial body that orbits a star.12、听力题:The process of respiration releases ______ as a byproduct.13、听力题:The ______ enjoys reading mystery novels.A ________ is a large, naturally occurring community of flora and fauna.15、听力题:The __________ is a famous area known for its mountains.16、听力题:We are ___ in the pool. (playing)17、听力题:We are going to ______ (camp) in the mountains.18、听力题:The sun is _____ (shining/raining) today.19、听力题:A polymer is a large molecule made of many ______.20、听力题:The ball is ___ (round).三、填空题(共计20题,共10分)1、填空题:My favorite type of ________ (小吃) is popcorn.2、填空题:World War II lasted from ________ (1939) to 1945.3、填空题:The _____ (小马) trots around the pasture happily. 小马在牧场上快乐地小跑。

泉州2024年11版小学6年级下册第5次英语第六单元暑期作业(含答案)

泉州2024年11版小学6年级下册第5次英语第六单元暑期作业(含答案)

泉州2024年11版小学6年级下册英语第六单元暑期作业(含答案)考试时间:100分钟(总分:110)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:The teacher is ___ the class. (in)2、填空题:My favorite plant is a _______ (我最喜欢的植物是_______).3、听力题:My sister has a pet ________.4、What do you call the study of the Earth's physical features?A. BiologyB. GeographyC. GeologyD. Astronomy答案:B5、听力题:A _______ can help to visualize the concept of friction.6、填空题:My sister enjoys __________. (阅读)7、What is the name of the sweet treat made from sugar and fruit?A. JamB. JellyC. MarmaladeD. Preserves答案: A8、填空题:The sky is clear and ______ (蓝色) today.The chemical formula for ethyl alcohol is _____ (CHOH).10、听力题:The apple is ________ and crunchy.11、What do we call a scientist who studies marine life?a. Marine biologistb. Oceanographerc. Aquatic ecologistd. Ichthyologist答案:a12、填空题:The _____ (松鼠) is gathering nuts for the winter.13、What is the term for a young cat?A. KittenB. PupC. CubD. Calf答案:A. Kitten14、听力题:A river flows into a __________.15、填空题:I enjoy ________ (制作) my own crafts.16、听力题:The cake is ______ with candles. (decorated)17、听力题:I enjoy ___ (going) to the zoo.18、What is the primary color of a raspberry?A. BlueB. RedC. GreenD. Yellow19、听力题:An emulsion is a mixture of two ________ that do not usually mix.20、听力题:The chemical formula for zirconium dioxide is _____.The river is ___ (flowing) gently.22、小龙) is a mythical creature. 填空题:The ___23、听力题:A lizard can ______ its tail.24、Which of these is a cold drink?A. TeaB. CoffeeC. LemonadeD. Soup25、What is the name of the first successful Mars rover mission?A. SpiritB. OpportunityC. CuriosityD. Perseverance26、填空题:The ________ is a big animal that lives in the forest.27、填空题:A toy train goes ______ on the tracks.28、听力题:The _____ of a star is how bright it appears from Earth.29、听力题:She is a great ___. (artist)30、填空题:古代的________ (customs) 反映了社会的信仰和价值。

小学下册第6次英语第五单元暑期作业(含答案)

小学下册第6次英语第五单元暑期作业(含答案)

小学下册英语第五单元暑期作业(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.The Great Wall is located in _______.2.The whale is a ______ animal.3.What is the name of the famous ship that sank on its maiden voyage?A. TitanicB. LusitaniaC. BritannicD. Andrea Doria答案: A4.My friend is a ______. He enjoys basketball.5.The process of heating something to kill bacteria is called ______.6.Many plants have __________ (药用) properties that can heal.7.My toy ________ can zoom around the room.8.I always do my ______ after school.9.The stars are _______ (在闪耀).10. A ______ is a type of animal that has a pouch.11.He can ________ (跑) fast.12.My cousin, ______ (我的表妹), enjoys playing video games.13.The ancient Greeks are known for their contributions to ________.14.What is the capital of Sri Lanka?A. ColomboB. KandyC. GalleD. Jaffna答案:A15.In a chemical reaction, the substances you start with are called ______.16.She is a _____ (志愿者) who helps at the shelter.17.I enjoy playing chess because it challenges my __________.18.My ______ enjoys playing the guitar.19.What is the capital of Luxembourg?A. Luxembourg CityB. BrusselsC. AmsterdamD. Paris答案: A20.The __________ (历史的角色) shapes our understanding of identity.21.The _____ (phone) is ringing.22.I planted a _____ (果树) in my garden.23. A cat chases a _______ around the house.24.The __________ is a famous region for wine production in France. (波尔多)25.读一读,找出不同类的单词。

小学上册第6次英语第五单元暑期作业

小学上册第6次英语第五单元暑期作业

小学上册英语第五单元暑期作业英语试题一、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.an Revolution led to the establishment of the ________ (苏维埃政权). The Russ2. A solution that cannot dissolve any more solute is called ______.3.My pet rabbit loves to _________ (挖掘) in the garden.4. A mixture in which you can see the different parts is called a _____ (heterogeneous mixture).5.What do you call the front of your body?A. BackB. ChestC. StomachD. Face6.My mom is my best ____.7. A covalent bond forms when atoms _____ electrons.8.I write ______ (信) to my friend.9.She is ___ a letter to her grandma. (writing)10. A diverse garden can attract a wide variety of ______. (多样化的花园可以吸引各种动物。

)11.What is the main ingredient in salad dressing?A. OilB. WaterC. SugarD. SaltA12.The ______ (小鸭) quacks loudly when excited.13.The chemical symbol for argon is ______.14.What is the name of the large flightless bird native to Australia?A. PenguinB. OstrichC. EmuD. KiwiC15.The ______ is a type of bird that can swim.16.We have _____ (three/four) pets at home.17.The trees in the _______ provide shade in summer.18. A _______ is a large piece of land surrounded by water.19. A ____ is a curious animal that enjoys jumping over obstacles.20.Do you know my _____ (邻居)?21.The wind is _______ (whistling) through the trees.22.What is the name of the instrument played with strings?A. FluteB. GuitarC. TrumpetD. DrumB23.On a cloudy day, the sky is ______ (灰色).24.What is 3 × 4?A. 10B. 12C. 14D. 16B25.The butterfly is ___ (flapping) its wings.26. A ____ is known for its distinctive calls and is often found in forests.27. A single atom of oxygen can bond with two _____ atoms to form water.28.小蛇) slithers silently through the grass. The ___29.In a balanced chemical equation, the number of atoms must be _______.30. A chemical symbol consists of one or two ______.31.What do we call a person who studies the impact of social media on society?A. Media SociologistB. AnthropologistC. PsychologistD. HistorianA32.In chemistry, a solvent is the substance that does the _____.33. A _____ is a place known for its beauty and tranquility.34.What do you call a baby ostrich?A. ChickB. CalfC. KidD. Hatchling35.How do you say "cat" in Spanish?A. GatoB. ChatC. KatzeD. Paw36.What do you call the natural satellite of Earth?A. MarsB. VenusC. MoonD. Sun37.What is the name of the vast region containing thousands of galaxies?A. SuperclusterB. Galaxy ClusterC. NebulaD. Cosmic Web38.My grandma bakes ____ (bread) every week.39.The _____ (pen/pencil) is on the desk.40.It is _______ (cold) in winter.41.Which animal is known as a "man’s best friend"?A. CatB. DogC. BirdD. Fish42.My ________ (叔叔) is really funny and makes everyone laugh.43.I enjoy _______ (打篮球) with my friends.44.Which of these is a type of tree?A. RoseB. OakC. DaisyD. TulipB45.What do you call the study of rocks?A. BiologyB. ChemistryC. GeologyD. AstronomyC46.I can ______ (climb) a tree very well.47.My favorite animal is a _______ (猫), and I think they are very _______ (可爱).48.The state of matter that has a definite volume but not a definite shape is _____.49.What do you call a baby chicken?A. DucklingB. PigletC. ChickD. Calf50. A __________ (碳足迹) measures the environmental impact of chemical processes.51.The __________ (历史的沟通) fosters connections.52.What is the color of an apple?A. BlueB. GreenC. RedD. All of the aboveD53.An alkali is a type of ______ that dissolves in water.54.My favorite fruit is ______ (watermelon).55.My turtle is very _______ (温和).56.At night, I look at the ________ in the sky.57.The ________ was a significant moment in the history of science.58.________ (植物资源开发) benefits communities.59.Lunar modules were used during the Apollo missions to land on the ______.60. A _____ (67) is a large area covered with trees.61.The molecule responsible for carrying oxygen in the blood is ______.62.What is the name of the famous American singer known for "Toxic"?A. Britney SpearsB. Christina AguileraC. Jennifer LopezD. Mariah CareyA63.What do you need to draw?A. PencilB. SpoonC. ForkD. PlateA64.The ______ helps us learn about wildlife.65.What is the currency used in the United States?A. DollarB. EuroC. PoundD. Yen66.The establishment of the United Nations took place in ________.67.What is the capital of the Philippines?A. ManilaB. CebuC. DavaoD. Iloilo68.I love _____ (chocolate/vanilla) ice cream.69. A chemical bond is formed when atoms ______.70.What is the term for a baby sheep?A. CalfB. LambC. KidD. PupB71.The toy is ___ (broken).72.What is the process of breathing in called?A. ExhalationB. InhalationC. RespirationD. CirculationB73.The cake is very ___. (delicious)74.The bunny hops around the _____ yard.75.The letter is ________ in the mailbox.76.The Himalayas are found in __________.77.He is really __________ (友好的) to everyone.78.My sister is a good ________.79. A ____ is often kept as a pet and enjoys playing fetch.80.I saw a _______ (猴子) in the zoo.81.Dolphins are very _______ and friendly.82.What do we call a young pig?A. CalfB. PigletC. KidD. Foal83.The weather is _____ (hot/cold) in summer.84.The ant has a strong _______ (合作) ability.85.The bell is ___ (ringing) loudly.86.What is the capital of Malaysia?A. Kuala LumpurB. PenangC. MelakaD. Johor BahruA87.Which of these is a mode of transportation?A. BicycleB. TreeC. HouseD. MountainA88.The snow is ______ (falling) softly on the ground.89.We should _______ (关心) our neighbors.90.What do you call the place where you can watch movies?A. TheaterB. CinemaC. AuditoriumD. Gallery91.Which season is known for blooming flowers?A. WinterB. SpringC. SummerD. AutumnB92.How many continents are in the world?A. SevenB. SixC. FiveD. EightA93.The ______ (小鸟) sings beautifully in the morning.94.I like to _______ (种花) in my backyard.95.The Pleiades is a famous star ______.96. A balanced equation has the same number of atoms on both ______.97.The __________ is a famous area known for its historic battles.98.What is the name of the fairy in Peter Pan?A. CinderellaB. TinkerbellC. Snow WhiteD. Belle99.When it’s hot, I drink lots of __________. (水)100.The ancient Chinese used compass for ______ (航海).。

小学上册第5次英语第六单元暑期作业

小学上册第5次英语第六单元暑期作业

小学上册英语第六单元暑期作业英语试题一、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.The ____ is a tiny insect that can be found buzzing around flowers.2.What is the name of the boundary around a black hole?A. Event HorizonB. SingularityC. Photon SphereD. Gravity Well3.What do we call the story of someone's life?A. BiographyB. NovelC. FictionD. Poetry4.The ______ can be found in almost every habitat.5.The Battle of Waterloo marked the end of ________ rule in France.6.ts can _____ (climb) walls. Some pla7.I see a _____ (cat/dog) in the garden.8.The sun is ______ (shining) brightly today.9.My cousin is a ______. He enjoys riding horses.10.My favorite place to relax is ________.11.The scientist conducts _____ (实验) in the lab.12.The bee makes honey in _______.13.The __________ (历史的启示) guides our future.14.The dog is ___ with a toy. (playing)15.What do you call the process of growing plants?A. GardeningB. FarmingC. AgricultureD. HorticultureC16.The chemical formula for ammonium nitrate is ______.17.__________ (气体) can expand to fill any container.18.The puppy is ______ to the sound. (curious)19.The ______ helps us learn about music.20.What is the primary color of a lemon?A. GreenB. YellowC. RedD. Orange21.I can _____ (swim/fly) in the pool.22.What do we call a person who travels in space?A. PilotB. AstronautC. ScientistD. EngineerB23.The pelican has a large _______ (喙) for catching fish.24.My sister enjoys learning about ____ (geography).25.What do we call the act of putting seeds in the ground?A. SowingB. HarvestingC. PlantingD. WeedingA26.The flower pot is ______ (colorful) and bright.27., the weather can be very ______ (多变). Sometime28.My dad is a great __________ (支持者) of my goals.29.Planting flowers in patterns can create visually striking ______. (以图案种植花卉可以创造出视觉上引人注目的效果。

  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

3.18(a) (0)E ´->E (1)E->E+T (2)E->T (3)T->TF (4)T->F (5)F->F* (6)F->a (7)F-bfollow(E)={+} follow(T)={+,a,b} follow(F)={*,+,a,b}+TEF Ta I 4bI 5FF **abI 0E ´->﹒E E->﹒E+T E->﹒TT->﹒TFT->﹒FF->﹒F*F->﹒aF->﹒bI 1 E ´->E ﹒ E->E ﹒+T I 2E->T ﹒T->T ﹒F F->﹒F* F->﹒a F->﹒b I 3 T->F ﹒F->F ﹒* I 6 E->E+﹒T T->﹒TF T->﹒F I 7T->TF ﹒ F->F ﹒* I 8F->F*﹒I 4 F->a ﹒ I 5F->b ﹒I 9E->E+T ﹒ T->T ﹒F F->﹒F* F->﹒a F->﹒bI 10T->F ﹒F->F*﹒(b) 3. F I 3 a I 4I 5 b T F a F F I 7 b FI 4 a I 5 a b * * b I 8action goto status a b + * $ E T F 0 s4 s5 1 2 3 1 s4 s5 r6 acc 2 r4 r4 r2 3 r6 r6 r4 r8 7 4 r7 r7 r6 r6 5 r1 r7 r7 r7 6 9 10 7 r3 r3 r3 s8 8 r5 r5 r5 r5 9 s4 s5 r1 7 10r4r4r4I 0 E ’->﹒E , $E->﹒E+T , $/+E->﹒T , $/+T->﹒TF , $/+/a/bT->﹒F , $/+/a/bF->﹒F*, $/+/a/b/*F->﹒a , $/+/a/b/* F->﹒b , $/+/a/b/* I 1 E ’->E ﹒, $ E->E ﹒+T , $/+ I 2E->T ﹒, $/+ T->T ﹒F , $/+/a/b F->﹒F*, $/+/a/b/* F->﹒a , $/+/a/b/* F->﹒b , $/+/a/b/* I3 T->F ﹒,$/+/a/b F->F ﹒*,$/+/a/b/* I 4F->a ﹒,$/+/a/b/*I 5 F->b ﹒,$/+/a/b/* I 6 E->E+﹒T , $/+ T->﹒TF , $/+/a/b T->﹒F , $/+/a/b F->﹒F*,$/+/a/b/* F->﹒a , $/+/a/b/*F->﹒b , $/+/a/b/* I 7 T->TF ﹒, $/+/a/b F->F ﹒*,$/+/a/b/* I 4 I 5 I 8F->F*﹒,$/+/a/b/* I 9 E->E+T ﹒, $/+ T->T ﹒F , $/+/a/b T->F ﹒ , $/+/a/b F->﹒F*,$/+/a/b/* F->﹒a, $/+/a/b/* F->﹒b, $/+/a/b/*F3.19 ① LR(0) (0)S ´->S (1)S->SA (2)S->A (3)A->a ②DFAASaAa状态 Action goto a b + * $ E T F 0 s4 s5 1 2 3 1 s6 acc 7 2 s s5 r2 r2 3 r4 r4 r4 s8 r4 4 r6 r6 r6 r6 r6 5 r7 r7 r7 r7 r7 6 s4 s5 9 3 7 r3 r3 r3 s8 r3 8 r5 r5 r5 r5 r5 9s4s5r1r17I 0(0)S ´->﹒S(1) S->﹒SA(2) S->﹒A(3) A->﹒aI 1S ´->S ﹒ S->S ﹒A A->﹒aI 2S->A ﹒ I 3A->a ﹒I 4S->SA ﹒I 3A->a ﹒SLR分析表action gotoa $ S A0 s3 1 21 s3 acc 42 r2 r23 r3 r34 r1 r1Follow(s)={a,$}Follow(A)={a,$}由上表可知,是SLR(1)文法。

First(SA)=First(s)={a}First(A)={a}因为First(SA)П First(A)={a}=Ø所以不是LL(1)文法3.20 (a) 证明下面文法S→AaAb | BbBaA→ɛB→ɛ是LL(1)文法,但不是SLR(1)文法。

①因为FIRST(AaBb)={a},FIRST(BbBa)={b},FIRST(AaBb)∩FIRST(BbBa)=Φ,所以文法是LL(1)的。

②构造SLR(1)项目集:I0:S′→•SS→•AaAbS→•BbBaA→•B→•因为FOLLOW(A)∩FOLLOW(B)={a,b},存在归约-归约冲突,所以不是SLR(1)的。

3.23(a)、证明下面文法S->Aa|bAc|Bc|bBaA->dB->d是LR(1)文法,但不是LALR(1)文法。

证明:拓展文法:0 S′->S1 S->Aa2 S->bAc3 S->Bc4 S->bBa5 A->d6 B->dLR(1):action gotoa b c d $S A B0 S3 S5 1 2 41 Acc2 S63 S9 7 84 S105 Y5 Y66 Y17 S118 S129 Y6 Y510 Y311 Y212 Y4因为有同心项目,合并之后构造LALR(1)分析表(I5,I9同心项)action gotoa b c d $S A B0 S3 S9 1 2 41 acc2 S63 S9 7 84 S105 Y5/Y6 Y5/Y6有冲突,停止分析,因为有多重出口,所以不是LALR(1)文法。

3.24 一个非LR(1)的文法如下:L→M L b | aM→ɛ请给出所有含移进-归约冲突的规范LR(1)项目集,以说明该文法却是不是LR(1)的。

拓广文法:(0)L′→ L(1)L→MLb(2)L→a(3)M→ɛI7L→MLb•,$I0L′→•L,$ L I1 L′→L•,$ bL→MLb,$ I2 L→M•Lb,$ L I4 L→ML•b,$L→•a,$ M L→•MLb,bM→•,a L→•a ,b a I6L→a•,bM→•,aa MI3L→a•,$ I5 L→M•Lb,b a I6L→•MLb ,bL→• a,b L I8L→ML•b ,b M M→•,a bI9L→MLb•,bLR(1)分析表如下:状态actiongoto a b $ L M 0 S3 |r3 1 2 1 acc 2 S6 | r3 4 2 3 r2 4 S7 5 S6 8 5 6 r2 7 r1 8 S9 9r1由表知项目集I 0 ,I 2对a 存在移进-归约冲突,所以该文法不是LR (1)的。

3.25(a )(0) E '→ E (1) E → E+id (2) E → ididE+idI0E '→ ˑEE → ˑE+id E → ˑid I1E '→ E ˑ E → E ˑ+id I2 E → id ˑ I3E → E+ˑidI4E → E+id ˑFollow(E)={+,$} ACTIONGOTO状态 + id $ E 0 S2 1 1 S3 ACC 2 r2 r2 3 S4 4r1r1有表可知该文法是SLR(1)文法。

(b)(0) E '→ E (1) E → E+Mid (2) E → id (3) M → Ɛ+M idE idACTIONGOTO状态 id + $ E M 0 S2 1 1 S3 acc 2 r2 3 r3 4 4 S5 5r1没有冲突是LR (1)文法。

(0) E '→ E (1) E → ME+id (2) E → id (3) M → ƐI0 E '→ ˑE ,$ E → ˑE+Mid ,+ E → ˑid ,+I1E '→ E ˑ ,$E → E ˑ+Mid ,+ I2 E → id ˑ ,+ I3E → E+ˑMid ,+I4E →I5 E → E+Mid ˑ ,+EME + idMidE + id M idI6ACTION GOTO id + $ E M 0 S3/r3 1 2 1 ACC 2 S6 4 5 3 r2 4 S7 5 S6 8 5 6 r2 7 S9 8 S10 9 r1 10 S11 11r1由表可知,有冲突不是LR(1)文法3.26(a ).S :任意数I :任意正整数R :任意小数或无意义的数I0 E '→ ˑE ,$ E → ˑME+id ,$ E → ˑid ,$I3 E → id ˑ ,$I1E '→ E ˑ ,$I2E → M ˑE+id ,$ E → ˑME+id ,$ E → ˑid ,+I4E → ME ˑ+id ,$I5 E → M ˑE+id ,$ E → ˑME+id ,+ I6 E → id ˑ ,+ I7E→I8E →I10 E →ME+ˑid ,+I9E → ME+id ˑ,$I11 E → ME+id ˑ ,+W :任意数字或无意义的数 F :任意正整数 (b ).(0)S ′→S (1)S →I (2)S →R (3)I →d (4)I →Id (5)R →WpF (6)W →Wd (7)W →ε (8)F →Fd (9)F →dS−−→ :I −−→ d−−→R−−→ d−−→W −−→ P −−→ F−−→↓d ↓ d ↓d状态ActionGotodp ε$SIRW0S4,r7r712351acc 2S6r13r24r3r35S8S76r4r47S1098r6r69S11r510r9r911I 0面对d 存在移动--规约冲突,所以不是LL(1)文法。

I 0 S →·S ,$S →·I ,$ S →·R ,$I →·d ,$∣dI →·Id ,$∣d R →·WpF ,$W →·Wd ,p ∣d W →·,p ∣d I 1:S →S ·,$ I 2:S →I ·,$ I →I ·d ,$∣d I 3:S →R ·,$I 4:I →d ·,$∣dI 5:R →W ·pF ,$ W →W ·d ,p ∣dI 6:I →Id ·,$∣d I 8:W →Wd ·,p ∣dI 7:R →Wp ·F ,$F →·Fd ,$∣d F →·d ,$∣d I 9:: R →WpF ·,$ F →F ·d ,$∣dI 10: F →d ·,$∣dI 11: F →Fd ·,$∣d3.29解: (1) 0s ’→s 1s →aAc2 A →Abb3 A →bI 0 I 1 c I 5fcgghhhhhjj s a I 2 A I 3 b I 6b I 4action gotoa b c$SA0 S2 1 1 acc 2 S4 3 3 S6 S5 4 r3 r3 5 6 S7 7r2r2S ′→·S ,$S→·aAc ,$ S ′→S · ,$ S →a ·Ac , $ A →·Abb ,c|b A →·b ,c|bS →aA ·c ,$A →A ·bb ,c|bA →b · ,c|bS →aAc · ,$ A →Ab ·b ,c|bA →Abb · ,c|bbFollow(A)={b,c}Follow(S)={$}所以是LR(1)文法。

相关文档
最新文档