第八届科普英语低年级复赛试卷

上海市第八届小学生科普英语趣味实践活动低年级组 复赛试卷（总分：100分；时间：45分钟）在“答题卡”上认真填写学校、姓名和准考证号码，答题选项用2B 笔涂，填写有误者不计成绩 Part I Vocabulary （词汇）：每题2分，共24分⏹ Guess who I am?（猜猜我是谁？）1. I’m an insect. I can hop, walk, and fly. My long hind legs are used for hopping. My short front legs are used to hold prey and to walk. Name ：2. I live in North America. I have black fur around my eyes which looks like a mask, and grey and black rings on my tail. Name ：3. I am a black and white bird, with pointed wings and a tail with two points. I spend winter in Africa, and fly to northern countries for summer. Name ：4. We look like plants, and we don ’t move around a lot like most animals, but we are animals. The branches you see are in fact groups of us. Name ：⏹ Label the teeth. ( 填上正确的牙齿名称 )5. _______6. _______7. _______ 8. _______A. rootB. enamelC. dentineD. nerves A. swallow B. raccoon C. coral D. grasshopper⑤ ⑥ ⑧ ⑦⏹Choose correct words from Word Bank to fill in the blanks. （选择正确的词填空）A. peelB. longC. gnawD. daggers9.When a lion attacks a zebra its fangs dig into the animal’s neck like _________.10.A beaver takes 4 hours to _______ through a 25 cm tree trunk.11.Drills use their teeth to remove the ________ when they eat fruit and nuts.12.Female drills and their babies have______ grooming sessions.Part II Knowledge Quiz（知识小测验）：每题2分，共36分⏹Choose the correct answer. （选择正确答案）13.A rattlesnake replaces its fangs every _______ days.A.30B.60C.014.Schools in Germany start at 8 am and ends at ________.A. 1 pmB. 3 pmC. 5 pm15.We have 4_______. They are very sharp and can tear food.A.premolarsB.caninesC.incisors16._______ are the hardest organ in human body.A.SkinB.TeethC.Bones17.Adults have a set of _________permanent teeth.A.20B.26C.2818._________ is not named after a Roman or Greek god.A.EarthB.MarsC.Venus19.The biggest egg in the world is the ______ egg.A.peacockB.ostrichC.turtle20.A leopard belongs to the ______ family.A.catB.dogC.bear21.A ________never closes its eyes.A.horseB.birdC.fish22.95% of all the animal species on the earth are __________.A.mammalsB.insectsC.birds23.In Shanghai, the shortest period of daylight occurs during which month?A.DecemberB.JuneC.MarchD.September24.Living things depend on energy from .A.the SunB.the MoonC.soilD.water25.A toy truck rolls over a smooth surface. If the surface is covered with sand, the truck will mostlikely roll .A.slowerB.fasterC.at the same speedD.stop26.A rattlesnake is a .A. insectB. mammalC. amphibianD. reptile27.The life span of an African elephant is between .A. 1 minute and 1 dayB. 1 year and 10 yearsC.10 years and 100 yearsD.100 years and 1,000 years28.What colour is a beaver’s tooth?A.whiteB.orangeC.creamD.brown29.Which sequence shows the life cycle of some insects?A adult →pupa →larva →eggB egg →pupa →larva →adultC larva →pupa →egg →adultD egg →larva →pupa →adult30.Which substance is usually found in nature as a liquid, solid, and gas?A.waterB.rockC.metalD.glassPart III Cloze Test（完型填空）：每题2分，共20分1. Choose the correct word.Some animals are very funny. When American opossums are 31 danger, they go all soft and playdead. When the danger has gone, they get up and run away. The word millipede means a thousand legs. But these tiny animals 32 have 1, 000 legs. They have about 15 to 200 pairs of legs. Scientists have found that snails 33 be very useful in 34 pollution. Their lungs absorb metals, such as zinc or lead. These metals don’t kill snails but 35 them to grow more slowly.( ) 31. A. with B. in C. at( ) 32. A. sometimes B. always C. never( ) 33. A. may B can C. must( ) 34. A. find B. finding C. found( ) 35. A. make B. let C. causeChoose the correct word.Trains are older than cars or trucks. The first train used by Americans was made in England. It was brought to the U.S in 1829. Because it was light green, it had “the Grasshopper”36 its nickname.37 a real grasshopper, this train was not fast. It only went 10 miles an hour. It was very slow.In the same year, 38 train was built by an American. Compared 39 the Grasshopper, the American train was fast. It went 30 miles an hour. People were 40 . This train was called the Rocket. Can you guess why?( ) 36. A. for B. as C. was( ) 37. A. Unlike B. Like C. As( ) 38. A. the other B. other C. another( ) 39. A. to B. with C. by( ) 40. A. amazing B. amazed C. amazePart IV Reading （阅读理解）: 共20分Passage 1：每题1分Men have always wanted to fly like birds. Birds can fly easily because they are light, but men's bodies are heavier. Men first went up into the air in balloons. These are big bags, and they are filled with gas. Hydrogen is a useful gas for balloons. It is lighter than air. Helium is also lighter than air, but it costs a lot of money. So balloons were (and are) usually filled with hydrogen.Balloons have to fly with the wind as they have no engines to drive them against it. Later, men made airships. These were balloons with engines, but they were not round. They were long, and the engineswere at the back. They were also filled with hydrogen and some of them caught fire because the hydrogen escaped and the engines heated it. Then the airship was completely burnt in a few seconds.⏹True or false. （判断对错，对的涂A，错的涂B，即A. True B. False）41.Humans cannot fly because their bodies are too heavy. ( )42.Helium is more often used than hydrogen because it's cheaper. ( )43.Balloons fly against the wind. ( )44.Airships are round balloons with engines at the back. ( )45.Some airships caught fire because the hydrogen escaped and was heated by the engines. ( ) Passage 2：每题1分Leopards are well known for their gold spotted fur, but some leopards have black fur with dark spots. These black leopards are often mistaken for panthers (黑豹).Each adult leopard has its own territory where it lives and, although they often share parts of it, they try to avoid one another.Leopards are mostly nocturnal (夜间活动的), hunting prey at night. Leopards protect their food from other animals by dragging it high up into the trees.Female leopards give birth to a little of two or three cubs at a time. By the time a cub is two years old it will leave the company of its mother and live on their own.⏹True or false. （判断对错，对的涂A，错的涂B，即A. True B. False）46.Some leopards are thought to be panthers because they have black fur. ( )47.Adult leopards like living in groups. ( )48.Leopards usually hunt at night. ( )49.Leopards drag their food up into the trees because they live there. ( )50.The baby leopard stays with its mother for about 2 years. ( )Passage 3 ：每题2分Mandrills and drills live in groups and move around on the ground and in the trees. Mandrill and drill groups—or troops—are made of an adult male and a few females with their young. They all know their role in the troop. Females that don't have babies will distract a mother's attention and play with the baby. Smaller drills move around from tree to tree. The dominant male is heavy and only climb up into the trees at night and during the hottest part of the day. He's the first to come down to the ground in the morning. Drills eat mostly fruit and nuts. They also eat roots, small animals, worms and insects. A malemandrill's top canine teeth can be 6 cm long. Its jaws are as powerful as the jaws from its main predator, the panther.51.How many dominant males are there in one mandrill group?A.several.B.two.C.only one.52.Why do females without children distract a mother's attention?A.They want to grab her food.B.They want to hurt the baby.C.They want to play with the baby.53.The dominant male doesn't climb up into the trees _______.A.in the morningB.at noonC.at night54.Which is not on the menu of drills?A.fruitsB.insectsC.monkeys55.What do male mandrills and panthers have in common?A.They are both black.B.They both have powerful jaws.C.They both have long canine teeth.。