上海市第八届小学生科普英语趣味实践活动高年级组复赛试卷（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PartⅠVocabulary（词汇）：每题2分，共16分⏹Choose the correct words from the Word Bank to fill in the blanks. （选词填空）A.itchB.environmentallyC.slimyD.fertile1.Earthworms are long and________ and live underground.2.Earthworm activity helps to keep the land rich and _______for farmers.3.When allergic to pollen, you sneeze, your eyes ______ and your nose runs.4.Madrid displays its ________ friendly Bamboo House, a public housing project for low-incomepeople.⏹Do you know how earthworms in a vermifiltration plant work? Put the following steps intothe right order.（按正确的顺序排序）正确的顺序是： 5. 6.7.8.A.The waste is put in boxes. The worms love eating it.B.The worms’ droppings are sieved. They become fertilizer for the plants in the village.C.Huge amount of dirty water is produced everyday. The dirty water arrives through the sewagepipes and moves up a huge filter.D.Solid waste like bits of food and hair and so on, are carried up the spiral section（螺旋管部分）.Solid waste is piled up. Bacterium helps the waste to rot.PartⅡKnowledge Quiz (知识小测验）：共44分⏹Read the following passage and choose the correct answer.根据文章选出与图片对应的单词。

每题1分The pollen grains release allergens into the nasal passage, the tracheaand the lungs. They also get into the blood. Special white corpusclesimmediately act to defend the body. They make weapons calledantibodies that cling to the allergens to destroy them.A.white corpusclesB.allergenC.pollen grainsD.antibodies9.10.11.12.⏹Choose the correct answer. 每题1分A.wingsB.spiraclesC.antennaepound eye13.14.15.16.⏹Choose the correct answer. 每题2分17.Dinosaurs lived __________years ago.A.6, 500B.65, 000C.65, 000, 00018._________is the national language in India but only one in five people speak it.A.EnglishB.HindiC.Indonesian19._________ respect cows as a gift from God and don’t eat beef.A.HindusB.MuslimsC.Christians20.Frogs breathe not only with their lungs, but also through their ___________.A.mouthB.skinC.nose21.The only bird that is able to fly backwards is _______.A.the crowB.the hummingbirdC. the swallow22.Plants produce a chemical called _________ to capture energy from the sun.A. chlorophyll (叶绿素)B. oxygenC. carbon dioxide23.Traditional Thanksgiving meals include the following except____________.A.pumpkin pieB.turkeyC.pizza24.The capital of Australia is ___________.A.SydneyB.MelbourneC.Canberra25.The first train was invented in________.A.EnglandB.AmericaC.German26.Hollywood (好莱坞) is situated in the city of __________.A.New YorkB.Los AngelesC.Seattle27.Which human activity has a harmful effect on the environment?A breathingB growingC plantingD polluting28.What motion causes day and night?A revolution of Earth C rotation of EarthB revolution of the Moon D rotation of the Moon29.Which substance is usually found in nature as a liquid, solid, and gas?A waterB rockC metalD glass30. A ball is tossed up in the air and it comes back down. The ball comes back down because ofA magnetismB gravityC erosionD friction31.Which adaptation often helps an animal attract a mate?A hibernationB camouflageC colorationD migration32.Which of these Earth layers is the thinnest?A The inner coreB The outer coreC The mantleD The crust33.The Earth is very different from other planets in the solar system because it has the mostA solid rockB volcanoesC liquid waterD high winds34.One way animals usually respond to a sudden drop in temperature is byA sweatingB shiveringC blinkingD salivating Part ⅢCloze Test（完型填空）：共15分Choose the correct word. 每题2分Spiders’ webs look35 but they are actually very strong. A spider’s thread 36 be 100 times stronger than the same amount of steel! It’s an ideal raw m aterial for 37 very strong fabric. 38 collecti ng enough spiders’ thread is a problem. We don’t know 39 to breed thousands of spiders together. So scientists have transplanted spider characteristics into silk worms.( ) 35. A. weak B. fragile C. sick( ) 36. A. may B. must C. can( ) 37. A. making B. make C. made( ) 38. A. And B. Because C. But( ) 39. A. how B. why C. where⏹Choose the correct word. 每题1分The World Expo also known as the World's Fair is an event that has been _ 40 _ for over 150 years. It is 41 like the Olympic Games, except that instead of Sports, it's about Science, Technology, Culture and Economics. The Shanghai 2010 World Expo is expected to be the largest World Expo 42 held. The goal of the Expo is to exchange ideas, promote each country's achievements and developments in 43 quality of life, and to foster relations 44 countries.( ) 40. A. round B. about C. around( ) 41. A. totally B. sort of C. nothing( ) 42. A. ever B. never C. always( ) 43. A. improve B. improved C. improving( ) 44. A. within B. among C. betweenPart ⅣReading （阅读理解）：共25分Passage 1 ：每题1分Ragweed is common throughout Europe. It’s a relation of mugwort, which grows in Britain. Ragweed plants are between 10 cm and 2 m tall. They grow by motorways and railway lines. The flowers on one ragweed plant can produce 2.5 billion pollen grains every day! Pollen can cause severe allergies, which is why many flowering plants, such as ragweed, are often cut down before they flower. Ragweed pollen grains are round and covered with hundreds of prickles (刺). They contain substances called allergens (过敏原) that are harmful to some people.⏹True or false. （判断对错，对的涂A，错的涂B；即：A. True B. False ）45.Mugwort, a relation of ragweed, grows in Britain. ( )46. A ragweed can be as tall as 2 meters. ( )47.Many flowering plants are cut down after they flower. ( )48.Ragweed plants grow in gardens and vegetable fields . ( )49.Allergens are contained in the prickles of the pollen grains. ( )Passage 2：每题1分Butterflies are active during the day because they fly best when they are warmed by sunlight. They are often brightly-colored, unlike moths which are usually dull-colored and fly mostly at night. To tell them apart, just look at their feelers or antennae. Butterflies have slender antennae (触角) that end in a swelling (突起). A moth’s antennae often look like tiny feathers but never have the swelling at the tip.⏹True or false. （判断对错，对的涂A，错的涂B；即：A. True B. False ）50.Butterflies like flying in the sunlight. ( )51.Moths are usually brightly-colored. ( )52.You can tell a butterfly from a moth by looking at their antennae. ( )53.Butterflies have antennae that look like tiny feathers. ( )54. A moth’s antennae have no swelling at the tip. ( )Passage 3 ：每题1分Would you believe that the mosquito was responsible for more human deaths than any other living creature? When it sucks your blood, it can transmit(传播) diseases like malaria, yellow fever and many others. Only females insert (插入) their straw-like proboscis(吸管) into your skin and drink your life essence(精华) . They need a blood meal in order to produce eggs. Males are satisfied with nectar from flowers. There are 3, 000 mosquito species around the world. Many don't bite humans, preferring other species. And finally, you are more likely to get bitten if you have smelly feet. And biting activity increases by 500 times during a full moon.⏹True or false. （判断对错，对的涂A，错的涂B；即：A. True B. False ）55.If a person is bitten by mosquitos, he may get diseases. ( )56.Only male mosquitos drink blood. ( )57.Not all mosquitos bite humans. ( )58.You are less likely to be bitten by a mosquito if you seldom wash your feet. ( )59. A mosquito is more likely to bite when there is a full moon. ( )Passage 4 ：每题2分Komodo dragons, which live on the Sunda Islands in Indonesia, have plenty to eat on the island. There are deer, wild horses, buffalo and wild boar. Some biologists told us that pygmy elephants used to live there. They were the Komodo dragon’s favourite prey but they disappeared 2 million years ago. Sometimes all the komodo dragons in the area come together to eat a baffalo that died a few days ago. The biggest dragon gets to eat the best bits!Komodo dragons eat each other. Old companions that cannot defend themselves are often eaten. The dragons can neutralize the deadly bacteria in their saliva so they don’t die if they bit each other. Komodo dragons are mainly carrion eaters but they also hunt the young of their own species. Theyprowl around nests and eat the baby. Baby Komodo dragons escape to the trees where they spend the first year of their lives.60._________ are not food for Komodo dragons living on the island today.A.DeerB.Wild boarC.Pygmy elephants61.Whether a Komodo dragon can get the best part of the prey depends on its________.A.ageB.sizeC.height62.Komodo dragons eat their old companions because_________.A.they taste goodB.they are too old to fightC.there is nothing else left on the island63.Which of the following is NOT correct?A.Komodo dragons like eating dead animals.B.Komodo dragons will die if they bit their own species.C.Komodo dragons sometimes eat the babies of their own species.64.Where do Komodo dragons stay before they are one year old?A.In the trees. .B.In their nests.C.In the caves.。