中学生百科英语第一册 Unit1lesson1-5(6页).doc

-中学生百科英语第一册 Unit1lesson1-5-第 6 页Unit1 Lesson 1（01） Thekiwi ThekiwilivesonlyinNewZealand.Itisaverystrangebirdbecauseitcannotfly.Thekiwiisthesamesizeasachicken.Ithasnowingsortail.Itdoesnothavefeatherslikeotherbirds.Itsfeatherslooklikehair.Eachfoothasfourtoes.Itsbeakisverylong. Akiwilikestohavealotoftreesaroundit.Itsleepsduringthedaybecausethesunlighthurtsitseyes.Itcansmellthingsverywell.Itsmellsthingsbetterthanmostbirdsdo.Thekiwiseggsareverybig.ThereareonlyafewkiwisintheNewZealandnow.Peopledonotoftenseethem.Thegovernmentsaysthatpeoplecannotkillkiwis.NewZealanderswanttheirkiwistolive.ThereisapictureofkiwionNewZealandmoney.PeoplefromNewZealandaresometimescalled“kiwis”(147 words)Unit1 Lesson 2（02）TheCamel Thecamelcangowithoutwaterforalongtime.Somepeoplethinkitstorewaterinitshump.Thisisnottrue.Itstoresfoodinitshump.Thecamelsbodychangesthefoodintofat.Thenitstoresthefatintoitshump.Itdoesntstorethefatalloveritsbody.Fatalloverananimalsbodykeepstheanimalwarm.Camelsliveinthedesert.Theydonotwanttobewarmduringtheday. Thedesertisveryhot.Thecamelgetshotterandhotterduringtheday.Itstorestheheatinitsbodybecausethenightsarecool.TheArabiancamelhasonehump.TheBactriancamelofCentralAsiahastwohumps.Italsohaslong,thickhairbecausewintersarecoldinCentreAsia.Thereisalotofsandinthedesert.Thecamelhaslongeyelashes.Theeyelasheskeepthesandoutofthecamelseyes.Arabichasabout150wordstodescribeacamel.ManypeoplewhospeakArabicneedallthesewordsbecausethecamelisveryimportanttothem.(185 words)Unit1 Lesson 3（03）The Polar BearThe polar bear is a very big white bear. We call it the polar bear because it lives inside the Arctic Circle near the North Pole. There are no polar bears at the South Pole.The polar bear lives in the snow and ice. At the North Pole, there is only snow, ice, and water. There is not any land. People cannot see the polar bear in the snow very well because its coat is yellow-white. It has a very warm coat because the weather is cold north of the Arctic Circle.This bear is three meters long, and it weighs 450 kilos (kilograms). It can stand up on its back legs because it has very wide feet. It can use its front legs like arms. The polarbear can swim very well. It can swim 120 kilometers out into the water. It catches fish and sea animals for food. It goes into the sea when it is afraid.Some people want to kill the polar bear for its beautiful white coat. The governments of the United States and Russia say that no one can kill polar bears now. They do not wantall of these beautiful animals to die. (200 words)Unit1 Lesson 4（04）The HippopotamusThe hippopotamus, or hippo, lives in the hot part of Africa. It is a mammal. That is, its babies are born alive, and they drink milk from the mother's body.The hippopotamus is a large animal. It weighs four tons. Its stomach is seven meters long, and it eats only plants. It is a mammal, but it spends a lot of time in the water.During the day, it sleeps beside a river or a lake. Sometimes it wakes up. Then it goes under the water to get some plants for food. It can close its nose and stay under water for ten minutes. Its ears, eyes, and nose are high up on its head. It can stay with its body under the water and only its ears, eyes, and nose above the water. Then it can breathe the air.At night, the hippo walks on the land and looks for food. It never goes very far from the water.A baby hippo often stands on its mothers back. The mother looks for food underwater. The baby rides on her back above the water. (184 words)Unit1 Lesson 5（05）The DolphinCan dolphins talk? Maybe they can't talk with words, but they talk with sounds. They show their feelings with sounds.Dolphins travel in a group. We call a group of fish a "school." They don't study, but they travel together. Dolphins are mammals, not fish, but they swim together in a school.Dolphins talk to the other dolphins in the school. They give information. They tell when they are happy or sad or afraid. They say "Welcome" when a dolphin comes back to the school. They talk when they play.They make a few sounds above water. They make many more sounds under water. People cannot hear these sounds because the sounds are very, very high. Scientists make tapes of the sounds and study them.Sometimes people catch dolphins for a large aquarium.(An aquarium is a zoo for fish.) People can watch the dolphins in a show. Dolphins don't like to be away from their school in an aquarium. They are sad and lonely.There are many stories about dolphins. They help people. Sometimes they save somebody's life. Dolphin meat is good, but people don't like to kill them. They say that dolphins bring good luck. Many people believe this. (201 words)