中学生百科英语 (1).pdf

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1、Unit one Lesson one:The kiwi第一单元，第一课：无翼鸟The kiwi lives only in NewZealand.It is very strange bird.Because itcan not kiwi is the same size as a has no wings or does not havefeathers like other feathers look like foot has four s beak is verylong.A kiwi likes to have a lot of trees around it.It sleeps

2、during thesunlight hurts its can smell things very smells things better than mostbirds kiwis eggs are very big.Therere only a few kiwis in New Zealand now.People do not often see them.The government says that people can not kill kiwis.New Zealanders wanttheir kiwis to is a picture of a kiwi in New Z

3、ealand money.People fromNew Zealand sometimes called kiwis.无翼鸟住在新西兰，它是一只很奇怪的鸟，因为，它不会飞，无翼鸟跟小鸡的大小相同，它没有翅膀，也没有尾巴，它没有像别的鸟一样的尾巴，它的羽毛看起来很像头发，每只脚都有4个脚指头，它的嘴巴很长。无翼鸟喜欢周围有很多树。它白天睡觉，因为，阳光会伤害它的眼睛。它的嗅觉非常好，它的嗅觉比大多数的鸟要好。无翼鸟蛋非常大.在新西兰现在只有一些无翼鸟，人们不经常看见它们，政府说人们不能杀死无翼鸟。新西兰人想要它们的无翼鸟活下去，新西兰的钱上有无翼鸟的图片，住在新西兰的人们有时被叫作无翼鸟。第一单

4、元 第四课河马 The hippopotamus河马住在非洲的热的部分，它是哺乳动物，也就是说，它的孩子们生下来是活的，而且，它们喝妈妈身上的牛奶。The hippopotamus,or hippo,lives in the hot part of Africa,its amammal,that is,its babies are born alive,and they drink milk from theirmothers body.河马是一个很大的动物，河马的重量有四吨，它的胃是7米长，它只吃植物，河马是哺乳动物，但是，它花费很多时间在水里。The hippopotamus is a l

5、arge animal.A hippo weighs four tons.Its stomachis seven meters long,it eats only plants.A hippo is a mammal,but,itspends a lot of time in the water.11111在白天，它睡在河边或睡在湖边，有时，它醒来，然后，它去水底下，得到一些植物当做美餐，它能够闭上鼻子，在水底下呆十分钟，它的耳朵、眼睛和鼻子，都在它头上高的地方。它能够停留它的身体在水底下，只有它的耳朵、眼睛、鼻子在水上面，然后它可以呼吸空气。During the day,it sleeps

6、beside a river or a lake.Sometimes,it wakesup.Then it goes under the water to get some plants for food.It can closeits 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,onlyits ears,eyes and nose above the water,then it

7、 can breathe the air.在晚上，河马走在陆地上，而且，寻找食物。它从不去远离水的地方At night,hippo walks on the land and looks for food.It never goes veryfar from the water.一个小河马，经常站立在妈妈的背上，妈妈在水底下寻找食物，小河马骑在她的背上，在水上。A baby hippo often stands on its mothers back,the mother looks for foodunder the water,the baby hippo rides on her bac

8、k above the water.第一单元 第五课海豚 The Dolphin海豚会说话吗可能它们不会用语言说话，但是它们可以用声音说话，它们用声音来表达它们的感情。Can dolphins talk Maybe they cant talk with words,but they can talkwith sounds.They show their feelings with sounds.海豚成群结队的去旅行。我们把一群鱼叫做一所学校，它们不学习，但是它们一起旅行，海豚是哺乳动物，不是鱼，但是它们在学校一起游泳。Dolphins travel in a group.We call a

9、group of fish“a school”.Theydont study,but theytravel together.Dolphins are mammals,not fish,but they swim together in the school.海豚跟在学校里其他的海豚说话。它们给信息，它们说当在它们高兴或者伤心或者害怕的时候，它们说”欢迎”当一只海豚回到学校的时候，它们玩的时候说话。Dolphins talk to the other dolphins in the school.They give information,22222they tell when they ar

10、e happy or sad or afraid,they say“welcome”whena dolphin comes back to the school,they talk when they play.它们在水上面弄出一些声音。它们在水下面弄出更多的声响。人们不能听到这些声音，因为，声音很大很大，科学家录出声音的磁带和研究磁带。They make a few sounds above water.They make many more sounds under water.People cant hear these sounds because the sounds are ver

11、y very high.Scientists make tapes of sounds and study these tapes.有时人们抓到海豚放在很大的水族馆（一个水族馆是个鱼的动物园），人们看演出能够看见海豚。海豚不喜欢远离水族馆里面它们的学校，它们很伤心也很孤独。Sometimes people catch dolphins for a large aquarium(an aquarium is azoo for fish”.People can watch dolphins in a show.Dolphins dont liketo be away from their scho

12、ol in the aquarium.They are very sad and lonely.有很多关于海豚的故事，它们帮助过人们。有时它们救命某人生命，海豚的肉很好吃，但是人们不喜欢杀死海豚。它们说海豚带来好运气，很多人相信这个。There are many stories about dolphins.They help people.Sometimes theysave somebodys life.Dolphin meat is very good,but people dont liketo kill dolphins.They say dolphins bring good lu

13、ck,many people believethis.二单元 第一课我们为什么打哈欠Why do we yawn熊打哈欠，骆驼打哈欠，很多哺乳动物也打哈欠。我们为什么要打哈欠实际上没有一个人知道答案。Bears yawn,camels yawn,most mammals yawn.Why do we yawn.No one reallyknows the answer.我们知道每一个人打哈欠的方法都是一样的，首先你慢慢的张开嘴巴，你的嘴巴继续张开5秒钟，然后你很快的闭上你的嘴巴。We know that everyone yawns in the same way.First you open

14、 your mouthslowly.Your mouth stays open for about five minutes,then you close yourmouth quickly.33333我们知道打哈欠是有传染性的或者易传染。当你看到有人打哈欠的时候，你也会打哈欠，很多人说他们打哈欠是因为很无聊或者很累。这可能是真的，然而我们知道当人们兴奋或者紧张不安的时候他们也会打哈欠，参加奥运会跑步项目的运动员，比如说 在赛跑之前运动员经常会打哈欠，为什么呢We also know that,yawning is contagious or catching.When you see som

15、eoneyawn,you also yawn,many people say that they yawn because they are verybored,or tired.This might be true.However we know that people also yawn,when they are excited or nervous,Olympic runners,for example,often yawnbefore a race.Why is that许多科学家认为打哈欠让你更加警觉。当你打哈欠时，你呼吸更深，你还伸展你脸部和脖子上的肌肉。可能这让你感觉更加警觉。

16、Some scientists believe that yawning makes you more a alert,when youyawn,you breathe moredeeply,you alsostretch your musclein your faceand your neck.Maybe this makes you feel more alert.科学家不花费时间研究打哈欠。那可能因为打哈欠不会伤害人，它只是我们做的某事。Scientists do not spend time studying yawning,that is probably becauseyawnin

17、g does not hurt.It is just something we do.第二单元 第二课为什么人们会大笑Why do people laugh你每天会大笑吗大多数人会这样做，科学家说这些人笑的次数大约一天17次，那是很多笑声。Do you laugh everyday Most people do.Scientists say that people laughabout 17 times a day.That is a lot of laughter.44444在印度，有几百个笑声的俱乐部，在这些俱乐部里的人，每天早晨都聚集在一起。首先，他们伸展他们的手，在他们的头上面，然后，

18、他们假装大笑，很快地每一个人都自然地大笑起来，人们说他们一起大笑之后感觉很好。In India,there arehundreds of laughter club.The peoplein these clubsget together every morning.First,they stretch their hands above theirheads.Then,they pretend to laugh.Soon everyone is laughing naturally.People say that they feel good after laughing together.

19、科学家相信笑对你有好处，为什么呢首先，笑是好的运动，当你笑的时候，你锻炼了你身体上的好多肌肉，科学家说那个100个笑相当于跑步10分钟，当你笑的时候，你也深深地呼吸，这帮助你放松，那也对你有好处。Scientists believe that laughter is good for you,why For one thing,laughter is good exercise.When you laugh,you exercise muscles in yourbody.Scientists say that one hundred laughs equal ten minutes of r

20、unning.When you laugh,you also breathe deeply.This helps you relax.That isgood for you,too.为什么我们笑那是个难回答的问题，我们知道人们一群的时候更经常大笑，当他们独自一人的时候，他们不经常大笑，很多科学家相信我们利用笑联系其他的人，笑帮助我们感觉到我属于这一群人里的一部分.Why do we laugh That is a hard question to answer.We know that peoplelaugh more often in a group.They dont laugh very often when they arealone.Many scientists believe that we use laughter to connect to otherpeople.Laughter helps us feel part of a group.在英国，人们说笑声是最好的药，一些人认为笑声帮助病人治好，你也这样认为吗55555