北师大版六年级下册数学教案(编辑修改稿)

北师大版六年级下册数学教案(编辑修改稿)内容摘要：

si gnal to m y team m ates i n puter languages to give m e the bal when I am open and have a good shot for a goal . My fi rat footbal peti ti on was i n N agoya , Japan several years ago . Last year our team went to Seattl e , Washi ngton i n the won tsecong pl ace . Personal y , I thi nk the team that won fi rsy pl ace cheated . They had devel oped a new type of program just before the peti ti on. So we need to encourage our programer to i m prove our i ntel i gence are determi ned to create an even better system . In a way our programm et i s li ke our coach. She program s us wi th m oves to use i f a new sitati on ari ses. In thi s way I can make up new moves using my “artifical intelligence “. I would really like to play against a human team,for I have been programmed to act just like them . After all,with the help of my electronic brain which never fets anything ,using my intelligence is what I’m all about! TH E SPO RTIN G RO BO T My nam e is H ua Fei and I am a sporti ng robot of the 23rd century. I am an expert at hi gh flyi ng exerci ses. I jum p from spaceshi p and as I fal I turn, di ve, circl e and dance unti l I softl y l and as close as I can to the fi ni shi ng li ne. Robot peti ti ons i n the 23rd century are truly a popul ar sport. Fans from al l over Chi na watch thei r handhel d TVs when a peti ti on es on. Last tim e I l ook part i n the 78th Ol ym pi c on a fl yi ng i sl and above Brussel s i n the sky. I won the si ver medal for my perform ance . This year I had the honour to be chosen again . I wanted to mm et robots from other countyi es and expl ore i des about our ower , m y programm er fel l il l the week before we were goi ng to l eave . It was very pai nful for her and I fel t very fri ghtened. I no l onger fel t so confi dent that I woul d wi n. The day of the peti ti on was rather coul d for m y l egs and m y speci al oi l began to fteeze. I paused before I jum ped from the starting pl ace on a l i tl e spaceshi p but then I began m y perform ance. At the correct m om ent I tri ed to open m y parachute but there was a probl em . It onl y opened a l ittl e .In stead of fl yi ng softly to earth I began to fal faster and faster so that I coul d not turn , dive, ci rcl e or heart stopped beati ng as I l anded heavi l y on a m ountai n covered wi th snow. Thi s is why I am wri ti ng to you from m y hospital bed wi th two broken l egs and a fragi l e head. I di d not wi n anything at the O l ym pi c after al . I need the factory to bui l d m e two new l egs and an even bi gger head. Then I wil be abl e to pete once more . Let’s hope foe greater sucess in the next Olympics! Uni t 4 (1) H ow Daisy l earned to hel p wil dli fe Dai sy had al ways longed to hel p endangered speci es of wil dli fe. O ne day she woke up and found a fl ying carpet by her bed. “Where do you want to go?”it asked. Daiasy responded immediately.“I’d like to see some endangered wildlife,”she said.“please take me to a distant land where I can find the animal that gave fur to make this sweater. ”At once the carpet flew away and took her to Tibet. There Daisy saw an antelope looking sad. It said,“We are being killed for the wool beneath our stomachs. Our fur is being used to make sweaters for people like you . As a reasult,we are now an endangered species.”At that Daisy cried,“I’m sorry I didn’t know that. I wonder what is being done to help you. Flying carpet,please show me a place where there’s some wildlife protection.” The fl yi ng carpet travel ed so fast that next mi nute they were i n Zim babwe. Dai sy turned around and found that she was bei ng watched by an elephant.“H ave you e to take my photo?”it asked. In relief Daisy burst into laughter. “Don’t laugh,”said the elephant,“We used to be an endangered speci es. Farm ers hunted us without m ercy. They sai d we destroyed thei r farms, and m oney from touri sts only went to the l arge tour pani es. So the governm ent deci ded to hel p. They al lowed touri sts to hunt onl y a certai n num ber of ani mal s i f they pai d the farm ow the farm ers are happy and our num bers are i ncreasi ng. So good thi ngs are bei ng done here to save l ocal wildlife. ” Daisy smiled.“That’s good news. It shows the importance of wildlife protection,but I’d like to help as the WWF suggests.”The carpet Rose agai nst and alm ost at once they were i n a thi ck rainforest. A m onkey Watched them as it rubbed itself. “What are you doing?”asked Daisy. “I’m protecting myself from mosquitoes,”it replied. “When I fi nd a m il i pede i nsect, I rub i t over m y body. It contai ns a powerful drug whi ch affect m osqui toes. You shoul d pay m ore attenti on to the rai nforest where I l i ve and appreci ate how the animals live together. No rainforest,no animals,no drugs.” Daisy was amazed.“Flying carpet, pl ease take m e home so I can tel WWF and we can begin producing this new ,please e and help,”The monkey agreed. The carpet flew hom e. As they l anded, thi ngs begi n to di sappear. Two m i nutes l ater everythi ng had gonethe m onkey, too. So Dai sy was not abl e to m ake her new drug. But what an experience!She had learned so much!And there was always WWF …… (2)Anim al exti ncti on Many anim al s have di sappeared during the l ong hi story of the earth. The m ost fam ous of these anim al s are di nosaurs. They l ived on the earth tens m il i on of years ago, long before hum ans cam e into bei ng and thei r future seem ed secure at that ti m e. There were m any di fferent ki nds of di nosaur and a num ber of them used to l i ve i n chi na. The eggs of twentyfi ve species have been found i n Xi xi a County,N anyang,H enan provi ot l ong ago a rare new speci es of birdl i ke di nosaur was di scovered i n Country,l i aoni ng Provi nce. When sci enti sts i nspected the bones, they were surpri sed to fi nd that these di nosaurs coul d not onl y run l i ke the others but al so clim b trees. They l earned thi s from t。