20xx高考数学知识考点精析(27讲)(编辑修改稿)

20xx高考数学知识考点精析(27讲)(编辑修改稿)内容摘要：

l band. Freddy the frog（Ⅱ） Not l ong after Freddy and the band becam e fam ous, they visi ted Bri tai n on a bri ef tour. Fans showed thei r devotion by waiti ng for hours to get ti ckets for thei r concerts . Freddy was now quite confi dent when he went i nto a concert hal l. H e enjoyed si ngi ng and al l the congratul ations afterwards! Hi s m ost exci ti ng i nvi tati on was to perform on a TV programm e cal ed “ Top of pops “. H e had to go to London, wear an expensi ve sui t and gi ve a perform ance to a TV cam era. It fel t very strange. But as soon as the program me was over, the tel ephones whi ch were i n the sam e room started ri ngi ng. Everybody was aski ng when they coul d see Freddy and hi s band agai n. They were trul y stars. Then things went wrong. Freddy and hi s band coul d not go out anywhere without bei ng fol l owed. Even when they wore sungl asses or beards peopl e recogni zed them . Fans found them even when they went into toil et. They tri ed to hi de i n the readi ng rooms of li brari es, but i t was usel es. Someone was al ways there! Thei r personal li fe was regul arl y discussed by people who di d not know them but tal ked as i f they cl ose fri ends. At l ast feeli ng very upset and sensi ti ve, Freddy and his band real ized that they m ust l eave the country before i t becam e too pai nful for them . So they l eft Bri tai n, to whi ch they were never to return, and went back to the l ake. 必修三 Uni t 1 Festi val s and cel ebrati ons Festival s and cel ebrati ons of al ki nds have been hel d everywhere si nce anci ent ti mes. Most ancient festi vals woul d cel ebrate the end of col d weather, pl anti ng i n spri ng and harvest i n autum n. Som eti mes cel ebrati ons woul d be hel d after hunters had caught anim al s. At that tim e peopl e woul d starve i f food was di fficul t to fi nd, especi al l y duri ng the col d wi nter m onths. Today’s festi val s have m any ori gi ns, som e reli gi ous, som e seasonal, and som e for speci al peopl e or events. Festi val s of the Dead Som e festi val s are hel d to honour the dead or sati sfy the ancestors, who mi ght return ei ther to help or to do harm . For the Japanese festi val O bon, peopl e shoul d go to cl ean graves and l i ght i ncense i n m em ory of their ancestors. They al so l i ght lam ps and play m usi c because they think that thi s wil l lead the ancestors back to earth. In Mexico, people cel ebrate the Day of the Dead in earl y Novemver. m obil e phones as wel as hel p wi th m edi cal operati ons. I have even been put i nto space rockets and sent to expl ore the Moon and Mars . A nyhow, m y goal i s to provi de hum ans wi th a l i fe of hi gh quali ty. I am now truly fi l ed wi th happi ness that I am a devoted fri end and hel per of the hum an race ! AN DY—TH E AN DRO ID I’m part of an an android football team . About once a year we are alowed to get together to play a game of football. I’m as bi g as a human . In fact ,I look like one the footballteam I’m a striker so I have to be able to run very fast .My puter chi ps hel p m e to mova and thi nk li ke a hum an . For exampl e , I have l earned to si gnal to my teamm ates i n puter l anguages to give m e the bal when I am open and have a good shot for a goal. My fi rat footbal l peti tion was i n N agoya , Japan several years ago .Last year our team went to Seattl e ,Washi ngton in the USA. We won tsecong pl ace . Personal ly , 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 mprove our i ntel i gence are determ i ned to create an even better system . In a way our programm et i s li ke our coach. She programs us with moves to use if a new sitation arises. In this way I can make up new moves using my “artifical intelligence “. I woul d real y li ke to pl ay agai nst a human team, for I have been programm ed to act just li ke them. After al l, wi th the help of m y el ectronic brain which never fets anything ,using my intelligence is what I’m al about! TH E SPO RTIN G RO BO T My nam e i s H ua Fei and I am a sporti ng robot of the 23rd century. I am an expert at high fl yi ng exercises. I jum p from spaceshi p and as I fal l I turn, di ve, ci rcl e and dance until I softl y l and as cl ose as I can to the fini shi ng li ne. Robot petiti 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 look 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 siver m edal for m y performance . Thi s year I had the honour to be chosen agai n . I wanted to m m et robots from other countyi es and expl ore i des about our ower ,m y programm er fel il l the week before we were going to l eave . It was very pai nful for her and I felt very fri ghtened. I no l onger fel t so confi dent that I woul d wi n. The day of the petiti on was rather coul d for m y legs 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 performance. At the corect m om ent I tri ed to open m y parachute but there was a probl em. It onl y opened a l i tl e . In stead of fl ying softly to earth I began to fal faster and faster so that I coul d not turn , di ve, ci rcl e or dance. My heart stopped beati ng as I l anded heavil y on a m ountai n covered with snow. Thi s i s 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 anythi ng at the O lym pi c after al l. I need the factory to build me two new legs and an even bigger head. Then I will be able to pete once more . Let’s hope foe greater success in the next O l ym pi cs! Unit 4 (1) H ow Dai sy l earned to hel p wi l dl ife Dai sy had al ways l onged to help endangered speci es of wi l dl i。