【正文】 s pilot has t o pedal har d t o get it int o t he air . Af t er M r Wim penny had t he plane built , it was t ested t horoughly. I n 1961, it was t he f ir st m an power ed air cr af t o f ly half a m ile. While being f lown by a cham pion am at eur cyclist in 1963, t he plane cr ashed on an air field. Since t hen, M r Wim penny has had it r ebuilt . He has had t he lengt h of t he wings incr eased so t hat hey now m eas ur e 93 f eet alm ost as long as t hose of a Dakot a. M any people have shown int er est in t his new and unusual sport . But t hough air cyc list s may lear n how t o f ly over shor t dist ances, and m ay, eventualy, even get across the English Channel, it is doubt ful whet her t hey wil ever cycle acr oss the At lant ic. Lesson67 Volcanoes 火山 Har oun Tazief f t he Polish scient ist , has spent his lif e t ime st udying act ive volcanoes and deep caves in al par t s of t he wor ld. I n 1948, he went t o lake Kivu in t he Congo t o observe a new volcano which he lat er named Kit ur o. Tazieff was able t o set up his cam p very close t o t he volcano while it was er upt ing v iolent ly. Though he managed t o t ake a num ber of br ilant phot ogr aphs, he could not st ay near t he volcano f or ver y long. He not iced t hat a r iver of liquid r ock was ing t owar ds him . I t hreat ened t o sur ound him pletely, but Tazief f m anaged t o escape just in t im e. He wait ed unt il t he volcano became quiet and he was able t o r etur n t wo days lat er . This t im e, he m anaged t o clim b int o t he m outh of Kit ur o so t hat he could t ake phot ogr aphs and m easure t emperat ures. Tazief f has of ten r isked his lif e in t his way. He has been able t o t ell us m or e about act ive volcanoes t han any m an alive. Lesson68 Per si t ent 糾 纏不休 I crossed t he str eet t o avoid m eeting him , but he saw m e and came r uning t owar ds m e. I t was no use pr et ending t hat Ihad not seen him , so I waved t o him . Inever enjoy meet ing Bert Dykes. He never has anything t o do. No m at t er how busy you are, he always insist s on ing wit h you. I had t o t hink of a way of preventing him f r om f olowing m e ar ound al m or ning. 39。 No, not at al, 39。m going to the dentist.39。J ust one mor e t hing, M r Eam es. Let us suppose t hat a child suddenly cr osses t he r oad in f r ont of you. As soon as I t ap on t he window, I want t he car t o be stopped im mediat ely. 39。s f ishing, or eight hour s in a cinem a seeing t he same f ilm over and over again, is usualy as f ar as t hey get. They have al been put t o shame by a boy who, while playing t r uant , t r avelled 1600 m iles. He hit ch hiked t o Dover and, t owards evening, went int o a boat o f ind som ewher e t o sleep. When he woke up next m orning, he discover ed that t he boat had, in t he m eantim e, t r avelled t o Calais. No one not iced t he boy as he cr ept of f. Fr om t her e, he hit ch hiked t o Par is in a lor r y. The dr iver gave him a f ew biscuit s and a cup of cof ee and lef t him just outside t he cit y. The nex t car t he boy st oped did not t ake him int o t he cent re of Paris as he hoped it would, but t o Perpignan on t he Fr enchSpanish border . There he was picked up by a policem an and sent back t o England by t he local aut horit ies. He has sur ely set up a r ecor d for t he thousands of boys who dr eam of evading school. Lesson74 Out of t he lim elight 舞 臺之外 An ancient bus st opped by a dr y r iver bed and a par t y of f amous actor s and act resses got of f . Dr essed in dar k glasses and old clot hes, t hey had t aken special pr ecautions so t hat no one should r ecognize t hem. But as t hey soon discover ed, disguises can somet imes be t oo per fect. 39。 M eanwhile, t wo ot her act ors, Rockwal Slinger and M er lin Gr eeves, had car ied t wo lar ge food basket s t o a shady spot under some t rees. When t hey had al m ade t hemselves f ort able, a st ranger appeared. He looked very angry. 39。 don39。 SOS39。J um bo m ust weigh a f ew t ons,39。 Hul lo, Elizabet h,39。 Lesson66 Sweet as honey! 像蜜一樣甜！ The Hat held Puf fin is a m oder n aer o plane, but it s designer , M r J ohn Wim penny, is f inding it dif f icult t o get it of f t he gr ound. The r eason f or t his is t hat his plane is also a bicycle. I t s pilot has t o pedal har d t o get it int o t he air . Af t er M r Wim penny had t he plane built , it was t ested t horoughly. I n 1961, it was t he f ir st m an power ed air cr af t o f ly half a m ile. While being f lown by a cham pion am at eur cyclist in 1963, t he plane cr ashed on an air field. Since t hen, M r Wim penny has had it r ebuilt . He has had t he lengt h of t he wings incr eased so t hat hey now m easur e 93 f eet alm ost as long as t hose of a Dakot a. M any people have shown i t er est in t his new and unusual spor t . But t hough air cyclist s m ay lear n how t o f ly over shor t dist ances, and m ay, eventualy, even get acr oss t he English Channel, it is doubt f ul whet her t hey wil l ever cycle acr os t he At lant ic. Lesson67 Volcanoes 火山 Har oun Tazieff t he Polish scientist , has spent his lif e t im e st udying active volcanoes and deep caves in al par t s of t he wor ld. I n 1948, he went t o lake Kivu in t he Congo t o observ e a new volcano which he lat er nam ed Kit ur o. Tazieff was able t o set up his cam p ver y close t o t he volcano while it was er upt ing violent ly. Though he m anaged t o t ake a num ber of bril iant phot ographs, he could not st ay near t he volcano f or ver y long. He not iced t hat a r iver of liquid r ock was ing t owar ds him . I t hr eat ened t o sur ound him plet ely, but Tazief f m anaged t o escape just in t im e. He wait ed unt il t he volcano becam e quiet and he was able t o r et ur n t wo days lat er . This t im e, he m anaged t o clim b int o t he m out