【正文】 ble to return two days later. This time, he managed to climb into the mouth of Kituro so that he could take photographs and measure temperatures. Tazieff has often risked his life in this way. He has been able to tell us more about active volcanoes than any man alive. Lesson68 Persistent 糾纏不休 I crossed the street to avoid meeting him, but he saw me and came running towards me. It was no use pretending that I had not seen him, so I waved to him. I never enjoy meeting Bert Dykes. He never has anything to do. No matter how busy you are, he always insists on ing with you. I had to think of a way of preventing him from following me around all morning. 39。 I said. 39。 39。 Bert answered. 39。re not busy doing anything, are you ?39。 No, not at all,39。 I39。 39。 he asked, before I had finished speaking. ‘ Not at all,39。but I39。 39。ll e with you,39。 There39。waiting room !39。A r elati on of your s is i ng to see you. She wi l be ar ri vi ng thi s evening and i ntends to stay f or a few days. The moment you leave t his t ent , you wil l get a big sur pri se. A wom an you know wel wi l r ush t owards you. She wi l speak to you and then she wi l lead you away fr om this pl ace. That i s al l. 39。Wher e have you been hidi ng ?39。Your si st er wi l l be her e in l es t han an hour and we m ust be at the stati on to meet her. We are l ate alr eady. 39。cl ock this evening. By that ti me, the Astr a wi l have been f lyi ng thr ough space f or seventeen hour s and wil l have cir cled t he ear th a gr eat m any t im es. When t he fi rst radio mesages have been r ecei ved, the r esul ts of the t ri p wi l be announced im medi ately. Leson62 Af ter t he fi re 大火之后 Fir emen had been f ight ing t he forest fi re f or near ly t hree weeks bef ore t hey coul d get i t under cont rol . A shor t ti me befor e, gr eat tr ees had cover ed the countr ysi de for mi les around. Now, sm oke sti l r ose up fr om t he warm gr ound over the desolat e hil ls. Wi nt er was i ng on and the hi l s threatened the surr oundi ng vil lages wit h dest ructi on, f or heavy rai n would not only wash away t he soi l but would cause ser ious fl oods as wel l. When t he fi re had at last been put out , the f orest author it ies ordered sever al t ons of a special type of grass seed whi ch woul d gr ow quickly. The sed was sprayed over t he ground in huge quant it ies by aeroplanes. The planes had been plant ing sed f or near ly a mont h when i t began to rain. By t hen, however , in m any pl aces t he gr as had alr eady taken root. I n place of the great tr ees whi ch had been gr owi ng t her e f or centur ies, patches of gr een had begun to appear i n t he bl ackened soi l. Leson63 She was not am used 她并不覺得好笑 Geoff rey Ham pden has a lar ge cir cl e of fr iends and is very popular at par ti es. Ever ybody admi res hi m f or hi s f ine sense of humoreverybody, t hat i s, except his six year old daughter, Jenny. Recent ly, one of Geof fr ey39。t . Geof fr ey asked her why thi s was so and she t ol d him t hat she did not li ke to see so many peopl e laughing at him! Lesson64 The Channel Tunnel 海峽隧道 In l858, a Fr ench engineer, Ai me Thome de Gam ond, ar ived i n England wit h a pl an for a t went yone mi le t unnel acr oss the Engli sh Channel. He said t hat i t would be possi bl e t o bui ld a platf orm in the cent re of t he Channe l. Thi s pl atf orm would serve as a port and a r ail way st ati on. The tunnel woul d be wel l venti lat ed if tal l chi mneys wer e buil t above sea level . In 1860, a bet ter plan was put for ward by an Engl i shm an, Wi l iam Low. He suggest ed that a doubl e rai lway t unnel shoul d be bui lt . This would sol ve the probl em of vent il at ion, for i f a tr ai n entered t his t unnel, i t woul d dr aw in fr esh ai r behind it. For tyt wo years l ater a tunnel was actual y begun. I f, at the t ime, the Br it ish had not feared i nvasion, it would have been pl eted. Recentl y, t her e has again been gr eat int er est i n the i dea of a Channel Tunnel. I f it is bui lt , i t wil l connect Br it ain t o Europe f or the f ir st t ime in hi st ory. Lesson65 Jum bo versus the pol ice 小象對警察 Last Chri st mas, t he ci rcus owner, Jimm y Gates, decided t o take some present s to a chi ldr en39。guar d of honour 39。Jum bo m ust wei gh a few t ons, 39。so i t was fort unat e t ha t we di dn39。 Lesson66 Sweet as honey! 像蜜一樣甜！ The Hat hel d Puff in i s a m oder n aer o plane, but it s desi gner, Mr John Wim penny, is f indi ng i t dif fi cul t o get it off t he gr ound. The r eason f or t his i s t hat t hi s pl ane is also a bi cycl e. I ts pil ot has t o pedal hard t o get i t i nt o t he ai r. Af ter Mr Wim penny had t he pl ane buil t, i t was test ed t hor oughl y. I n 1961, it was t he fi r st man power ed ai r cr af t t o fl y hal f a mi le. Whi le bei ng f l own by a cham pi on am ateur cycli st i n 1963, t he pl ane crashed on an ai rf iel d. Si nce t hen, Mr Wim penny has had i t r ebuil t. He has had t he l engt h of the wi ngs i ncreased so t hat t hey now m easur e 93 feetalm ost as l ong as t hose of a Dakota. Many peopl e have shown i nterest in t his new and unusual spor t. But though air cycl ists m ay learn how to f ly over shor t distances, and may, event ual ly, even get across the Engli sh Channel, it i s doubt ful whether they wi l ever cycle across the At lanti c. Lesson67 Vol canoes 火山 Har oun Tazief f the Poli sh sci ent ist, has spent hi s li fe ti me studying acti ve vol canoes and deep caves i n al part s of the wor ld. In 1948, he went t o lake Ki vu in the Congo to observe a new vol cano whi ch he later named Ki tur o. Tazief was abl e to set up his camp very cl ose t o the vol cano whi le i t was er upti ng vi olentl y. Though he managed t o t ake a number of bri l iant photogr aphs, he could not stay near the volcano for very l ong. He not iced that a r iver of l iquid rock was ing t owa