某植物园改造工程施工组织设计(编辑修改稿)内容摘要:

have r eceived a r adi o message. The fi rst mesage is expect ed to ar ri ve at 7 o39。 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 她并不觉得好笑 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。 s cl osest fr iends asked him to make a speech at a weddi ng recept ion. Thi s i s the sort of t hi ng that Geoff rey l oves. He prepared t he speech car ef ull y and went t o t he weddi ng wit h Jenny. He had incl uded a l arge number of f unny st ori es i n t he speech and, of cour se, it was a gr eat succes. As soon as he had f ini shed, Jenny tol d him she want ed to go home. Geoff rey was a li tl e disappoi nted by t hi s but he di d as his daught er asked. On the way home, he asked Jenny i f she had enjoyed the speech. To his surpr ise, she sai d she hadn39。 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 海峡隧道 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 小象对警察 Last Chri st mas, t he ci rcus owner, Jimm y Gates, decided t o take some present s to a chi ldr en39。 s hospit al . Dressed up as Fat her Chr istmas and acpanied by a 39。 guar d of honour 39。 of six pr ety gir ls, he set off down t he main st reet of t he ci ty ri di ng a baby elephant cal led Jumbo. He, shoul d have known that the poli ce woul d never al ow t his sort of thi ng. A pol ice man approached Jimmy and tol d him he ought t o have gone along a si de st reet as Jumbo was hol di ng up the t raf fi c. Though Jimmy agr eed to go at once, Jum bo r ef used t o m ove. Fi ft een pol icemen had t o push ver y har d t o get him off t he mai n st r et. The poli ce had a di f i cult t im e, but they wer e m ost am used. 39。 Jum bo m ust wei gh a few t ons, 39。 sai d a pol i ceman aft er war ds, 39。 so i t was fort unat e t ha t we di dn39。 t have t o car ry hi m. Of cour se, we should ar r est hi m, but as he has a good r ecor d, we shal l l et him off t his t im e.39。 Lesson66 Sweet as honey! 像蜜一样甜。 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 co。
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