【正文】 told him he ought to have gone along a sidestreet as Jumbo was holding up the traffic. Though Jimmy agreed to go at once, Jumbo refused to move. Fifteen policemen had to push very hard to get him off the main street. The police had a difficult time, but they were most amused. 39。Jumbo must weigh a few tons,39。 said a policeman afterwards, 39。so it was fortunate that we didn39。t have to carry him. Of course, we should arrest him, but as he has a good record, we shall let him off this time.39。 Lesson66 Sweet as honey! 像蜜一樣甜！ The Hatheld Puffin is a modern aeroplane, but its designer, Mr John Wimpenny, is finding it difficult to get it off the ground. The reason for this is that this plane is also a bicycle. Its pilot has to pedal hard to get it into the air. After Mr Wimpenny had the plane built, it was tested thoroughly. In 1961, it was the first manpowered aircraft to fly half a mile. While being flown by a champion amateur cyclist in 1963, the plane crashed on an airfield. Since then, Mr Wimpenny has had it rebuilt. He has had the length of the wings increased so that they now measure 93 feet almost as long as those of a Dakota. Many people have shown interest in this new and unusual sport. But though air cyclists may learn how to fly over short distances, and may, eventually, even get across the English Channel, it is doubtful whether they will ever cycle across the Atlantic. Lesson67 Volcanoes 火山 Haroun Tazieff the Polish scientist, has spent his lifetime studying active volcanoes and deep caves in all parts of the world. In 1948, he went to lake Kivu in the Congo to observe a new volcano which he later named Kituro. Tazieff was able to set up his camp very close to the volcano while it was erupting violently. Though he managed to take a number of brilliant photographs, he could not stay near the volcano for very long. He noticed that a river of liquid rock was ing towards him. It threatened to surround him pletely, but Tazieff managed to escape just in time. He waited until the volcano became quiet and he was able 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。Hullo, Bert,39。 I said. 39。Fancy meeting you here !39。 39。Hullo, Elizabeth,39。 Bert answered. 39。 I was just wondering how to spend the morninguntil I saw you. You39。re not busy doing anything, are you ?39。 39。 No, not at all,39。 I answered.39。 I39。m going to.. .39。 39。Would you mind my ing with you ?39。 he asked, before I had finished speaking. ‘ Not at all,39。 I lied, 39。but I39。m going to the dentist.39。 39。 Then I39。ll e with you,39。 he answered.39。 There39。s always plenty to read in the 39。waiting room !39。 lesson69 But not murder! 并非謀 t our i st shave been pi cki ng leaves and cutt ing t hei r nam es on the t reet runk. So far , not one of them has been st ruck down by sudden death! Leson59 In or out ？ 進(jìn)來還是出去？ Our dog, Rex, used to si t out si de our f ront gate and bark. Ever y t ime he want ed to e into the garden he would bar k unti l s omeone opened the gate. As t he nei ghbours pl ai ned of the noise, m y husband spent weeks t rai ni ng him to pres hi s paw on t he latch t o let him sel f i n. Rex soon becam e an expert at openi ng the gate. However , when I was goi ng out shopping l ast week, I noti ced hi m i n t he gar den near the gate. This t ime he was bar king so that som eone woul d let him out ! Si nce then, he has devel oped another bad habit . As soon as he opens the gate f rom the outsi de, he es into the garden and wait s unt il t he gat e shut s. Then he sit s and bar ks unt il som eone l et s him out. Af ter thi s he imm edi ately l ets him sel f in and begins bar king again. Yest erday my husband r emoved the gate and Rex got so annoyed we have not seen hi m si nce. Leson60 The fut ure 卜算未來 At a vi l age fair , I decided t o visit a f ort une tel er cal led Madam Bel li nsky. I went i nto her tent and she t old m e to si t down. Af ter I had given her some m oney, she l ooked i nto a cr yst al bal and sai d: 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。 As soon as I went out side, I f ot al about Madam Bel li nsky because my wif e hurr ied t owar ds me. 39。Wher e have you been hidi ng ?39。 she asked im pat ientl y. 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。 As she wal ked away, I fol lowed her out of the f air . Lesson61 Trouble wi t h the Hubble 哈勃望遠(yuǎn)鏡的困境 I n f utur e, ast ronauts wi l be r equi red t o descend fr om a spaceship whi le it is st il i n space and to retur n t o it . The abi l i t y to do t his wi l be necessar y i n fut ure f li ght s to distant pl a s. Scienti st s are now tr yi ng to discover if t his i s possible. The spaceshi p Astr a which l ef t the eart h a short ti me ago, wil l be tr avel ing t hree hundred mi les i nt o space. At a cer tai n poi nt, t he Ast ra wil l st op for a short ti me and an astr onaut wil l at tempt t o leave the stat ionar y spaceshi p and then r eturn to i t. We shal l not know whether the exper im ent has been successf ul unt il we have r