【正文】 . I’ ve e to your tim e to fi nd out about the presentday Ol ym pi c Gam es because I know that i n 2020 they were hel d i n m y hom el and. May I ask you som e questi ons about them odern O l ym pi cs? L: Good heavens! Have real y e from so l ong ago? But of course you can ask any questi ons you li ke. What woul d you li ke to know? P: H ow often do you hol d your Gam es? L: Every four years. There are two m ai n sets of Gam es—the Wi nter and the Summ er O l ym pi cs, and both are hel d every four years on a regul ar basi s. The Wi nter O l ym 。就是說，購買這臺儀器回來，不斷地對牛奶樣品進行三聚氰胺檢測，只需人工，無需額外的費用。目前，市場上的拉曼光譜儀大多是便攜式拉曼光譜儀，便攜式的特點是，攜帶方便，檢測人員可以隨身攜帶，在現(xiàn)場、超市等可以隨時抽樣檢測，不僅可以提高工作效率，還具有實時檢測樣品的情況。fancy styl e popul ar in those days. It was al so a treasure decorated with gol d and jewel s, which tok the country’s best artists about ten years to m ake. In fact, the room was not m ade to be a gi ft. It was desi gned for the pal ace of Fredri ck I. However, the next Ki ng of Prusi a, Fredrick Wi li am I, to whom the am ber room bel onged, deci ded not to keep i t. In 1716 he gave i t to Peter the Great. In return, the Czar sent hi m a troop of hi s best sol di ers. So the Am ber Room becam e part of the Czar’s winter pal ace in St Petersburg. About four metres l ong, the room served as a smal reception hal for important vi stors. Later, Catheri ne Ⅱ had the Am ber Rom moved to a pal ace outsi de St Petersburg where she spent her summ ers. She tol d her arti sts to add m ore detai ls to it. In 1770 the room was pl eted the way she wanted. Alm ost si x hundred candl es li t the room , and i ts m i rors and pictures shone l i ke gol d. Sadl y, al though the Am ber Rom was si dered one of the wonders of the worl d, i t i s now mi ssi ng. In Septem ber 1941, the N azi arm y was near St Petersburg. Thi s was atim e when the two countri es were at war. Before the Nazi s coul d get to the summ er palace, the Russi ans were abl e to remove som e furni tures and sm al l art objects from the Am ber Room. H owever, som e of the Nazi s secretly stol e the room i tsel f. In l ess than two days 100000 pi eces were put i nsi de twentyseven wooden boxes. There i s no doubt that the boxes were then put on a train for Koni gsberg, whi ch was at a ti me a Germ an ci ty on the Bal ti c Sea. After that, what happened to the Am ber Room rem ai ns a m ystery. Recentl y, the Russi ans and Germans have buil t a new Am ber Room at the summ er pal ace. By studyi ng ol d photos of the form er Am ber room , they have m ade the new one l ooke li ke the ol d one. In 2020 it was ready for the peopl e of St Petersburg when they cel ebrated the 300th bi thday of thei r city. A fact of an opi ni on What i s a fact? Is i t som ethi ng that peopl e bel i eve? N o. A fact i s anythi ng that can be proved. For exam pl e, it can be proved that Chi na has m ore peopl e than any other country in the worl d. Thi s is a fact. Then what is an opi ni on? An opi ni on i s what som eone beli eves is true but has not been proved. So an opinoion is not good evidence in a trail. For exampl e, it is an opinion if you say ―Cats are better pets than dogs‖. It may be true, but it is difficult to prove. Some peopl e may not agree with this opinion but they al so cannot prove that they are ri ght. In a trai l, a judge m ust deci de whi ch eyewi tnesses to beli eve and whi ch not to bel i eve. The judge does not consi der what each eyewi tnes l ooks li ke or where that person l ives or works. H e/She onl y cares about whether the eyewi tnes has gi ven true i nform ati on, whi ch m ust be facts rather than opi ni ons. This ki nd of i nform ati on i s cal l ed evi dence. Bi g Feng to the rescue H is friends and famil y cal him ―Big Feng‖ because he is bery tal l and pl ayed basketbal as a young man. But he i s al so bi g i n a di fferent way — he fights hard to protect China’s past. H is real name is Feng Jicai and he has written many novels about l ife in China. Several years ago, however, he put down hi s pen for a whi l e and began to protect the cltural reli cs i n Ti anji n, where he li ves. O nce som eon asked him why he no l onger wrote. H e repli ed that at the m om ent he fel t protecti ng cul tural reli cs was m ore i mportant. Feng l oves hi s hom etown. H e bel i eves that ol d thi ngs m ust be gi ven a pl ave next to new thi ns, or peopl e wil l soon fet ther great past. H e does not m ake speeches to get others to hel p hi m i n hi s projects. Instead he goes out and does what he can hi m esel f. If others fol ow him , so much the beter. O ne of hi s bi ggest projects was to protect the ol dest street i n Ti anji n. Al ong that street som e shops had done busi ness for seven hundred years. Althought the city governm ent rebui l t thi s street, they di d save i ts ol dest bui l di ng. Another project was m ore successful: he persuaded the ci ty governm ent to buy som e l and in the centre of the ci ty so i t coul d not be sol d for busi neses. This area i s very im protant for the hi story of Ti anji n. It was here that the ci ty was first buil t during the Song Dynasty. Later m any treasures were found here. To Feng, di gi ng down i n to the earth i s li ke readi ng page after page of a book. Each dynasty found i n the earth i s li ke an i nteresting story. N ot l ong ago he and other wri ters and artists took photos of the ol d parts of Tianji n. The photos were put i nto a book whi ch was very popul ar. The m oney from the book hel ps hi s prjects. Once, and ol d m an asked Feng to si gn a book for hi m, sayi ng he woul d gi ve i t to hi s grandson who was not yet born. Feng was gl ad to do i t he knows that he past i s not onl y for us to enjoy but al so for the chil dren of the future. Unit 2 An i ntervi ew Pausani as, who was a Greek wri ter about 2020 year ago, has e on a m agi cal journey on March 18th , 2020 to fi nd out about the presentday Ol ym pi c Gam