【正文】 綠色屏障，保護綠洲。（二）項目建設是保障武威綠洲生存與可持續(xù)發(fā)展的迫切需要石羊河流域源頭的祁連山冰川濕地及水源涵養(yǎng)林是中部綠洲工農(nóng)業(yè)生產(chǎn)和人民生活的主要水源供給區(qū)，北部防風固沙林是防治沙漠南侵，保障工農(nóng)業(yè)生產(chǎn)發(fā)展的重要綠色屏障。民勤綠洲的存亡關(guān)系河西走廊的安危，一旦民勤綠洲消失，兩大沙漠匯合，河西走廊將被阻斷并迅速消失，河西不保，必將危及全國，一旦狹長的河西走廊被攔腰斬斷，東起連云港、西至荷蘭鹿特丹的亞歐大陸橋?qū)⒚桓睂?，?nèi)地與新疆只能隔沙相望，古絲綢之路也將不復存在……這將意味著，“戈壁上的一串珍珠”河西走廊將從地圖上永遠消失，南下沙化的速度將迅速加快，沙塵暴更加肆虐，武威、金昌將最先受害，蘭州甚至華北將深受影響，整個北方大部分地區(qū)的生態(tài)安全將受到嚴重威脅。二、項目建設的必要性（一）項目建設是保障區(qū)域乃至國家生態(tài)安全的戰(zhàn)略需要武威市是中國北方抗御沙漠化的前沿陣地，是保護歐亞大陸橋暢通無阻的生態(tài)要塞。因此，必須在較短的時間內(nèi)，集中有限的物力和財力，在一些重要地區(qū)搶救性實施保護和恢復工程，盡快改變局部的生態(tài)環(huán)境，緩解由于濕地退化導致的生態(tài)問題，全面提升濕地保護能力。在武威市一些重要濕地區(qū)域及生態(tài)環(huán)境脆弱地區(qū)，由于濕地資源的過度開發(fā)和不合理利用，已經(jīng)導致了濕地的嚴重萎縮和生態(tài)退化。我國于1992年7月31日正式加入《關(guān)于特別是作為水禽棲息地的國家重要濕地公約》（簡稱《濕地公約》），并將我國濕地保護合理利用列入《中國21世紀議程》、《中國生物多樣性保護行動計劃》。濕地以其特有的美學、教育、文化、精神等功能，產(chǎn)生了宗教、民俗、音樂等獨特文化。濕地不僅是陸地上的天然蓄水庫，又是眾多珍稀瀕危野生動物，特別是水禽必須的棲息、遷徙、越冬和繁殖地。濕地與森林、海洋并稱為全球三大生態(tài)系統(tǒng)，在維護全球生態(tài)平衡、促進經(jīng)濟社會可持續(xù)發(fā)展、保障人類健康中發(fā)揮著不可替代的重要作用。主要完成人工造林15200hm2，其中水源涵養(yǎng)林4800hm護岸林1600hm庫區(qū)防護林帶1400 hm防風固沙林7400hm2；封山育林（草）10600hm2，退耕還林（草）3000hm2，退牧還（草）3500hm2項 目 投 資：，全部由國家投資項 目 效 益：項目的實施，將使武威市的濕地保護和管理能力得到較大提高，重要濕地生態(tài)系統(tǒng)、濕地生物多樣性，尤其是國家重點保護的珍稀瀕危野生動植物得到有效保護；使全社會提高對濕地重要性的認識，轉(zhuǎn)化為保護濕地的自覺行動；提供新的就業(yè)機會和拓展發(fā)展前景的養(yǎng)殖、生態(tài)旅游等相關(guān)產(chǎn)業(yè)，對當?shù)厝罕姷拿撠氈赂唬岣呔用竦纳钏?，以及地方?jīng)濟的發(fā)展起到促進作用項目建設期限： 2009—2020年。Lesson57 Can I help you, madam? 你要買什么，夫人？Lesson56 Faster than sound! 比聲音還快！The Revealer39。 I said. 39。39。 I need not remind you of that terrible tie you bought yesterday.39。t have said that,39。39。t need,39。 We mustn39。 my wife answered as she looked at herself in the mirror. I sat down on one of those modern chairs with holes in it and waited. We had been in the hat shop for half an hour and my wife was still in front of the mirror.You needn39。Do you call that a hat ?39。lesson41 Do you call that a hat? 你把那個叫帽子嗎？ if you ate more and talked less, we would both enjoy our dinner !39。 Young man,39。In despair, I asked her whether she was enjoying her dinner. she answered. I asked. 39。39。 No,39。Will you be spending your holidays abroad this year ?39。 No,39。Will you be seeing it ?39。 A new play is ing to The Globe soon,39。 Lesson40 Food and talk 進餐與交談 I am Mr John Gilbert.39。 No,39。 telephone. When he was alone, he telephoned the hospital exchange and asked for Doctor Millington. When the doctor answered the phone, Mr Gilbert said he was inquiring about a certain patient, a Mr John Gilbert. He asked if Mr Gilbert39。While John Gilbert was in hospital, he asked his doctor to tell him whether his operation had been successful, but the doctor refused to do so. The following day, the patient asked for a bedsideMy old friend, Harrison, had lived in the Mediterranean for many years before he returned to England. He had often dreamed of retiring in England and had planned to settle down in the country. He had no sooner returned than he bought a fine house and went to live there. Almost immediately he began to plain about the weather, for even though it was still summer, it rained continually and it was often bitterly cold. After so many years of sunshine, Harrison got a shock. He acted as if he had never lived in England before. In the end, it was more than he could bear. He had hardly had time to settle down when he sold the house and left the country. The dream he had had for so many years ended there. Harrison had thought of everything except the weather.. Workers will have pleted the new roads by the end of this year. By the end of next year, they will have finished work on the new stadium. The fine modern buildings have been designed by Kurt Gunter. Everybody will be watching anxiously as the new buildings go up. We are all very excited and are looking forward to the Olympic Games because they have never been held before in this country.They will also be building new roads and a special railwayline. The Games will be held just outside the capital and the whole area will be called 39。The Olympic Games will be held in our country in four years39。s mother, who swam the Channel herself when she was a girl.s father will set out with her in a small boat. Mr Hart has trained his daughter for years. Tomorrow he will be watching her anxiously as she swims the long distance to England. Erna intends to take short rests every two hours. She will have something to drink but she will not eat any solid food. Most of Erna39。Erna Hart is going to swim across the English Channel tomorrow. She is going to set out from the French coast at five o39。 car was badly damaged and easy to recognize. Shortly afterwards, the police stopped the car and both men were arrested. Stop thief! 捉賊！ amused too, because he never expected the bicycle to be found. It was stolen twenty years ago when Ted was a boy of fifteen ! from the local police. In the letter he was asked to call at the station. Ted wonderedLesson34 Quick work 破案“神速”lesson33 Out of the darkness 沖出黑暗 gave39。Lesson32 Shopping made easy 購物變得很方便Yesterday afternoon Frank Hawkins was telling me about his experiences as a young man. Frank is now the head of a very large business pany, but as a boy he used to work in a small shop. It was his job to repair bicycles and at that time he used to work fourteen hours a day. He saved money for years and in 1938 he bought a small workshop of his own. During the war Frank used to make spare parts for aeroplanes. At that time he had two helpers. By the end of the war, the small workshop had bee a large factory which employed seven hundred and twentyeight people. Frank smiled when he remembered his hard early years and the long road to success. He was still smiling when the door opened and his wife came in. She wanted him to repair their son39。t any in sight: they had all run away! The man laughed when he realized what had happened. He called out to the children and threw the ball back to the bank. Football or polo? 足球還是水球？s first passenger was a doctor who flew from Birmingham to a lonely village in the Welsh mountains. Since then, Captain Fawcett has flown passengers to many unusual places. Once he landed on the roof of a block of flats and on another occasion, he landed in a deserted car park. Captain Fawcett has just refused