【正文】 had been too expensive for the average person, then there never would have been such serious pollution problems in every major American , there would be no need to rehabilitate our cities, because large numbers of people would never have left them for the , if the price had been set at ten dollars a gallon, there would have been enough gasoline reserves to last for , the low price of gas helped to exhaust the supply and create overdependence upon foreign sources of B People used to think that the Mississippi was too big to be today it is in the past half century or so hundreds of factories have been built on the banks of the production has increased, so has the amount of harmful waste been discharged into it by the day, thousands of tons of industrial waste are poured into the many places the water can no longer be safely used for drinking or and fish have been killed off in large numbers by water New York paper reported on February 8, 1972, “The Mississippi has now been made so dirty that swimming and fishing in it are almost out of the question.” can’t have gone to America, for I saw her yesterday in the governments of these countries must take strong measures to bring population pletely under old couple should have applied for a number of traveler’s checks so that they needn’t have carried so much cash with them while travelling around the is so famous an artist that his paintings should all be kept in such paces as art galleries or lack of experience, the young doctor didn’t take immediate action, which caused the death of the wanted to show in some way how much she cared about him and his president made a speech to the effect that the state would preserve its should exercise their imagination and add art to their Queen wasn’t an entirely successful music might not have been right for the theme of the actress might not have been quite right for her role as a queen,.The director could have organized the plot more actor’s role ought to have been producer might not have had enough time to supervise the may not have had enough money to make a truly successful it was still a fine 5 AA National Park is an area where natural scenery and wildlife is protected by law to preserve them for future is only recently that man has realized that he must make a positive effort if many species of wildlife and areas of great beauty are not to disappear are many kinds of areas of conservation and their central priorities may differ the ., a national park such as Yellowstone safeguards natural features and wildlife in a way that will contribute to public Africa generally, the chief purpose is the preservation of the remnants of the great herds of animals which once wandered around the Parks depend on tourists for ine but the animals must remain Parks may be small or large, privately or government B We are trying to decide where to go on our vacation this usually go to Lake Arrowhead for a couple of weeks, but we’d like to go somewhere else this ’re tired of doing the same thing summer after friends of ours suggested that we go to would be wonderful!I am sure we’d enjoy a trip like that, but of course it’s out of the the first place, it would be terribly expensive, and in the second place, there wouldn’t be enough a matter of a fact, if we wanted to plan a trip like that, it might be advisable to stay home this summer and not go any ’s one way we could begin to save money for next year’s , if we were to stay here, I could offer to work instead of taking two weeks off。then maybe my boss would remend that I be given four weeks’ vacation next summer instead of two dentistdecaysiliconcolonyvaguedialslotdirectorytelemunicationpriority register conservationenterprisecanyongraze devastateicalrangerprecipicefatalstickybristledigitdepositacronym deliveryregisterwildernessenterpriselumberjack romanticgeyserwaterfallmeadowgeology backpackerconcessiongrizzlymotelspoutTranslation headmaster plays an important role in the effective administration of is my mother who has the final say in family , microbiology in particular, had fascinated him from his earliest student she said anything that appeals to you especially? such plicated conditions, not one can tell who will win the next is 100 pounds。非常感謝。我很擔(dān)心。Ⅴ.Dear Sir, Have you received my application and the supporting materials? I sent them via airmail three weeks you let me know when you are going to review the application materials and make you decision? Your help will be greatly yours, John Smith Unit 6 Part Ⅰ Text Exercises Ⅰ. .Ⅱ. the character of Ronald McDonald most of Arizona and a portion of Southern California of the standard events as many of the munity hospitals as possible a difference to some “down time” restrictions on personnel with the issue immediately germs from one patient to another the rules one’s way home to the medical equipment ’s request Ⅲ. .Ⅳ. with ’t .Ⅴ.Passage 1 1—4 BACD Passage 2 1—4 CCAD Ⅵ. school/go to school 。那真是個(gè)好主意。只有讓時(shí)間來回答。，汽車不僅是一種便利，而且是一種必需。，汽車易于使友誼（保持）疏遠(yuǎn)，（從而）有助于鄰里關(guān)系 的淡化和遠(yuǎn)離家去享受悠閑/安逸的活動(dòng)。，但是每當(dāng)駕車者經(jīng)過加油站時(shí)，有一個(gè)問題總會(huì)浮上心頭，那就是汽油漲價(jià)。 節(jié)，但諸如美國(guó)、澳大利亞等國(guó)家都在5月的第二個(gè)星期日慶祝母親節(jié)。Ⅴ.Dear Sir, I am very eager to enter the Graduate School of your University next fall as a in would appreciate it very much if you would send me a graduate catalog of your university, and also a set of application forms for you for your kind yours, John SmithTest Yourself(for unit 1—4)Part Ⅱ Vocabulary and Structure Section A Section B on Section C the rain stopped notice the difference between the two notes don’t think he will/I don’t think so low to be heard clearly brought two more bottles of water do you suppose/think have misunderstood him ’s how pride leads one to failure may have left home already work to be finished in one day Part Ⅲ Reading 1—5 CBBCC 6—10 BBADA