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銆€銆€An Absent-minded Professor

銆€銆€Professor Smith lived alone.He was very absent-minded.He used to __1__ the university to give a lecture and find that he had forgotten to bring his notes.Or he __2__ lose his spectacles and be unable to see the __3__.He could never find any chalk to __4__ with,and he often forgot the time and would ramble __5__ for hours because he had __6__ his watch at home.But the most __7__ thing of all about him was his __8__.His overcoat was rarely __9__,as most of the buttons were __10__.His shoes were usually untied because he had lost the laces.He __11__ his comb as well because his hair was always standing __12__,that is unless he was __13__ his battered old hat with the brim missing.His trousers were __14__ by an old tie instead of a belt.He was a chain smoker.He would smoke __15__ in class.Cigarette ash was liberally scattered over his waistcoat.

銆€銆€1.A) arrive in B) arrive at C) arrive D) arriving

銆€銆€2.A) was used to B) was accustomed to C) could D) would

銆€銆€3.A) blackboard B) floor C) door D) window

銆€銆€4.A) teach B) deliver C) write D) address

銆€銆€5.A) of B) at C) in D) on

銆€銆€6.A) put B) placed C) left D) forgotten

銆€銆€7.A) exciting B) amazing C) attractive D) delightful

銆€銆€8.A) appearance B) act C) behavior D) conduct

銆€銆€9.A) tied B) fastened C) ironed D) patched

銆€銆€10.A) losing B) falling C) missing D) hanging

銆€銆€11.A) has lost B) loses C) must have lost D) must lose

銆€銆€12.A) on end B) up C) aside D) back

銆€銆€13.A) putting on B) wearing on C) wearing D) having

銆€銆€14.A) rounded up B) stuck together C) put together D) held up

銆€銆€15.A) even B) frequently C) constantly D) continuously

銆€銆€Keys锛� BDACD CBABC CACDA

銆€銆€Highways in the United States

銆€銆€The United States is well-known for its network of major highways designed to help a driver get from one place to another in the shortest possible time. __1__ these wide modern roads are generally __2__ and well maintained,with few sharp curves and __3__ straight sections,a direct route is not always the most __4__ one. Large highways often pass __5__ scenic areas and interesting small towns. Furthermore,these highways generally __6__ large urban centers which means that they become crowded with __7__ traffic during rush hours,__8__ the "fast,direct" way becomes a very slow route. However,there is almost always another route to __9__ if you are not in a hurry. Not for from the relatively new "superhighways",there are often older,__10__ heavily traveled roads which go through the countryside. __11__ are good lane roads; others are uneven roads curving __12__ the country. These secondary routes may go up steep slopes,along hilly cliffs or down frightening hillsides to towns __13__ in deep valleys. Though these are less __14__ routes,longer and slower,they generally go to places __15__ the air is clean and the scenery is beautiful,and the driver may have a chance to get a fresh,clean view of the world.

銆€銆€1. A) Although B) But C) Since D) Because

銆€銆€2. A) uneven B) bumpy C) rough D) smooth

銆€銆€3. A) little B) much C) many D) few

銆€銆€4. A) terrible B) horrible C) tolerable D) enjoyable

銆€銆€5. A) to B) into C) at D) by

銆€銆€6. A) merge B) connect C) combine D) mix

銆€銆€7. A) busy B) small C) large D) heavy

銆€銆€8. A) when B) where C) which D) that

銆€銆€9. A) walk B) go C) take D) fix

銆€銆€10. A) more B) less C) very D) extremelyf

銆€銆€11. A) All of these B) None of these C) All roads D) Some of these

銆€銆€12. A) out of B) out C) through D) from

銆€銆€13. A) lying B) lie C) lies D) lay

銆€銆€14. A) direct B) indirect C) enjoyable D) beautiful

銆€銆€15. A) these B) which C) that D) where

銆€銆€Keys锛� ADCDD BDACB DCAAD

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銆€銆€The central problem of economics is to satisfy the people's and nation's wants.

銆€銆€The problem we are faced with is that our resources,here identified as money,are __1__. The only way we can resolve our problem is to make choices. After looking at our resources,we must examine our list of __2__ and identify the things we need immediately,those we can postpone,and __3__ we cannot afford. As individuals,we face the central problem involved in economics-deciding just how to allocate our limited our limited resources to provide __4__ with the greatest satisfaction of our wants.

銆€銆€Nations face the same problem. As a country's population ___5__,the need for more goods and services grows correspondingly. Resources necessary to production may increase,but there __6__ are enough resources to satisfy the total desires of a nation. Whether the budget meeting is taking place in the family living room,in the conference room of the corporation __7__ of directors,or in the chamber of the House of Representatives in Washington,the basic problem still exists. We need to find __8__ of allocating limited resources in order to satisfy unlimited wants.

銆€銆€A short time ago economists divided goods into two categories,free and economic. The former,like air and water,were in __9__ abundance that economists had no concern for them. After all,economics is the __10__ of scarcity and what to do about it. Today many of these "free goods" are __11__ very expensive to use. Pollution has made clean air and water expensive for producers' extra costs,and __12__ taxpayers who pay for the government's involvement in cleaning the environment.

銆€銆€In the 1990s,almost all goods are __13__. Only by effort and money __14__ obtained in the form people wish.

銆€銆€Meeting needs of people and the demands from resource available __15__ the basic activity of production. In trying to meet unlimited wants from limited economic goods,production leads to new problems in economics.

銆€銆€EXERCISE锛�

銆€銆€1. A) limited B) unlimited C) scarcity D) abundant

銆€銆€2. A) want B) problem C) wants D) resources

銆€銆€3. A) those B) some C) others D) many

銆€銆€4. A) them B) themselves C) ourselves D) ours

銆€銆€5. A) expand B) extends C) grows D) increase

銆€銆€6. A) always B) sometimes C) often D) never

銆€銆€7. A) management B) function C) board D) group

銆€銆€8. A) people B) economists C ) way D) methods

銆€銆€9. A) so B) great C) such D) such an

銆€銆€10. A) form B) study C) means D) source

銆€銆€11. A) practically B) in practice C)in reality D) practicably

銆€銆€12. A) the B) / C) for D) with

銆€銆€13. A) plentiful B) scarce C) abundant D) in full supply

銆€銆€14. A) they can be B) can they be C) they must be D) must they be

銆€銆€15. A) are led to B) leads C) lead to D) leads to

銆€銆€KEY锛�

銆€銆€A C A C C D C D C B C C B B D

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