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[单选题]
Jack was frustrated when he realized _______ to achieve the goal.(1分)
A
(A) how hard it would be
B
(B) how would it be hard
C
(C) very difficult it will be
D
(D) it is difficult
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A
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Snow is a subject of great interest to weather experts. They sometimes have difficulty (1)______ where, when or how much snow will (2)______. One reason is that heavy amounts of snow fall in surprisingly small areas.(3)______reason is that a small change in temperature can mean the difference between snow rain. Just what is snow, anyway? Snow is a form of frozen(4)______. It contains groups of ice particles(5)______snow crystals. These crystals grow from water droplets in cold clouds. They usually grow around dust particles.(6)______ , snow ice appear white. This is because the(7)______we see from the sun is white. Most natural materials (8)______some sunlight. This gives them their color. However, when light(9)______ from air to snow, some light is sent back, or reflected. Snow crystals have many surfaces to reflect sunlight. Yet the snow does absorb a little sunlight. It is this light that gives snow its(10)______appearance.(10分)1. A.estimate B.Estimating C.being estimated D.estimated
23. I was walking along the deserted main street of a small seaside town in the north of England looking for somewhere to make a phone call. My car had broken down outside the town and I wanted to contact the AA. The street ran parallel to the sea and was joined to it by a number of narrow side streets. Low grey clouds were drifting across the sky and there was a cold damp wind blowing off the sea which nearly threw me off my feet every time I crossed one of the side streets. It has rained in the night and water was dripping from the bare trees that lined the street. I was glad that I was wearing a thick coat.There was no sight of a call box, nor was there anyone at that early hour whom I could ask. I had thought I might find a shop open selling the Sunday papers or a milkman doing his rounds, but the town was completely dead. The only living creature I saw was a thin frightened cat which was hopelessly sniffing at some empty paper bags that had been dropped outside the fish-and-chip(炸鱼与马铃薯片) shop the night before.Then suddenly I found what I was looking for. There was a small post office, and almost hidden from sight in a dark alley next to it was the town's only public call box, which badly needed a coat of paint. I hurried forward, but stopped in astonishment when I saw through the dirty glass that it was already occupied. There was a man inside. He was very fat, and was wearing a cheap blue plastic raincoat and rubber boots. I could not see his face- he was bending forward over the phone with his enormous back pressed against the glass and did not even raise his head at the sound of my approaching footsteps.Discreetly(小心地), I remained standing a few feet away and lit a cigarette to wait my turn. It was when I threw the dead match on the ground that I noticed something bright red flowing in drops from under the call box door.(10分)23.1 According to the passage, the A(Para. 1) is most probably____.(2分)A. a hotel providing accommodations for traveling motoristB. the local police stationC. a British motoring organization that helps members when their cars break downD. an inquiry office
1. In 1637 the French philosopher-mathematician ReneDescartes predicted that it would neverBe possible to makeA machine that thinksAs humansDo. In 1950, theBritish mathematicianAndComputer pioneerAlan TuringDeclared that oneDay there wouldBeA machine thatDuplicate human intelligence in every wayAnd prove itBy passingA specialized test. In this test,AComputerAndA human hidden from view wouldBeAsked random identical questions, if theComputer were successful; the questioner wouldBe unable toDistinguish the machine from the personBy theAnswers.InspiredBy Turing's theory, the firstConference onAIConvenedAtDartmouthCollege in New Hampshire in 1956. SoonAfterwardsAnAI laboratory was startedAt Massachusetts Institute of TechnologyBy John McCarthyAnd Marvin Minsky, two of the nation's leadingAI proponents. McCarthyAlso invented theAIComputer language, Lisp;ButBy the early 1990sAI itself had notBeenAchieved. However, logic programsCalled expert systemsAllowComputers to "make,Decisions"By interpretingDataAnd selecting fromAmongAlternatives. TechniciansCan run programs used inComplex medicalDiagnosis, language translation, mineral exploration,And evenComputerDesign.MachineryCan outperform humans physically. So, too,CanComputers outperform mental functions in limitedAreas--notably in the speed of mathematicalCalculations. For example, the fastestComputersDevelopedAreAble to perform roughly 10BillionCalculations per second.But making more powerfulComputers will probably notBe the way toCreateA machineCapable of passing the Turing test.Computer programs operateAccording to set procedures, or logic steps,CalledAlgorithms (算法). InAddition, mostComputersDo serial processing: operations of recognitionAndComputationAre performed oneAtA time. TheBrain works inA mannerCalled parallel processing, performing operations simultaneously. ToAchieve simulated (模拟) parallel processing, some supercomputers haveBeen made with multiple processors to follow severalAlgorithmsAt the same time.Critics of thisApproach insist that solvingAComputationDoes not indicate understanding, somethingA person who solvedA problem would have. Human reasoning is notBased solely on rules of logic. It involves perception,Awareness, emotional preferences, values, evaluating experience, theAbility to generalizeAnd weigh options,And more. Some proponents ofA1 have, therefore, suggested thatComputers shouldBe patternedAfter the humanBrain, which essentiallyConsists ofA network of nerveCells.By the early 1990s, theClosestApproximation toAI wasA special siliconChipBuilt toBehave likeA humanBrainCell. It was modeledAfter the internal workings of neurons in the humanCerebralContext. Unlike theConventional silicon ship, which works inDigital mode, the new siliconChip works inAnalog mode, much the wayA humanBrainCell works.21. According to Turing,AComputerCan prove to have human-like intelligence inA special test if____A. theComputer givesBetterAnswersB. the questioner fails to give identical questionsC. the questionerCan't tellBetween theAnswers ofA personAndAComputerD. The questionerCan't find the person hiddenBy theComputer
With the development in science and technology man can make various flowers____ before their time.
24.3 Which of the following can possibly best describe the relationship between a cloned human and person from whom she/he is cloned?____(2分)
Only a few years later______ father told me a white lie.(1分)
21.4 Crying was adaptive for our ancestors because____.(2分)
2.4. Crying was adaptive for our ancestors because____.(1分)
2.5What does the passage mainly discuss?____(1分)
10.Could it be in the restaurant in ____ you had dinner with me yesterday ____ you lost your handbag?(1分)
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