题目内容
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A.She will attend a meeting.
B.She will attend a clss.
C.She will visit her friends.
D.She will go to the parking lot.
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Questions 下列各 are based on the following passage. You never see them, but theyre with you every time you fly. They record where you are going, how fast youre traveling and whether everything on your airplane is functioning normally. Their abilityto withstand almost any disaster makes them seem like something out of a comic book. Theyre knownas the black box. When planes fall from the sky, as a Yemeni airliner did on its way to Comoros Islands in the Indiaocean June 30, 2009, the black box is the best bet for identifying what went wrong. So when a Frenchsubmarine (潜水艇) detected the devices homing signal five day; later, the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed. In 1958, Australian scientist David Warren developed a flight-memory recorder that would trackbasic information like altitude and direction. That was the first mode for a black box, which becamea requirement on all U.S. commercial flights by 1960. Early model,, often failed to withstand crashes, however, so in 1965 the device was completely redesigned and moved to the rear of the plane - the arealeast subject to impact - from its original position in the landing wells (起落架舱). The same year, theFederal Aviation Authority required that the boxes, which were never actually black, be painted orangeor yellow to aid visibility. Modem airplanes have two black boxes: a voice recorder, which tracks pilots conversations, and a flight-data recorder, which monitors fuel levels, engine nois,~s and other operating functions thathelp investigators reconstruct the aircrafts final moments. Placed in an insulated (隔绝的) case andsurrounded by a quarter-inch-thick panels of stainless steel, the boxes can withstand massive force andtemperatures up to 2,000~F. When submerged, theyre also able to emit signals from depths of 20,000 ft. Experts believe the boxes from Air France Flight 447, which crasned near Brazil on June l, 2009, are inwater nearly that deep, but statistics say theyre still likely to turn up.In the approximately 20 deep-seacrashes over the past 30 years, only one planes black boxes were never recovered. What does the author say about the black box？
A.It ensures the normal functioning of an airplane.
B.The idea for its design comes from a comic book.
C.Its ability to ward off disasters is incredible.
D.It is an indispensable device on an airplane.
B.The price of school meals will be higher.
C.The prize will be awarded next term.
D.The school meals have been sold out.
A.international agreements can be reached more easily now
B.man begins to realize the danger of nuclear war
C.nuclear war will definitely not take place
D.world opinion welcomes nuclear war
B.He was crippled in a car accident．
C.He worked to become an executive．
D.He was born with a limp．
B.There was a conference going on in the city．
C.Thehotelwasundergoingmajor repairs．
D.It was a busy season for holiday—makers．
B.They help to increase the state governments revenue.
C.They provide a stage for people to give performances.
D.They remind Americans of the importance of agriculture.
A.It refines his writing into better shape.
B.It helps him to come up with new ideas.
C.It saves the writing time available to him.
D.It allows him to sit on the side and observe.
B.The woman doesnt seem to know what the book isabout.
C.The woman doesnt find the book useful any more.
D.The woman forgot lending the book to the man.
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