[单选题]During the start-up and acceleration of aeronautical gas turbine engine, pilots should pay special attention to the _______ parameters of the engine.
A.revolution speed of the low pressure rotor
B.revolution speed of the high pressure rotor
C.fuel flow rate
D.exhaust temperature

[单项选择]If your car _______ any attention during the first 12 months, take it to an authorized dealer.


A. shall need
B. should need
C. would need
D. will need

[单选题]No.1 engine shut down during climbing out, we intend to _______ .
A.go around
B.return to land
C.make a low approach
D.abandon takeoff

[单选题]“Port engine air intake ingested a bird during climbing out.” means a bird was _______ .
A.congested
B.taken in
C.knocked down
D.shut in

[单选题]“Engine partially disintegrated” means the engine _______ .
A.lost partly
B.lost
C.fire
D.down

[单项选择]The most important parameters affecting a rocket’s maximum flight velocity is the relationship between the vehicle’s mass and the amount of propellant it can carry.

[单选题]“No.3 engine flame out” means the engine _______ .
A.is on fire
B.is short of fuel
C.has stopped
D.has started

[单项选择]A scientist usually directs his attention towards problems which he notices have no satisfactory explanation, and his curiosity makes him look for______ relationship even if the data available seem to be unconnected.


A. underlining
B. underneath
C. undergoing
D. underlying

[单项选择]She requires __ medical attention.


A. punctual
B. prompt
C. rapid
D. fast

[单选题]The _______ system works well in high wing airplanes where the fuel tanks may be positioned above the engine and the difference in height between the wing-mounted fuel tanks and the engine allows the fuel to flow under sufficient pressure to the engine.
A.fuel-pump
B.boost pump
C.fuel-injected
D.gravity-feed

[单选题]“No.1 engine is overheating” means No.1 engine _______ .
A.is becoming too hot
B.has flamed out
C.has stopped
D.is running rough

[单项选择]Initially his book did not receive much attention, but two weeks after the critic's review appeared in the newspapers, it climbed to the best sellers' list.


A. At first
B. First of all
C. At first sight
D. From the first

[单项选择]His attention often wandered at lectures. No wonder he failed the exam.（）
A. 他听课时注意力不集中，难怪他考试不及格。
B. 他听课注意力不集中，所以他考试不及格。
C. 他的注意力不在听演讲，无可否认他考试不及格。
D. 他听课时注意力经常不集中，毫无疑问他考试不及格。

[单项选择]According to psychologists, a person's attention is attracted _______ by the intensity of different signals as by their context, significance, and information content.


A. much not so
B. not so much
C. so not much
D. so much not

[单选题]The _______ is located between the engine compartment and the cockpit to protect the occupants. It also serves as a mounting point for the engine.
A.nacelle
B.cowling
C.compartment
D.firewall

[单选题]The _______ , mounted on the front of the engine, translates the rotating force of the engine into a forward acting force called “thrust”.
A.propeller
B.cowling
C.firewall
D.nacelle

[单选题]The _______of a gas turbine is the place where fuel and air mix properly.
A.combustion chamber
B.turbine
C.accessory
D.compressor

[单选题]During this period American car manufacturers set about improving their products and work efficiency.As a result,the yearly income of the average family increased from 1950 to 1975 faster than the price of cars.For this reason（ ）a new car takes a smaller part of a family s total earmnings today.
A.bringing
B.obtain
C.bought
D.purchasing

[单项选择]During which period did mathematics remain unchanged


A. Ancient times
B. The 17th century
C. For 300 years
D. The Dark Ages

[单项选择]

Text 3
Search engine Google was aiming to float on Wall Street this week, valued at up to $ 36 billion. But the Internet company’s advisers are meeting this weekend to discuss possibly delaying the public listing after a sharp fall in share prices in New York on Friday. An insider said last night: "The float is teetering on the brink—it really is 50/50 at this stage, although many of us are optimistic." The initial public offering(IPO) of shares in Google, which could raise nearly $ 4bn, will amount to one of the biggest IPOs for years. But many: US firms have shelved their IPOs amid volatile market conditions and investors appear unwilling to subscribe to new equity. A Wall Street analyst said that the Google IPO "would be a seminal event for the American stock market" as its real significance was that it would test whether or not the recovery in equity prices since the end of the Iraq war had taken hold. "If this float works,
A. doubtful.
B. confused.
C. pessimistic.
D. confident.