第1部分：词汇选项(第1～15题，每题1分，共15分)下面每个句子中均有1个词或者短语划有底横线，请为每处划线部分确定1个意义最为接近的选项。
1、 Smoke particles and other air pollutants are often trapped in the atmosphere, thus forming smog.
A．caught
B．burned
C．dirtied
D．covered


2、Apple trees need moisture in order to thrive.
A．flower
B．flourish
C．pollinate
D．bend


3、 Her behavior is extremely childish.
A．simple
B．immature
C．beautiful
D．pretty


4、 The Klondike was the scene of one of the biggest gold rushes the world has ever known.
A．location
B．view
C．even
D．landscape


5、 The flower bud of a water lily opens at sunset since its opening is triggered by the decreased light.
A．alleviated
B．endured
C．set off
D．covered up


6、 Tryouts for community orchestras are frequently judged by committees.
A．Advertisements
B．Auditions
C．Performances
D．Novelties


7、 We have ample money for the journey.
A．some
B．little
C．extra
D．enough


8、 You must try to wipe out the memory of these horrible events.
A．strange
B．terrible
C．unusual
D．unfair


9、 Europeans established permanent colonies on the eastern shores of what is now the United States throughout the seventeenth century.
A．during
B．before
C．up until
D．just after


10、 Mary gets up at the same time every morning.
A．arises
B．raises
C．arrives
D．stands up


11、 Hundreds of buildings were wrecked by the earthquake.
A．shaken
B．damaged
C．fallen
D．jumped


12、 A good employer gives hints to his or her employees without interfering with thei r creativity.
A．freedom
B．assistance
C．clues
D．funds


13、 Mary called me up very late last night.
A．shouted at me
B．visited me
C．telephoned me
D．waked me


14、 Every year each household in the United States discards approximately a ton oftrash.
A．filler
B．garbage
C．paper
D．fuel


15、 The rainfall of the Hawaiian Islands varies tremendously according to their topography and orientation to the prevailing winds.
A．seasonably
B．surprisingly
C．greatly
D．inversely
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