第二节 笔录要点（共4小题；每小题1分，满分4分）
听下面一段材料，将第17至20小题的信息补充完整，每小题不超过三个单词。听材料前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出15秒钟的作答时间。本段材料读两遍。
The London Fog
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In 1873
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lasted for days and caused 268 17 ___________
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In 1879
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lasted form November to 18 ______________
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In 1952
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lasted for four days and caused 19.________ deaths
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20. __________
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Parliament enacted The Clean Air Act
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Ⅱ 基础知识（80分）
一、单项选择（每小题1分）
21.( ) No one knows the reason_____he failed the exam.
A.hecause B.why C.that D.which
22.( ) I couldn’t do my homework with all that noise _______.
A.going on B.go on C.to go on D.weht on
23.( ) Our English teacher raised her voice to make herself ________.
A.hear B.to hear C.heard D.hearing
24.( ) The heavy fog ____ a few accidents this morning.
A.resulted from B.resulted in C.was caused by D.formed
