When is a driver likely to have a sleep-related accident according to researchers?

A、 In the middle of the morning is 10 times as likely as those driving in the evening.
B、 Very early in the evening is as likely as those driving early in the morning.
C、 Very early in the morning is much more likely than those driving early in the evening.
D、 In the middle of the evening is 10 times as likely as those driving early in the morning.

【正确答案】 C

【答案解析】解析：掌握倍数表达法是解题的关键。

单选题 Why haven't British government bodies initiated any studies?

A、 Because they do not take the problem of sleepy drivers on motorways as of great significance.
B、 Because they have not been aware of the seriousness of the problem of sleepy drivers.
C、 Because they have no figures on the number of accidents caused by drivers' sleepiness.
D、 Because they plan to support relevant researches or a general study on " driver behaviour".

【正确答案】 A

【答案解析】解析：1)理清上下文句义间的内在逻辑关系；2)掌握同义词转换，如A项中of great significance与原文high-priority意思相当。

单选题 Which of the following is NOT a reason that many motorway accidents are categorized under headings other than sleepiness?

A、 The Transport and Road Research Laboratory finds the cause as "perceptual errors".
B、 Drivers are unwilling to admit to "falling asleep" for fear of being dismissed.
C、 Few investigators inquire further to discover the actual reasons hidden behind.
D、 Insurance companies are reluctant to pay insurance for drivers' sleepiness.

【正确答案】 A

【答案解析】解析：根据上下文关系，找出句间逻辑关系，也可凭借某些表原因的短语，确定前后句的因果关系。本题中原文中For various reasons，表明了前后句的因果关系。

单选题 Under what circumstance can we tell an accident is probably caused by sleepiness?

【正确答案】 D

【答案解析】解析：掌握表示举例的信号词。如本题原文使用There are some strong pointers来提示听者注意下面是举例的内容，即该题的答案所在。

单选题 As for the writer, what can be concluded from the talk?

A、 He believes driving on a road as dull as a motorway leads to drivers' sleepiness.
B、 He thinks it a pity that the issue of sleepiness has not been properly reported.
C、 He agrees with the government bodies that reliable statistics cannot be obtained.
D、 He shares with the police that sleepiness has caused 20% of motorway accidents.

【正确答案】 A

【答案解析】解析：正确理解语义是解题关键。