题目内容
He _______ have taken your car by mistake because he didn’t have the keys.
A．mustn’t B．shouldn’t C．couldn’t D．needn’t
C
【解析】
试题分析：句意：他不应该开错车因为他没有钥匙。mustn’t禁止；shouldn’t不应该；couldn’t不可能；needn’t不必。根据句意故选C。
考点：考查情态动词的用法。
点评：本题难度适中。情态动词是高中阶段的重难点之一，需要考生熟记它们的用法，在各类考试中经常出现，这里主要考查四个情态动词的区别，考生容易误选C。
即学即练: —I regret to say that I __________ have shouted at you the other day.
—Forget it. I was bit out of control myself. A.shouldn’t B.mustn’t C.couldn’t D.mightn’t
解析：A。根据句意，向对方道歉，应该是“我本不应该……”，故选A。
We hear with our ears, right? Yes, but scientists have known for years that we also hear with our eyes. In a study published in 1976, researchers found that people combined both auditory cues(听力提示) and visual ones，like mouth and face movements, when they heard speech.
A new study that looks at a different set of sensory cues adds to a growing body of evidence that suggests such combination is natural. In a paper, Bryan Gick and Donald Derrick report that people can hear with their skin.
The researchers had volunteers listen to spoken syllables. Meanwhile, they connected the volunteers to a device that would blow a tiny puff (气流) of air onto the skin of their hands or necks. The syllables included “ba” and “pa”, which produce brief puffs from the mouth when spoken, and “da” and “ta,” which do not produce puffs. They found that when listeners heard “da” or “ta” while a puff of air was blown onto their skin, they considered the sounds as “ba” or “pa”.
Dr. Gick said the findings were similar to those from the 1976 study, in which visual cues defeated auditory ones — volunteers listened to one syllable but thought it another because they were watching a video of mouth movements corresponding to the second syllable. In his study，he said，cues from sens
ory receivers on the skin defeate
d the ears as well. “Our skin is doing the hearing for us,” he said.
Dr. Gick noted that it would normally be rare that someone actually sensed a puff of air produced by another, although people might occasionally sense their own puffs. “What’s so persuasive about this particular effect,” he added. “is that people are picking up on this information that they don’t know they are using.” That supports the idea that combining different sensory cues is natural.
Dr. Gick said the finding also suggested that other sensory cues might be at work in speech perception(知觉) — that, as he put it, “we are these fantastic perception machines that take in all the information available to us and combine it faultlessly.”
【小题1】“Da” or “ta” were considered as “ba” or “pa” when __________.
| A．they were spoken quickly |
| B．puffs of air were blown onto the listener’s skin |
| C．they were pronounced using a special device |
| D．they were made with face movements |
| A．Humans combine different sensory cues through experience. |
| B．Dr. Gick’s new study is more important than the one in 1976. |
| C．People sometimes can sense their own puffs when speaking |
| D．Only auditory and visual cues are at work in speech perception. |
| A．We Can Hear with Our Skin |
| B．Our Visual Cues Is Doing the Hearing for Us |
| C．Facial Expressions Are Important |
| D．We Are Fantastic Machines |