He was happy to have saved the bird his left hand was hurt． [ ] A．as B．if C．since D．though 题目和参考答案——青夏教育精英家教网—

题目内容

He was happy to have saved the bird ________ his left hand was hurt．

[　　]

A．as

B．if

C．since

D．though

答案：D

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　　DC Hilton was one of the fist Amerircans to find out that there was money to be made in the middle of the night. 42 years ago he bought a small restaurant on US Highway 69, in Oklahoma. His main customers were truck drivers and 1 salesmen who drank coffee and ate cheeseburgers when they stopped to 2 their journey.

　　It was they who first tried to persuade Hilton to remain open all night. He thought about it for a while, and then suddenly made up his his mind. He took the door key and threw it across the road. He hasn't closed the door 3 .

　　Over the years his simple burger cafe has expended into a 24-hour roadside empire, with a 100-seat restaurant, a petrol station, a mini shopping market, a car park 4 mobile homes(活动住房) and all night self-help laundry(洗衣房) .

　　Hilton was a pioneer in a 24-hour 5 which has now caught on around the world. Today not only restaurants but also banks, supermarkets, mail-order firms, travel agencies and many other businesses are 6 to be open all night. 7 is this really a good thing?

　　A lot of research has been done in America on the effect of 24-hour working, and there is growing 8 about the long term dangers of a society that doesn't sleep. Americans are said to be sleeping 20% less than they did 100 years ago, and 55% claim to suffer at least occasionally from over-tiredness. 9 of the worst-made disasters hap pened in the last few hours before dawn. when even the mast experienced nightworker has difficulty 10 awake.

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