A. | unless | B. | if | C. | while | D. | though |
分析 所有的候选人都必须在下午2:00到达会议室,除非另有通知.
解答 答案A.unless"除非",在意义上相当于if…not,因此在有些场合中unless与if…not可互换使用,引导条件状语从句.if"如果",引导条件状语从句;while意思是"当…时",引导时间状语从句,意思是"尽管,虽然"时,引导让步状语从句;though"尽管,虽然",引导让步状语从句.通过分析可知前后两个句子应该是逻辑上的条件关系,可排除C和D两项.根据句子所表达的意思"除非另有通知",也就是说"如果不另有通知"的意思,故可排除B,答案选A.
点评 本题考查从属连词的用法.连词的用法辨析,要注意分析主从句之间的关系,再确定相应的连词,同时注意不同的连词的语义及用法区别.本题尤其要注意区分unless和if的用法.unless在意义上相当于if…not,因此在有些场合中unless与if…not可互换使用.如:Unless I am mistaken,I've seen that man before.=If I am not mistaken,I've seen that man before.如果我没搞错,我以前见过那个人.
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Flying cars may soon become a 1. (real). The rideshare service Uber has asked 2. expert from NASA, the American space agency, 3. (help) the company develop cars that can fly.
Uber plans to use flying vehicles 4. the future to avoid traffic in and around cities. The company wants to use small, totally electric aircraft, 5. could take off and land like a helicopter on top of parking garages. Uber said its flying vehicles would be much 6. (quiet), cost less to operate and produce less pollution than helicopters.
One person in San Francisco 7. (write) on Twitter, “I used to think that flying cars was a ridiculous idea. 8. I changed my mind this morning when I sat in a heavy traffic.” Another person added from Mumbai, India: “I’m reading about Uber 9. (hire) a NASA engineer to build flying cars, while Fm stuck in traffic. There is hope.”
The expert predicts there will be several early models of cars that can’t fly 10. (they) but with human pilots within one to three years.
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Queensland is one of the most amazing states in Australia. It has some of the most beautiful natural scenery on the planet, with the Great Barrier Reef, rainforests and impressive beaches.
The Great Barrier Reef
It is one of the world’s largest natural features. It stretches more that 2,300 km along the north eastern coast of Australia from the northern tip of Queensland to just north of Bundaberg. The things that most surprise visitors to the reef are the colors.
Without doubt, the best way to see the Great Barrier Reef is by diving. If you have a little extra money and you are feeling a bit lazy, you can fly over the reef in a plane.
Fraser Island
Another area of natural beauty is Fraser Island. This is the world’s largest sand island. It’s best visited from Hervey Bay on the mainland, where there are a number of places offering trips around the island. To fully appreciate Fraser Island you should go for three or four days. Attractions include some beautiful fresh-water lakes, particularly Lake Wabby and Lake Mckenzie. You can walk around these on white sands untouched by human footprints. Indian Head also has some beautiful views. Braver travelers can go and watch sharks circling the water hundreds of meters below.
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It would be a pity to travel around Queensland without taking a trip around the Whitsunday Islands. They were named by Captain Cook in 1770, after the day on which he arrived. Here are some of the great things you can do there.
●Cruise around them on a relaxing trip.
●Take a sailing course.
●Look at the aboriginal (土著的) paintings in caves on Hook Island.
●Have fun in the water doing lots of water sports.
So, will you be going to Queensland?
1.The best way to admire the beauty of the Great Barrier Reef is .
A. diving in the sea
B. taking a boat
C. flying in a plane
D. driving
2.What can we infer from Fraser Island?
A. Few places on the mainland can offer trips around the island.
B. One should have at least 2 days to fully explore Fraser Island.
C. Lake Wabby and Lake Mckenzie are rarely visited places.
D. Only brave ones can watch sharks in the deep ocean.
3.If you want to learn sailing, you can go to .
A. Hook Island
B. The Whitsunday Islands
C. Fraser Island
D. the Great Barrier Reef
4.The purpose of writing this passage is .
A. to adverse for Queensland
B. to inform the latest news
C. to call on people to protect Queensland
D. to break a world record
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