Mary worked very hard in the last semester. ______, she did very well in her studies.
A. At the beginning B. As a result
C. However D. Fortunately
— The floor is dirty.
— Yes. It _______ for two days.
A. hasn’t swept B. didn’t sweep
C. hasn’t cleaned D. hasn’t been cleaned
_____ speaking, a person must care much about his ____, because it is not only a personal thing, but also a social one.
A. Personal; personality B. Personally; personality
C. Personally; personal D. Personality; personal
文中共有10处语言错误，请在有错误的地方增加、删除或修改某个单词。每处错误及其修改均仅限一词；只允许修改10处，多者（从11处起）不计分。
I visited my aunt in a countryside near the city last week. I was surprised to see that great changes had been taken place in the countryside. Take my aunt's family for example. They supply preciously trees and flowers to the stores in the cities and have over ten workers working for themselves. Their family's income reached as much 100,000 yuan last year. Not only did they have a house, a car and computers, they can also afford a trip abroad every year. When asking what else they needed most, they said that they wanted to learn a few English so that they could do business with foreigners directly. To their delighted, my cousin can use he has learned from university to help them with overseas trade.
Canada is a multicultural country, with a large size but a small 1.. And it is s2. by water on three sides. Most Canadians live within 320kms of the USA 3.. Many people have the idea that they can cross the 4.(大陆) in less than five days , but they are wrong.
Canada has rich 5.(自然) resources, such as wood, fresh water and minerals. The trees are extremely tall, some 6. over 90meters. When you cross the Rocky Mountain, you may 7. sight of some mountain goats and even a grizzly bear and an eagle. If you're 8. enough to meet the Calgary Stampede, you'll see many wild animals and many cowboys, who have a g9. for working with animals, from all over North America. Of course, if you go to Canada, you can't miss the Lawrence River and the most 10.(富有的) and biggest city, Toronto.
A long flight can affect one's biological block, sometimes for days. Air travelers can get very tired and develop unpleasant feelings when they fly great distances across time zones. The natural order of things can become unbalanced on long, overseas trips from east to west or from west to east. This is what we call jet lag. 1.
● Try changing your meal and sleep times before you go
Several days before you travel, start moving your bedtime and hours for meals closer to the times you plan to eat and sleep on your trip.
● 2.
Change your watch when you get on the airplane. This is playing a trick on the mind. But it can help you to start thinking of the time at the other end of the flight. Try to sleep on the plane if it is nighttime in the place where you are going. Try to stay awake if it is daytime.
● Arrive early
If you are traveling for work or for a personal reason, try to arrive a few days early, if possible. 3.
● Drink water
Drink lots of water before, during, and after your flight. 4. Alcohol and caffeine can interfere with sleep.
● Move around
During your flight, get up and walk around or stretch every so often. 5. Exercise near bedtime can delay sleep, whether on an overseas trip or at home.
A. Play a trick on your watch.
B. This will give your mind and body more time to correct to the new hours.
C. Now the following tips can help you avoid jet lag.
D. Because exercise benefits you a lot after the flight.
E. Avoid drinking alcohol or caffeine a few hours before you plan to sleep.
F. But after you land, avoid heavy exercise near bedtime.
G. Start making small changes while in flight.
