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6．相鄰的句子，是否避免了不必要的結構轉變
a) While we reduce the number of vehicles, the speed of traffic can be increased.
b) While the number of vehicles is reduced, the speed of traffic is increased.
兩個非常相關的意思，不要一個使用主動結構，一個使用被動結構。
a) Each of us may take a part-time job to help support ourselves, but if you spend too much time on it, your study will be affected.
b) Each of us may take a part-time job to help support ourselves, but too much time spent on it, our studies will be affected.
前半句用each of us和ourselves，后半句卻用you和 your study，應一致起來。
7．可數名詞與不可數名詞是否用得正確
a) TV presents us with many useful informations.
b) TV presents us with a lot of useful information
還有evidence, advice, knowledge等都是不可數名詞，都不能用復數。另外， many, a great number of, another, few 等只能與可數名詞配用。而a great amount of, a great deal of, less, much 等應與不可數名詞配用。
a) Making our cities greener is not an easy work.
b) Making our cities greener is not an easy job.
work 用作可數名詞是“作品”這類意思，而表示“工作”時，不可數。同樣，在 Word has been sent out that those who cheat on exams will be punished. 這個句子中，要用單數word表示“信息”。
a) Each people has his own opportunities.
b) Each person has his own opportunities.
people作“人民”、“人們”解時，是集體名詞，不能與each配用。a people或 peoples表示民族、國家。在正式語體中也不能說 less people，而應說 few people。
8．冠詞是否用得正確
a) Book knowledge is important, but we should also learn something in the society.
b) Book knowledge is important, but we should also learn something in society.
用定冠詞the, 是特指意義，而這里沒有這個特指意義。同樣，在When I was in the high school, I always have a beautiful picture of the college life. 中，兩個the都應去掉。
a) If there were no electric power, we would have to do everything by the hands.
b) If there were no electric power, we would have to do everything by hand.
表示用手 (by hand), 走路 (on foot), 上課 (in class), 上學 (go to school), 住院 (at hospitable)等，都不用定冠詞。
a) If there were no electric power, factory would stop producing goods, car, bus and train would stop running.
b) If there were no electric power, factories would stop producing goods; cars, buses and trains would stop running.
用可數名詞時，要么前面有冠詞（the, a, an)或代詞(his, her, my), 要么以復數形成出現。不能像中文名詞那樣沒有語法變化。
（來源：網絡）
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