5．用代詞時，指代是否清楚
例13 a) Sometimes teachers will inform students of the heavy burden they have to bear.
b) Sometimes a teacher will inform students of the heavy burden he has to bear.
they 即可指代teachers, 也可指代 students，明顯的是指代不清。其實只要把其中一個名詞變成單數(shù)，用he和 they分別代不同的名詞，就清楚了。因為 a teacher也可泛指所有教師。
例14 a) Someone believes that the teacher's task is to give students knowledge, which may not be true.
b) Someone believes that the teacher's task is to give students knowledge, a notion which may not be true.
which指代什么不清楚，指 knowledge，還是指前面整個句子？如果指 Someone believes，好用 a notion或an idea歸納一下整個句子的意思，然后引出從句。
例15 a) People have been fighting against the influence of TV commercials, but it often proves useless.
b)People have been fighting against the influence of TV commercials, but the effort often proves useless.
it 指什么？如指influence，則在 it often proves useless 這個句子中顯然不通。寫作人知道it指人們的努力，但effort 這個詞前面沒有出現(xiàn)過，就不能用it。
6．相鄰的句子，是否避免了不必要的結(jié)構(gòu)轉(zhuǎn)變
例16 a) While we reuce the number of vehicles, the speed of traffic can be increased.
b) While the number of vehiles is reduced, the speed of traffic is increased.
兩個非常相關(guān)的意思，不要一個使用主動結(jié)構(gòu)，一個使用被動結(jié)構(gòu)。
例17 a) Each of us may take a parttime 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 parttime 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(yīng)一致起來。
7．可數(shù)名詞與不可數(shù)名詞是否用得正確
例18 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(shù)名詞，都不能用復(fù)數(shù)。另外， many, a great number of, another, few 等只能與可數(shù)名詞配用。而a great amount of, a great deal of, less, much, 等應(yīng)與不可數(shù)名詞配用。
例19 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(shù)名詞是“作品”這類意思，而表示“工作”時，不可數(shù)。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(shù)word表示“信息”。
例20 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(yīng)說 few people。
8．冠詞是否用得正確
例21 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(yīng)去掉。
例22 a) If there were no electirc 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(xué) (go to school), 住院 (at hospitable)等，都不用定冠詞。
例23 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(shù)名詞時，要么前面有冠詞（the, a, an)或代詞(his, her, my), 要么以復(fù)數(shù)形成出現(xiàn)。不能像中文名詞那樣沒有語法變化。
例13 a) Sometimes teachers will inform students of the heavy burden they have to bear.
b) Sometimes a teacher will inform students of the heavy burden he has to bear.
they 即可指代teachers, 也可指代 students，明顯的是指代不清。其實只要把其中一個名詞變成單數(shù)，用he和 they分別代不同的名詞，就清楚了。因為 a teacher也可泛指所有教師。
例14 a) Someone believes that the teacher's task is to give students knowledge, which may not be true.
b) Someone believes that the teacher's task is to give students knowledge, a notion which may not be true.
which指代什么不清楚，指 knowledge，還是指前面整個句子？如果指 Someone believes，好用 a notion或an idea歸納一下整個句子的意思，然后引出從句。
例15 a) People have been fighting against the influence of TV commercials, but it often proves useless.
b)People have been fighting against the influence of TV commercials, but the effort often proves useless.
it 指什么？如指influence，則在 it often proves useless 這個句子中顯然不通。寫作人知道it指人們的努力，但effort 這個詞前面沒有出現(xiàn)過，就不能用it。
6．相鄰的句子，是否避免了不必要的結(jié)構(gòu)轉(zhuǎn)變
例16 a) While we reuce the number of vehicles, the speed of traffic can be increased.
b) While the number of vehiles is reduced, the speed of traffic is increased.
兩個非常相關(guān)的意思，不要一個使用主動結(jié)構(gòu)，一個使用被動結(jié)構(gòu)。
例17 a) Each of us may take a parttime 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 parttime 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(yīng)一致起來。
7．可數(shù)名詞與不可數(shù)名詞是否用得正確
例18 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(shù)名詞，都不能用復(fù)數(shù)。另外， many, a great number of, another, few 等只能與可數(shù)名詞配用。而a great amount of, a great deal of, less, much, 等應(yīng)與不可數(shù)名詞配用。
例19 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(shù)名詞是“作品”這類意思，而表示“工作”時，不可數(shù)。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(shù)word表示“信息”。
例20 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(yīng)說 few people。
8．冠詞是否用得正確
例21 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(yīng)去掉。
例22 a) If there were no electirc 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(xué) (go to school), 住院 (at hospitable)等，都不用定冠詞。
例23 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(shù)名詞時，要么前面有冠詞（the, a, an)或代詞(his, her, my), 要么以復(fù)數(shù)形成出現(xiàn)。不能像中文名詞那樣沒有語法變化。