SAT寫作:標點符號的正確用法
正確使用標點符號
1.逗號
請遵循以下4大規則：
1.用逗號分開系列成分。如果有2個以上相同成分，則應用逗號分開;例如：
My recipe for buttermilk biscuits contains flour, soda and buttermilk.
2. 使用逗號來分開插入從句和短語;例如：
Gordon, who is a writer by profession, bakes an excellent cheesecake.
3.在引導性分詞或介詞短語后使用逗號;例如：
After the banquet, Harold and Martha went dancing.
4.利用逗號來分開連詞連接的獨立從句。例如：
Susans old car has been belching blue smoke from the tailpipe for two weeks, but it has not broken down yet.
2.分號
請遵循以下2大規則：
1.使用分號而不是并列連詞來連接兩個含義緊密的獨立從句;例如：
Whooping cranes are an endangered species; they are unlikely to survive if we continue to pollute.
2. therefore、nevertheless和moreover等詞連接的獨立從句可用分號隔開。例如：
The staff meeting has been postponed until next Thursday; therefore, I will be unable to get approval for my project until then.
3.冒號
請遵循以下3大規則：
1.在正式的寫作中，冒號的作用僅在于表明其后是對前面所述內容的詳細說明、定義、解釋或過去發生事情的概述。冒號之前一般是獨立從句，并且通常情況下有as follows、the following、namely或like等提示短語。例如：
正確：Your instructions are as follows: read the passage carefully, answer the questions on the last page, and turn over your answer sheet.
2.動詞和直接賓語間不要放冒號。例如：
錯誤：I want: a slice of pizza and a small green salad.
正確：This is what I want: A slice of pizza and a small green salad.
3.如果前后兩句話有如上所述的緊密關系，即使沒有上述表示這層關系的短語，也可使用冒號，并且在這種情況下，句號也可用。例如：
正確：We were aghast: The charming country inn that had been advertised in such glowing terms proved to be a leaking cabin full of mosquitoes.
4.連字符號和破折號
請遵循以下7大規則：
1.行末單詞分開時使用連字符號。例如：
正確：In this incredible canvas, the artist used only monochromatic elements.
2.表示21-99這些數字和用作形容詞的分數時，使用連字符號。
錯誤：A two thirds vote was necessary to carry the measure.
正確：A two-thirds vote was necessary to carry the measure.
正確使用標點符號
1.逗號
請遵循以下4大規則：
1.用逗號分開系列成分。如果有2個以上相同成分，則應用逗號分開;例如：
My recipe for buttermilk biscuits contains flour, soda and buttermilk.
2. 使用逗號來分開插入從句和短語;例如：
Gordon, who is a writer by profession, bakes an excellent cheesecake.
3.在引導性分詞或介詞短語后使用逗號;例如：
After the banquet, Harold and Martha went dancing.
4.利用逗號來分開連詞連接的獨立從句。例如：
Susans old car has been belching blue smoke from the tailpipe for two weeks, but it has not broken down yet.
2.分號
請遵循以下2大規則：
1.使用分號而不是并列連詞來連接兩個含義緊密的獨立從句;例如：
Whooping cranes are an endangered species; they are unlikely to survive if we continue to pollute.
2. therefore、nevertheless和moreover等詞連接的獨立從句可用分號隔開。例如：
The staff meeting has been postponed until next Thursday; therefore, I will be unable to get approval for my project until then.
3.冒號
請遵循以下3大規則：
1.在正式的寫作中，冒號的作用僅在于表明其后是對前面所述內容的詳細說明、定義、解釋或過去發生事情的概述。冒號之前一般是獨立從句，并且通常情況下有as follows、the following、namely或like等提示短語。例如：
正確：Your instructions are as follows: read the passage carefully, answer the questions on the last page, and turn over your answer sheet.
2.動詞和直接賓語間不要放冒號。例如：
錯誤：I want: a slice of pizza and a small green salad.
正確：This is what I want: A slice of pizza and a small green salad.
3.如果前后兩句話有如上所述的緊密關系，即使沒有上述表示這層關系的短語，也可使用冒號，并且在這種情況下，句號也可用。例如：
正確：We were aghast: The charming country inn that had been advertised in such glowing terms proved to be a leaking cabin full of mosquitoes.
4.連字符號和破折號
請遵循以下7大規則：
1.行末單詞分開時使用連字符號。例如：
正確：In this incredible canvas, the artist used only monochromatic elements.
2.表示21-99這些數字和用作形容詞的分數時，使用連字符號。
錯誤：A two thirds vote was necessary to carry the measure.
正確：A two-thirds vote was necessary to carry the measure.
