A run-on sentence occurs when two complete sentences are written as one sentence.
Run-on sentence example:
-Sue loves to cook she is always in the kitchen.
-The auction was very successful, it raised almost half a million dollars for cancer research.
There are three ways to correct this problem:
1.Use punctuation, usually a period, to separate the two sentences.
E.g. Sue loves to cook. She is always in the kitchen.
2.Use a coordination conjunction (and, but, for, so, or, nor, yet) to connect the two clause.
E.g. The movie was boring, but we watched it anyway.
Coordination conjunctions: Words which join two sentences of equal importance. (SONYFAB)
S – so, O – or, N – nor, Y – yet, F – for, A – and, B – but
These conjunctions are normally used in the middle of sentence, avoid AND, BUT, SO at beginning of sentences. They are sometimes used in newspaper.
Put a comma before ‘SONYFAB’ when you have two separate clauses in a sentence, but no comma for two nouns, verbs, adjectives, adverbs.
3.Use a subordination conjunction to connect the two clauses.
E.g. I am very hungry because I didn’t eat breakfast.
Subordination Conjunctions: Connect clauses that are of subordinate importance to the independent clause or to some element in the main clause, the following are some of the more common ones
Indicates cause: because, as, since, for, in order to, so as to
Indicates concession: although, even though, except, though, while
Indicates condition: if, whether, unless
Indicates time: before, after, since, when, whenever, while, till, until, once, now, as long as, as soon as
Indicates place: where, wherever
Indicates similarity and contrast: as, than, whereas, while
When conjunctions appear at beginning of a sentence, use a comma at the end of the first cause. No comma in the middle of the sentence if the conjunction is place between two clauses.
E.g. Because he is very gentle, I like my dentist.
E.g. I like my dentist because he is very gentle.
exercise:
http://depts.dyc.edu/learningcenter/owl/exercises/run-ons_ex1.htm
http://grammar.ccc.commnet.edu/grammar/quizzes/nova/nova4.htm
http://grammar.ccc.commnet.edu/grammar/quizzes/runons_quiz.htm
转载请注明：来源 新华人网 Chinadian.ca
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