《英语写作基础四种句型和改错.ppt

Simple, Compound, Complex and Compound-Complex Sentences in Your Writing Once a writer knows the difference between the three sentence types (simple, compound, and complex), it is possible to write with sentence variety. Sentence variety helps make your writing more interesting. Simple Sentence A simple sentence contains a subject and verb. It expresses a single complete thought. A simple sentence is a single independent clause. Sample Simple Sentences The cat crept through the dark house. The wary mouse watched from underneath an upturned cereal box. The predatory cat stopped and surveyed his surroundings. The mouse darted for the safety of the nearly invisible hole under the cabinet. Compound Sentences A compound sentence contains two independent clauses. Conjunctions (for, and, nor, but, or, and yet, so) join these independent clauses. (Hint: The conjunctions spell FANBOYS.) The conjunction used can impact the meaning of the sentence. Sample Compound Sentences The cat was unsuccessful in his attempt to catch the mouse, and the mouse was equally as unlucky in his attempt to get the cheese. The dog had watched all of this, but he had refused to become involved. The mouse could wait until dark, or he could risk a daylight raid on the pantry. The cat usually slept during the day, yet curiosity held him at the corner of the kitchen. Complex Sentences A complex sentence is an independent clause joined by one or more dependent clauses. A subordinating conjunction begins the dependent clauses. A dependent clause that begins a sentence must be followed by comma. A dependent clause has a subject and a verb, but it does not make sense on its own. Subordinating Conjunctions After how Until Although if Unless As in as much?? as if in order that When as long as At least Whenever as much as now that whereas soon wherever as though Since While because so that Before even if That even though ? though Sample Complex Sentences After he gave