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在英语语法中,句子通常由一个主句和一个或多个从句组成。主句是完整的句子,它可以独立成为一个句子。而从句则依赖于主句的语意,无法独立成为一个句子。以下是几个主句和从句的例子:
例子1
主句:I like to eat pizza.
从句:which is my favorite food.
合成句:I like to eat pizza, which is my favorite food.
在这个例子中,从句“which is my favorite food”依赖于主句“I like to eat pizza”的语意,用逗号将两个句子连接起来形成了合成句。
例子2
主句:She will graduate from college next month.
从句:if she passes all her exams.
合成句:She will graduate from college next month if she passes all her exams.
在这个例子中,从句“if she passes all her exams”是一个条件从句,它依赖于主句“She will graduate from college next month”的语意,用if将两个句子连接起来形成了合成句。
例子3
主句:They met in a coffee shop.
从句:where they had their first date.
合成句:They met in a coffee shop, where they had their first date.
在这个例子中,从句“where they had their first date”是一个地点从句,它依赖于主句“They met in a coffee shop”的语意,用逗号将两个句子连接起来形成了合成句。
通过这些例子,我们可以看到主句和从句如何相互依赖,形成一个完整的句子。正确地使用主句和从句可以让我们的句子更加清晰明了,表达意思更加准确。