《2025年同步轻松练习七年级英语上册人教版》

知识点 连词 and,but 和 because
连词是一种用来连接单词、短语或句子的虚词,在句子中不单独作成分。连词按照其性质可以分为并列连词和从属连词。并列连词用来连接平行的单词、短语或句子,如 and,but。从属连词用来引导从句,如 because。
1. and 意为“和；又；接着；而且”,用来连接两个并列成分,在句中可以表示并列、递进或延伸等。如：
She sings and dances very well.
她唱歌跳舞都很好。
She is a doctor and her husband is a teacher.
她是医生,她的丈夫是教师。
2. but 意为“但是”,在句子中可以表示转折、对比或强调等含义。如：
Our school is small but beautiful.
我们的学校虽小但是很漂亮。
The weather is fine,but I am not happy.
天气很好,但我并不开心。
3. because 意为“因为”,引导原因状语从句,在句子中用来引出一个理由或原因,解释为什么某事会发生或存在。如：
He doesn’t go to school because he is ill.
他没去上学,因为他病了。
He was late for school because he got up late.
他上学迟到了,因为他起晚了。

答案： 和；又；接着；而且 但是 原因

选词填空(and/but/because)。
①Lisa’s favourite subject is geography because she likes travelling.
②He is not my father but my uncle.
③I have art and maths today.
④My maths teacher is tall and handsome.
⑤He is happy because he gets a new bicycle.

答案： ①because ②but ③and ④and ⑤because