知识过关第9讲 语法三【期中大通关】2024外研版英语九年级上册期中复习学案（原卷版+解析版）

中小学教育资源及组卷应用平台 知识过关第9讲 语法三 一、结果状语从句： 定义：就是在句子中作结果状语的句子，一般放在主句之后。 引导词：so that, so… that…, such… that…等 so that 意为“因此，所以，以致于”,是一个固定短语，如果省略that,句子通常为表结果的并列句，有些用法里会省略so,所以要分析具体语境。 例：He got up early so that he caught the first bus. 他起床早，所以赶上了第一班车。 （He got up early，so he caught the first bus.（表示结果的并列句） Tom worried so that he could not sleep. Tom很担心，所以他无法入睡。 目的状语从句 定义：在复合句中表示主句动作发生目的的状语从句。 引导词：so that, in order that, in case, for fear(that)，lest等 so that, 表示“以便”，它引导的从句只能放在主句后。注意结果状语从句和目的状语从句的区别。 例：She burned the letters so that her husband would never read them. 她把信都烧了，这样一来她丈夫就永远看不到了。 I will run slowly so that you can catch me easily. 我慢点跑，以便你能跟上我。 in order that,表示“为了”，通常放在主句后，也可以用in order to表示（目的状语，放主句前或后都可以） 例：He is working hard in order to pass the examination. =He is working hard in order that he can pass the examination. 为了考试及格，他正在努力学习 三、原因状语从句 原因状语从句是用来说明引起主句这个结果的原因的从句。 （一）、原因状语从句应注意问题 1、because ， since ，as ，for,辨析 1) because语势最强，用来说明人所不知的原因，回答why 提出的问题。当原因是显而易见的或已为人们所知，就用as或since。 I didn’t go, because I was afraid. Since /As the weather is so bad, we have to delay our journey. 2)由because引导的从句如果放在句末，且前面有逗号，则可以用for来代替。但如果不是说明直接原因,而是多种情况加以推断，就只能用for。例: He is absent today, because / for he is ill. He must be ill, for he is absent today. 3) as和for的区别:通常情况下，as引导的从句在主句前，for引导的从句在主句后。例: He is absent today, because / for he is ill. He must be ill, for he is absent today. 2、because 习惯上不与so连用，汉语习惯上说“因为…所以…”，但英语习惯上却不能将so与because 连用: 正:Because it was raining, we stayed at home. / It was raining, so we stayed at home. 误:Because it was raining， so we stayed at home.因为下雨，所 以我们呆在家里。 3、because 从句与because of 短语的转换 Because 引导的原因状语从句有时可与because of短语转换， because of 后加的原因可以为好或坏，但最正规的还是because。 He can’t come because he is ill./ He can’t come because of his illness.他因病不能来。 1．In Beijing, some 24-hour libraries are very popular with people _____ they are open all the time and in good places with big spaces and other good things. A．even if B．unless C．as D．or 2．My sister’s favourite subject is PE _____ it’s exciting. A．but B．or C．so D．because 3．I don’t want that T-shirt _____ it’s too big for me. Do you have a medium size (中号) A．after B．but C．because D．so 4．_____ white represents purity and peace, it is used in many important situations. A．While B．Whether C．Since D．Though 5．_____ he is busy, _____ he can’t play basketball with you ... ...