1.if引导的条件状语从句-2025-2026学年英语期末语法复习八年级上册（人教版）

期末语法复习 8上·人教版·引导的条件状语从句 一、f引导的条件状语从句核心用法详解 一、核心考点解析·考点1 考点：主句与从句的时态搭配 规则：f引导的条件状语从句表示将来可能发生的情况时，主句用一般将来时(w+ 动词原形)，从句用一般现在时（主将从现）。 真题再现（人教版八上期末真题改编）： If it tomorrow,we will stay at home A)rain B)rains C)will rain D)rained 答案：B 解析：从句表示将来，用一般现在时，主语it是第三人称单数，故填rains。 例题练习： You(feel)better if you have a good rest. 答案：will feel 解析：主句表示将来，用w+动词原形。 二、核心考点解析·考点2 考点：f从句在句首的用法 规则：当f引导的条件状语从句位于句首时，从句后需要用逗号与主句隔开。 真题再现（句型转换）： We will go for a picnic if the weather is fine.(改为if从句在句首) the weather is fine,we will go for a picnic. 答案：If 解析：f从句移至句首后需加逗号分隔主从句。 三、核心考点解析·考点3 考点：f表示“是否”时的用法（区分条件状语从句与宾语从句） 规则：f引导宾语从句时表示“是否”，时态根据主句时态和语境确定，不遵循“主将 从现”；引导条件状语从句时表示“如果”，遵循“主将从现”。 真题再现（语法填空）： I don't know ifhe_(come)tomorrow.Ifhe_(come),I will call you. 答案：will come;comes 解析：第一个f引导宾语从句表“是否”，用将来时；第二个f引导条件状语从句，用 一般现在时。 四、核心考点解析·考点4 考点：f条件句的否定形式 规则：if从句的否定形式在谓语动词前加don't/doesn't/didn't(根据时态)，主句否定形 式在wil后加not(won't)。 真题再现（选择）： If youcareful,you will make mistakes. A)aren't B)not be C)don't be D)be not 答案：A 解析：be动词的否定形式直接在后面加not。 二、考点综合训练 (一)单项选择 1.If shefree tomorrow,she will go shopping with us. A)is B)was C)will be D)are 2.We to the park if it doesn'train this weekend. A)go B)went C)will go D)have gone 3.If you late again,the teacher will be angry. A)not be B)aren't C)don'tbe D)be not 4.I don't know if heto the party tonight.If heI'll tell you. A)comes;comes B)will come;will come C)comes;will come D)will come;comes 5.-you study hard,you will pass the exam. A)If B)Unless C)Though D)Because (二)语法填空 1.You_(learn)English well if you practice every day 2.If he(have)time tomorrow,he(visit)his grandparents. 3.She(not go)out with you if it(rain)this afternoon 4.I want to know if they_(arrive)here on time tomorrow. (三)句型转换 1.They will have a picnic if the sun shines.(改为if从句在句首) they will have a picnic. 2.If you don'thuy,you will miss the bus..（改为同义句) Hurry up,-you miss the bus. 3.I think she will come to the meeting.(改为含if的宾语从句) I think she_come to the meeting. (四)篇章填空 It's Saturday tomorrow.I don't know ifmy parents 1.-(take)me to the zoo.If they 2. (agree),I 3.(be)very happy.My friend Lily said she 4.(call)me this evening.I want to ask her if she 5.(join)us.If we 6.(go)to the zoo,I 7.(take)many photos. (五)参考答案与解析 1.单项选择答案：1.A2.C3.B4.D5.A 2.语法填空答案： 1.will learn 2.has;will visit 3.won't go,rains 4.will arrive 3.句型转换答案： 1.If the sun shines 2.or,will 3.if,will 4.篇章填空答案： 1.will take 2.agree 3.will be 4.will call 5.willjoin 6.go 7.will take 英语语法复习手册·8上·人教版·f引导的条件状语从句