语法单选类（最易出高分差、课堂高频练爆款）
这类题目抓易混淆语法点、固定搭配、时态语境、从句引导词，是学生最容易错、练完提升最直观的题型，适合课前5分钟小测、单元过关检测。
一. 时态综合易错题（中考占比最高，学生最容易凭语感乱选）
母题合集
1. I ______ my homework when my mother came back home yesterday.
A. do B. did C. was doing D. am doing
考点：过去进行时+when引导时间状语从句，核心区分瞬间动作与进行中的动作。
2. My father ______ Beijing twice. He ______ there last summer.
A. has been to; went B. has gone to; went C. has been to; has gone D. went; has been
考点：have been to / have gone to 核心辨析+现在完成时vs一般过去时，初中最经典爆款区分题。
3. We ______ a picnic if it ______ fine this weekend.
A. will have; is B. will have; will be C. have; is D. have; will be
考点：if引导条件状语从句，主将从现，中考必考、年年考。
4. Listen! The birds ______ happily in the tree.
A. sing B. sang C. are singing D. were singing
考点：现在进行时标志词（listen/look），基础但高频，适合夯实基础。
二. 冠词&介词固定搭配（学生丢分重灾区）
1. There is ______ "h" and ______ "u" in the word "hour".
A. a; an B. an; a C. a; a D. an; an
考点：冠词a/an看音素不看字母，h /eɪtʃ/ 元音开头，u /juː/ 辅音开头，是全网、教辅最火的冠词易错题。
2. We usually have the first class ______ 8:00 ______ the morning.
A. at; in B. on; in C. at; on D. in; at
考点：时间介词at+具体时刻、in+早中晚、on+具体某天，基础但必考。
3. I am good ______ playing the piano, but my sister does well ______ dancing.
A. at; in B. in; at C. at; at D. in; in
考点：be good at / do well in 同义短语固定搭配，学生极易混淆。
三. 连词&从句引导词（初二初三核心难点）
1. I didn't go to the park yesterday ______ it rained heavily.
A. because B. so C. but D. though
考点：原因连词辨析，基础逻辑题，延伸可出because/so不可连用的升级版错题。
2. This is the school ______ I studied three years ago.
A. where B. when C. that D. which
考点：定语从句关系副词，初三核心，区分地点状语与先行词成分。
3. Could you tell me ______ we will have a meeting tomorrow?
A. that B. if C. what D. which
考点：宾语从句引导词if（是否），区分if的条件用法与宾语从句用法。
四. 非谓语&情态动词（初二下册、初三重点）
1. My mother asks me ______ up too late.
A. not stay B. not to stay C. don't stay D. not staying
考点：ask sb. (not) to do sth. 不定式否定结构，高频固定句型。
2. You ______ smoke in public places. It's not allowed.
A. can B. may C. mustn't D. needn't
考点：情态动词mustn't（禁止） 辨析，结合生活场景，学生易和needn't混淆。
