一句话：英文祈使句直接以动词原形开头，不加主语 you。中文"打开书"要靠语气，英文是 Open your books. 而不是 You open your books.。
描述教室位置时，There is + 单数，There are + 复数。说"墙上有一幅地图"是 There is a map on the wall；说"有 20 张桌子"是 There are twenty desks。
为什么这 10 个指令最该先会KET 听力 Part 1 常放课堂指令选图，写作 Part 6 常让你写教室规则或给同学留言。会说祈使句，口语 Part 2 两人互动时也能当"小老师"。
记课堂用语的正确姿势不要背中文翻译。把自己当成老师，对着空气发指令——Open your books. Listen carefully. 做过一遍动作，胜过抄十遍。
④ 课堂用语全表：三条线一次给全
第一条线 · 上课指令（8 个）
指令
意思
使用场景
Open your books.
打开书。
开始上课
Close your books.
合上书。
考试/听写前
Listen carefully.
仔细听。
老师讲新内容
Look at the board.
看黑板。
写板书时
Sit down, please.
请坐。
学生进教室
Stand up.
起立。
上课开始/问好
Come to the front.
到前面来。
叫学生回答
Be quiet, please.
请安静。
教室太吵时
第二条线 · 作业与活动指令（6 个）
指令
意思
使用场景
Hand in your homework.
交作业。
上课开始收作业
Do exercise 3 on page 20.
做第 20 页练习 3。
课堂练习
Write it down in your notebook.
记在笔记本上。
记笔记
Work in pairs.
两人一组练习。
对话练习
Work in groups of four.
四人一组。
小组活动
Put up your hand.
举手。
想发言时
第三条线 · 描述教室（there is/are + 方位词）
句型
例句
说明
There is + 单数
There is a teacher's desk at the front.
单数名词用 is
There are + 复数
There are 20 desks and 20 chairs.
复数名词用 are
on the wall / on the desk
There is a map on the wall.
on 表示"在…上面"
next to / near
The teacher's desk is next to the board.
next to 紧挨着
in front of / behind
There is a bookshelf in front of the window.
in front of 在前面
under
There is a rubbish bin under the desk.
under 在下面
⑤ 五大使用场景全解（配图记忆）
场景
例句
记忆点
1 老师开场
Good morning, class! Open your books to page 10.
Open + 宾语 + to page
2 收作业
Please hand in your homework now.
hand in = 上交
3 描述教室
There is a big board at the front, and there are 20 desks.
is 跟单数，are 跟复数
4 教室方位
The bookshelf is next to the window. The rubbish bin is under the desk.
next to / under / behind
5 写教室规则
Be quiet in class. Put up your hand before you speak. Don't eat in the classroom.
祈使句：肯定原形开头；否定 Don't + 原形
there is / there are 就近原则一句话里有单有复，be 动词跟着最近的名词走：There is a book and two pens on the desk.（最近是 a book，用 is）；There are two pens and a book.（最近是 two pens，用 are）。
⑥ 中国学生 5 大高频错误诊断
错误 1：there is / there are 混用 ✗ There is 20 desks in the classroom. → ✓ There are 20 desks in the classroom. 20 desks 是复数，用 are。
错误 2：祈使句加主语 you ✗ You open your books, please. → ✓ Open your books, please. 祈使句直接动词原形开头，不加 you。
错误 3：否定祈使句错 ✗ Not eat in the classroom. → ✓ Don't eat in the classroom. 否定祈使句用 Don't + 动词原形。
错误 4：hand in 拆分错 ✗ Hand your homework in to me.（口语可）→ ✓ Hand in your homework.（标准指令） hand in 是"上交"，宾语是 homework。
错误 5：in class / in the class 混 ✗ Be quiet in the class. → ✓ Be quiet in class. in class = 在上课（抽象，不加 the）；in the class = 在那个班/教室里（具体，加 the）。
⑦ KET 考点与真题演练
题型
怎么考
应对
Listening Part 1
听课堂指令，选对应的图
抓 open / close / hand in / work in pairs
Reading Part 5 完形
短文挖空，考 there is/are / 介词
There __ a map on the wall
Writing Part 6 短消息
≥25 词，写教室规则/给同学留言
用祈使句写规则：Be quiet. Don't run.
Speaking Part 2
两人讨论学校规则
用 We must / We can't 配合祈使句
Reading Part 3
读教室描述短文，判断对错
抓方位词 next to / behind / under
真题风格演练（KET 出题方式）
真题风格 · KET Part 5 完形自填___ is a big board at the front of the classroom. There ___ 20 desks and 20 chairs. The bookshelf is next ___ the window.
There / are / to。There is a board（单数）；20 desks 复数用 are；next to 固定搭配。
真题风格 · KET Listening Part 1你听到老师说："Please close your books and take out a pencil." 老师接下来要做什么？
A. 开始上课 B. 考试/听写 C. 交作业
B。close books + take out pencil = 准备听写或考试。
真题风格 · KET Writing Part 6你是班长，给全班写一条 25 词的教室规则通知：① 上课安静；② 举手发言；③ 不要在教室吃东西。
参考：Hi everyone, Please remember our classroom rules. Be quiet in class, and put up your hand before you speak. Don't eat or drink in the classroom. Thank you! Monitor（38 词）
考场提分提醒写规则类短文，记住三条句型就够：肯定祈使句（Be quiet.）、否定祈使句（Don't run.）、加 please 更礼貌（Please hand in your homework.）。
⑧ 背诵内容：10 个必备句型
每句都是课堂高频句，背下来直接能搬上考场。
1.Open your books to page 10. 把书翻到第 10 页。
2.Listen carefully, please. 请仔细听。
3.Look at the board. 看黑板。
4. Please hand in your homework now. 请现在交作业。
5.Work in pairs and practise the dialogue. 两人一组练习对话。
6.There is a teacher's desk at the front. 前面有一张讲桌。
7.There are 20 desks in the classroom. 教室里有 20 张课桌。
8. The bookshelf is next to the window. 书架在窗户旁边。
9.Be quiet in class, please. 上课时请安静。
10.Don't eat or drink in the classroom. 不要在教室里吃喝。
KET Writing 模板（描述教室）
This is our classroom. There is a big board at the front, and there are 20 desks and chairs. There is a map on the wall. The bookshelf is next to the window. We open our books and listen carefully in class. We don't eat in the classroom.
⑨ 口语练习：说出来才算会
练习 A · 跟读（2 分钟）
跟着背诵卡读 3 遍，特别注意 Open / Listen / Hand in 的连读。
练习 B · 角色扮演（3 分钟）
你当老师：对学生说 "Open your books." → 学生做动作。
你当老师：说 "Hand in your homework." → 学生交作业。
你当学生：老师说 "Work in pairs." → 你和同桌开始对话。
练习 C · 挑战（2 分钟）
用 there is/are 说 5 句描述你的教室，至少用到 next to / under / on the wall。
Examiner: What are the rules in your classroom? You: In our classroom, we must be quiet and listen carefully. We open our books when the teacher asks. We put up our hands before we speak. We don't eat or drink in class, and we hand in our homework on time.
基础 2填空：There ___ 20 desks in the classroom.（is / are）
are。20 desks 复数。
基础 3选词：___ your books, please.（Open / Opening）
Open。祈使句动词原形开头。
基础 4选词：___ eat in the classroom.（Don't / Not）
Don't。否定祈使句。
基础 5填空：The bookshelf is next ___ the window.（to / on）
to。next to 固定搭配。
基础 6选词：Be quiet ___ class.（in / in the）
in。in class = 上课，不加 the。
进阶 7填空：There ___ a pen and two books on the desk.（is / are）
is。就近原则，最近是 a pen。
进阶 8改错：You open your books, please.
Open your books, please. 祈使句不加 you。
进阶 9填空：Please hand ___ your homework.（in / on）
in。hand in 上交。
进阶 10选词：We work ___ pairs.（in / on）
in。in pairs 两人一组。
进阶 11完形：There (1) ___ (be) a map on the wall. There (2) ___ (be) two doors at the back. The teacher's desk is (3) ___ the front of the classroom.
(1) is；(2) are；(3) at。
进阶 12改错：Not talk in class.
Don't talk in class. 否定祈使句用 Don't。
挑战 13（写规则）用祈使句写 3 条你的教室规则（肯定/否定各至少一条）。
参考：Be quiet in class. Put up your hand before you speak. Don't eat in the classroom.
挑战 14（描述教室）用 there is/are 写 5 句描述你的教室。
参考：There is a big board at the front. There are 20 desks. There is a map on the wall. The bookshelf is next to the window. There is a rubbish bin under the teacher's desk.
挑战 15（KET Part 5 风格）用本课词填空：___ your books to page 10. Please ___ carefully. There ___ 20 desks. Don't eat ___ class.
Open / listen / are / in。
挑战 16（25 词短消息）给新同学写一条消息，告诉他 3 条课堂规则。
参考：Hi Jack, Welcome to our class! Here are our rules: Be quiet when the teacher talks. Put up your hand before you speak. Don't eat or drink in class. See you tomorrow! Anna（44 词）
挑战 17（改错 3 处）There is 30 desks in our classroom. You open your books and listen careful. Not eat in class.
① is → are（30 desks 复数）；② 去掉 You，listen careful → listen carefully（副词）；③ Not → Don't。
挑战 18（口头输出）当 1 分钟小老师：用英语说 5 句课堂指令，包括 1 条否定规则。
参考：Good morning, class! Open your books to page 12. Listen carefully. Work in pairs. Don't talk when others speak. Thank you.
⑪ 记忆口诀与 7 天复习计划
三句口诀
① 祈使句：动词原形开头，肯定 open / listen，否定 Don't + 原形。
② there is 跟单数，there are 跟复数；就近原则别忘记。
③ next to 紧挨着、under 在下面、on the wall 在墙上；in class 不加 the。