Unit 6 Energy（易错题专项训练・语法提升）英语人教PEP版六年级上册（新教材）

Unit 6 Energy, nature and us

专题01语法提升·易错题专项训练

should /shouldn't 完整变换规则

should 是情态动词，后必须加动词原形，无人称变化，否定直接加 not=shouldn't，无课文原句标注。

1 基础陈述句（肯定）

结构：主语 + should + 动词原形

例：You should save energy. We should turn off the lights.

2 否定句变换

结构：主语 + shouldn't + 动词原形

例：You shouldn't waste water.

3 一般疑问句变换

结构：Should + 主语 + 动词原形？

肯定回答：Yes, 主语 should.

否定回答：No, 主语 shouldn't.

例：—Should we take quick showers? —Yes, we should.

should 没有三单变形，任何人称后面都用原形动词；不能写 shoulds /should to do。

一、用 should /shouldn't 填空

1. You ____ leave the lights on. It wastes energy.

2. We ____ save energy every day.

3. She ____ take long showers.

4. I ____ turn off the lights when I leave.

5. ____ we use solar ovens to cook?

二、单项选择

(    ) 1. You ____ waste water.

A. should                             B. shoulds                           C. shouldn't

(    ) 2. —Should we turn off the lights? —Yes, you ____.

A. shouldn't                         B. should                             C. are

(    ) 3. He ____ save energy every day.

A. should to                         B. shoulds                           C. should

come from 句型三单变形规则

表达某物来自哪里，主语人称不同，动词 come 发生三单变化，纯句子语法，不辨析单词词义。

1 非三单主语（I /you/we /they）：主语 + come from + 地点

例：We come from China.

2 三单主语（it /he/she / 单数事物名词）：主语 + comes from + 地点

例：It comes from the sun. Solar energy comes from the sun.

3 疑问句结构

三单疑问：Where does + 单数主语 + come from?

非三单疑问：Where do + 复数主语 + come from?

助动词 does 出现之后，come 必须变回原形；没有 does，三单主语动词要加‑s 变为 comes。

一、用 come /comes 填空

1. Solar energy ____ from the sun.

2. They ____ from water and wind.

3. Coal ____ from underground.

4. We ____ from China.

5. Water power ____ from water.

二、单项选择

(    ) 1. Solar energy ____ from the sun.

A. come                               B. coming                           C. comes

(    ) 2. Where does wind power ____ from?

A. comes                             B. come                               C. coming

Where does…come from? 划线提问拔高

本单元核心特殊疑问句，针对来源、事物划线提问，是必考转换题型。

1 对来源地点划线提问

原句：Solar energy comes from the sun.（对划线部分提问）

→ Where does solar energy come from?

2 对主语事物划线提问

原句：Water power comes from water. （对划线部分提问）

→ What comes from water?

3 答句区分

Where 提问回答地点来源；What 提问回答事物名称。

 

 

 

参考答案

一、用 should /shouldn't 填空

1. shouldn't 2. should 3. shouldn't 4. should 5. Should

二、单项选择

1.C 2.B 3.C

一、用 come /comes 填空

1.comes 2.come 3.comes 4.come 5.comes

二、单项选择

1.C 2.B

1. Where does solar energy come from?

2. Where does water power come from?

3. Where does coal come from?

4. What comes from wind?

5. Where do they come from?

1.C 2.C 3.B 4.C 5.B