内容正文:
Unit 5 Work it out.知
识
归
纳
语音语调
字母组合oi/oy发 /ɔɪ/ 音:choice, boy;
殊疑问句为降调,例:What did ancient people put in it?↘
必记单词
coin 硬币,strange 奇怪的,carefully 仔细地,its 它的,detective 侦探,prison 监狱,steal 偷,jewel 珠宝,shiny 闪亮的,aha 啊哈,message 信息,another 另一个,north 北方
常考短语
work out 解决,ask for help 求助,take a deep breath 深呼吸,put…into… 把…… 放进,give up 放弃,come to an end 结束,all one’s life 一生,protect… 保护……,take care of 照顾,climb snowy mountains 爬雪山,cross the grasslands 穿越草原
必会句型
一般过去时特殊疑问句:What did he do? / How did she solve the problem?
过去行为描述:He stole many jewels. / She used some leaves to help.
原因询问与回答:Why did he write the letter? / He wanted to tell her where the jewels were.
能力表达:We can work out the message.
祈使句:Don’t give the letter to his wife.
核心语法
一般过去时特殊疑问句:特殊疑问词 + did + 主语 + 动词原形。
实义动词不规则过去式:steal→stole, find→found, come→came, take→took, dig→dug。use…to… 用法:use + 工具 + to do sth,表 “用…… 做某事”。
to do 不定式表目的:后接动词原形,表示 “为了……”。
祈使句否定:Don’t + 动词原形,表示 “不要做某事”。
考
点
速
记
考点 01
考点 01 一般过去时特殊疑问句(did 引导)
例句:
What did he do?(他做了什么?)
解析:核心结构为 “特殊疑问词 + did + 主语 + 动词原形 + 其他”,did 为助动词,后接动词原形,用于询问过去发生的具体动作。
拓展:可替换疑问词(when/where/why/how),如 How did she work it out?(她是怎么解决的?),答句用一般过去时陈述句。
提分练
1、 单项选择。
( ) 1. ______ did he do?
A. What B. When C. Where
( ) 2. ______ did he write to?
A. Who B. Which C. Whose
( ) 3. How ______ she solve the problem?
A. do B. does C. did
二、按要求完成句子
He stole many jewels.(对划线部分提问)
______ ______ he ______?
She used leaves to find her way.(对划线部分提问)
______ ______ she ______ her way?
考点 02
考点 02 一般过去时实义动词不规则变化
化例句:
He stole many jewels.(他偷了很多珠宝。)
解析:本句中 steal 的过去式为 stole,属于不规则变化,无固定加 -ed 规则,需单独熟记。
拓展:本单元不规则变化:steal→stole, find→found, come→came, take→took, dig→dug,主语任何人称形式不变。
单项选择
( ) 1. He ______ many jewels.
A. steal B. stole C. steals
( ) 2. They ______ the message in the letter.
A. find B. found C. finds
( ) 3. She ______ a plan to work it out.
A. take B. took C. takes
二、用所给单词的适当形式填空
1.He ______ (steal) the jewels last month.
2.They ______ (find) the secret in the letter.
3.She ______ (come) to help the police.
考点 03
考点 03 use…to… 表方式 /to do 表目的
例句:
She used some leaves to help.(她用一些叶子来帮忙。)
解析:used…to… 表示 “用…… 做某事”,to 后面接动词原形,说明动作的方式或目的。
拓展:to do 放句末表目的,意为 “为了……”,如 They read the letter to find the secret.
提分练
一、单项选择。
( ) 1. She used leaves ______ help.
A. to B. for C. with
( ) 2. We read the letter ______ find the message.
A. and B. to C. so
( ) 3. He wrote ______ tell her the secret.
A. in B. at C. to
二、连词成句
1.use, leaves, she, to, help (.)
_______________________________________________________________
2.work out, we, the message, to, read, the letter (.)
_______________________________________________________________
考点 04
考点 04 祈使句否定(Don’t…)
例句:
Don’t give the letter to his wife.(不要把信给他的妻子。)
解析:Don’t + 动词原形,构成否定祈使句,表示 “禁止、不要做某事”。
拓展:肯定祈使句:Give the letter to me. 否定直接在句首加 Don’t。
提分练
单项选择
( ) 1. ______ give him the letter.
A. Not B. Don’t C. Can’t
( ) 2. ______ open the door.
A. Don’t B. Not C. Isn’t
参考答案
考点 01 提分练
一、1.A 2.A 3.C
二、What did; do / How did; find
考点 02:
一、1.B 2.B 3.B
二、stole /found/came
考点 03:
一、1.A 2.B 3.C
2、 She used leaves to help. / We read the letter to work out the message.
考点 04:
1.B 2.A
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