herunseveryday改为一般否定句?
原句:He runs every day.(他每天都跑步。)
否定句:He do not run every day.(他不是每天都跑步。)
英语中陈述句改为否定句怎么改?
1、句中有be动词(am/is/are/was/were)的,在be动词后加not。
如:I can swim.——I can't swim.
He is a math teacher. → He is not a math teacher.
2、句中有情态动词的(can/should/must/would),在情态动词后面加not;
如:There will be a new building next year. → There will not be a new building next year. (will not可以缩写为won’t)
3、句中没有be动词和情态动词的,在动词前加don’t或doesn’t
① 句中动词为原形的,加don’t .如: I like apples. I don’t like apples.
②句中动词为三单式的,加doesn’t,并将三单式的动词还原成原形。
如:He likes apples. He doesn’t like apples.
4、肯定句中的some在否定句中应改为any
如:There are some students in the classroom. There are not any students in the classroom.
特殊形式的否定句:
(1)肯定句含有every-的合成词时,变否定句时改为no-。
如:Everything is ready.→Nothing is ready.
(2)肯定句中含有always, usually和ever时,变否定句时改为never。
如:He is always late for school.→He is never late for school.
(3)肯定句含有many,much时,变否定句时分别改为few,little。
如:Many students know him.→Few students know him.
(4)肯定句中含有still时,变否定句时应改为no longer。
如:Tom is still in bed.→Tom is no longer in bed.
(5)肯定句含有both, both...and,all时,变否定句时应改为never,neither...nor,none。
如:Both of us are students.→Neither of us is a student.
(6)肯定句含有nearly, almost时,变否定句时应改为 hardly。
如:Lily nearly knows him .→Lily hardly knows him .
(7)肯定句含有“形容词+ enough”时,变为否定句时应改为“too +形容词的反义词”。
如:He is short enough to reachit.He is too tall to reach it.
一、解析
首先这句话没有be 动词也没有情态动词,然后根据 runs 判断主语是第三人称单数,并且是一般现在时。所以否定句在实意动词 runs前面加入doesn't ( does not ),动词还原为 run 所以否定句是
He doesn't / does not run every day.(他不是每天都跑步的。)
二、拓展——变句思路
(1)有 be ,be后面加 not
例一: He is my uncle .(他是我的叔叔)
这句话里面有be 动词 is,否定句在 be 动词 is 后面加not,is not 可以完整写,也可以缩写为 isn't
即 否定句:He is not / isn't my uncle .(他不是我的叔叔。)
(2) 有 can,can后面加 not
例二: She can dance .(她会跳舞,)
这句话里面有情态动词 can,所以否定句在can 后面加 not ,can not 可以完整写,也可以缩写为 can't
即 否定句:She can not / can't dance .(她不会跳舞。)
(3)无 be 无 can找实意动词,前面加don't 或 doesn't,此时动词需要还原
例三: She wants to go to the park .(她想要去公园。)
这句话 dances判断句子一般现在时,并且第三人称单数,所以实意动词 wants 前面加入找动词 doesn’t ,动词还原为want。
即 She doesn't want to go to the park.
(4) and 变成 or,some 变成 any 。
所以这句话里面没有be动词也没有情态动词can,主语第三人称单数所以实意动词用了第三人称单数形式 runs,所以在 runs 前面加入 doesn't此时动词 runs 还原为 run 。
即否定句: He does not / doesn't run every day.
三、拓展训练
把下面句子改为否定句
She goes to school by bus.
否定句:She doesn't/does not go to school by bus.
Mike likes playing football.
否定句:Mike doesn't/does not like playing football.
She doesn't run every day.
首先,我们需要确定句子主语,即 "she",表示 "她"。
接下来,我们使用一般否定词 "doesn't" 来否定动词 "run"。在第三人称单数形式中,一般否定句使用辅助动词 "does"(变为 "doesn't")加上动词的原形形式。
最后,我们将副词 "every day" 保持不变,表示 "每天"。
因此,在将 "herunseveryday" 转换为一般否定句时,我们得到的答案是 "She doesn't run every day.",意思是 "她不每天跑步。"
要将肯定陈述句转换为一般否定句,可以按照以下步骤进行:
找到句子中的助动词。在现在时态的一般肯定句中,通常使用助动词 "do" 或 "does"。
将助动词改为否定形式。在一般否定句中,使用 "do not" 或 "does not",缩写为 "don't" 或 "doesn't"。
在助动词后面加上动词的原形形式。
比如题目这个,我们将转换句子 "She runs every day." 为一般否定句:
句子中没有助动词 "do" 或 "does"。因此,在转换时,我们需要添加一个助动词。
主语 "she" 指的是第三人称单数,所以我们使用 "does" 作为助动词。
将助动词 "does" 改为否定形式 "doesn't"。
在 "doesn't" 后面保持动词的原形形式 "run"。
最后,我们得到一般否定句:"She doesn't run every day.",意思是 "她不每天跑步"。