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来源：网络资源 2022-07-12 10:23:45
肯定句：
口诀：我和你都用have，has用于他、她、它，所有复数都用have。
第一人称：I have…
第二人称：You have…
第三人称：He/She/It/Jim has…
复数：They/The girls/The boys/The children/Jim and Tom have…
否定句：
第一人称：I don't have…
第二人称：You don't have…
第三人称：He/She/It/Jim doesn't have…
复数：They/The girls/The boys/The children/Jim and Tom don't have…
疑问句：
第一人称：DoI/we have…
第二人称：Doyou have…
第三人称：Dothey have…
Doeshe/she/it have…
1.在肯定句中，当主语为第三人称单数，或单数可数名词时，have要变成相应的单数形式has.主语为其他人称和数时，则用have.
① I have a cat.(我有一只猫。)
② You have a farm.(你有一个农场。)
③ They have pears.(他们都有梨子。)
④ It hasa long tail.(它有一根长尾巴。)
⑤ She hastwo big eyes.(她有一双大眼睛。)
⑥ He hasa cat.(他有一只猫。)
⑦ Tom hasa sister.(汤姆有一个姐姐。)
2.实义动词have(有)的一般现在时的肯定句在变为否定句时，要借助助动词do和does，且have要用原形。如果主语是第三人称单数，助动词要用does，当主语是其他人称时助动词用do.
① I have a cat. / I don'thave a cat.
② You have a farm. / You don't have a farm.
③ They have pears. / They don'thave pears.
④ It has a long tail. / It doesn'thavea long tail.
⑤ She has two big eyes. / She doesn't havetwo big eyes.
⑥ He has a cat. / He doesn't havea cat.
⑦ Tom has a sister. / Tom doesn't havea sister.
3.在进行疑问句转换时，要借助助动词do/does.在句首用do/does，同时将has还原成have.
肯定句用“Yes，主语+do/does.”回答。
否定句用“No，主语+don't/doesn't.”回答。
① You have a farm.
→ Do you have a farm?
→ Yes，I do. / No，I don't.
② They have pears.
→ Do they have pears. ?
→ Yes，they do. / No，they don't.
③ It has a long tail.
→ Does ithave a long tail?
→ Yes，it does. / No，it doesn't.
④ She has two big eyes.
→ Does she havetwo big eyes?
→ Yes，she does. / No，she doesn't.
⑤ He has a cat.
→ Does he havea cat?
→ Yes，he does. / No，he doesn't.
⑥ Tom has a sister.
→ Does Tom havea sister?
→ Yes，he does. / No，he doesn't.
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