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來源：網絡資源 2022-07-12 10:23:45
肯定句：
口訣：我和你都用have，has用于他、她、它，所有復數都用have。
第一人稱：I have…
第二人稱：You have…
第三人稱：He/She/It/Jim has…
復數：They/The girls/The boys/The children/Jim and Tom have…
否定句：
第一人稱：I don't have…
第二人稱：You don't have…
第三人稱：He/She/It/Jim doesn't have…
復數：They/The girls/The boys/The children/Jim and Tom don't have…
疑問句：
第一人稱：DoI/we have…
第二人稱：Doyou have…
第三人稱：Dothey have…
Doeshe/she/it have…
1.在肯定句中，當主語為第三人稱單數，或單數可數名詞時，have要變成相應的單數形式has.主語為其他人稱和數時，則用have.
① I have a cat.(我有一只貓。)
② You have a farm.(你有一個農場。)
③ They have pears.(他們都有梨子。)
④ It hasa long tail.(它有一根長尾巴。)
⑤ She hastwo big eyes.(她有一雙大眼睛。)
⑥ He hasa cat.(他有一只貓。)
⑦ Tom hasa sister.(湯姆有一個姐姐。)
2.實義動詞have(有)的一般現在時的肯定句在變為否定句時，要借助助動詞do和does，且have要用原形。如果主語是第三人稱單數，助動詞要用does，當主語是其他人稱時助動詞用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.在進行疑問句轉換時，要借助助動詞do/does.在句首用do/does，同時將has還原成have.
肯定句用“Yes，主語+do/does.”回答。
否定句用“No，主語+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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