be动词-情态动词及助动词用法

七年级英语七年级英语 双休日作业双休日作业 班级 班级 姓名 姓名 等级等级 英语句型变化总结练习英语句型变化总结练习 1 含有 含有 be 动词动词 am is are 构成的句子 构成的句子 变一般疑问句时把变一般疑问句时把 am is are 提到句子的前面 句尾用问号即可 提到句子的前面 句尾用问号即可 变否定句时直接在变否定句时直接在 am is are 后面加后面加 not 即可 例如 即可 例如 肯定句肯定句 He is a student 一般疑问句一般疑问句 a student 否定句否定句 He a student 肯定句 肯定句 We are from China 一般疑问句一般疑问句 from China 否定句 否定句 We from China 2 由情态动词由情态动词 can may should 等构成的句子等构成的句子 变一般疑问句时把变一般疑问句时把 can may 提到句子的前面提到句子的前面 句尾用问号即可句尾用问号即可 变否定句时直接在变否定句时直接在 can may 后面加后面加 not 即可即可 例如例如 肯定句肯定句 She can swim 一般疑问句一般疑问句 she swim 否定句否定句 She swim 3 由行为动词构成的句子由行为动词构成的句子 需要加助词需要加助词 do 或或 does 变一般疑问句时把变一般疑问句时把 do does 放在句子前面放在句子前面 变否定句时在主语后面加变否定句时在主语后面加 don t doesn t 谓语用动词原形 例如谓语用动词原形 例如 肯定句肯定句 They play football after school 一般疑问句一般疑问句 play football after school 否定句否定句 They football after school 肯定句 肯定句 Tom watches TV every day 一般疑问句一般疑问句 Tom TV every day 否定句否定句 Tom TV every day 注意 变否定句时相关词的改变注意 变否定句时相关词的改变 肯定句变否定句时 除将谓语变为否定式外 句中其他词语也 可能随之改变 如将 some 改为 any too 和 also 改为 either and 改为 or 等 There are some birds in the tree 树上有些鸟 There aren t birds in the tree 树上没有鸟 He likes the book too 他也喜欢这本书 He doesn t like the book 他也不喜欢这本书 He likes singing and dancing 他喜欢唱歌和跳舞 He doesn t like singing dancing 他不喜欢唱歌 也不喜欢跳舞 补充练习 补充练习 根据句后括号内的要求 填入句中所缺的词 根据句后括号内的要求 填入句中所缺的词 1 I know the answer 一般疑问句一般疑问句 know the answer 2 We can see some birds 一般疑问句一般疑问句 see birds 3 There is a computer in the house 一般疑问句一般疑问句 a computer in the house 4 There are some flowers on the teachers desk 一般疑问句一般疑问句 any flowers on the teachers desk 5 There are some apples on the tree 否定式否定式 There apples on the tree 6 I think he is old 否定句否定句 I think he old 7 Open the window 否定句否定句 open the window 8 We can speak good English 变否定句变否定句 We speak good English 9 Thank you for helping me 同义句同义句 Thank you for 10 Whose is this book 同义句同义句 is this 11 This is her book 同义句同义句 This book 12 Her sweater is red 对划线部分提问对划线部分提问 is her sweater 13 My pencils are in the pencil box 对划线部分提问对划线部分提问 your pencils 14 I get up at six every day 对划线部分提问对划线部分提问 do you get up every day 15 There are fifty students in my class 对划线部分提问对划线部分提问 students are there in your class 16 These are cars 用用 buses 改写成选择疑问句改写成选择疑问句 Are these cars 17 The book is in my schoolbag 变疑问句变疑问句 the book in your school bag 18 Two boys are in our house 改为改为 t