be動(dòng)詞的陳述句變成疑問句,把be動(dòng)詞直接提前就可以了.（注意換標(biāo)點(diǎn)符號(hào)）
例：
I am a good boy. → Am I a good boy ?
我是個(gè)好孩子.→我是個(gè)好孩子嗎?
You are tired. → Are you tired ?
你累了.→你累嗎?
He/She is helpful. → Is he/she helpful ?
他/她 樂于助人.→他/她 樂于助人嗎?
使用一般動(dòng)詞的陳述句變成疑問句,就需要借助助動(dòng)詞do來完成了.
句型：Do + I/you/they/復(fù)數(shù)名詞 + 動(dòng)詞原形
Does + she/he/it/單數(shù)名詞 + 動(dòng)詞原形
例：（注意換標(biāo)點(diǎn)符號(hào)）
I like books. → Do you like books ?
我喜歡書.→你喜歡書嗎?
You play computer games every day . → Do you play computer games every day ?
你每天都在玩電腦游戲.→你每天都在玩電腦游戲嗎?
They have a lot of time. →Do they havea lot of time ?
他們有很多時(shí)間.→他們有很多時(shí)間嗎?
She eats much. → Does she eat much ?
她吃得多.→她吃得多嗎?
He washes his own clothes. → Does he wash his own clothes ?
他自己洗衣服.→他自己洗衣服嗎?
It blows a lot in the north of China. → Does it blow a lot in the north of China?
中國的北方經(jīng)常刮風(fēng).→中國的北方經(jīng)常刮風(fēng)嗎?