Lesson 51Where did they go? playerplayerFree talkWhat do you like to do to have fun?• What is the most expensive thing you have bought?Listen and answerWhat do Mrs. Smith and Li Ming disagree about?Li Ming thinks that thirty-two dollars is expensive, but Mrs. Smith doesn’t think so. Tenses Put the following sentences into English (1) 我正在看书 . (2) 他会来 . (3) 我昨天没做作业 (4) 他从周一至周五去学校(1)I’m reading a book.(2)He will come.(3)I did not do my homework yesterday.(4) He goes to school from Monday to Friday.DIFFERENCESEnglish Chinese 我们每天打扫教室。我们正在打扫教室。明天我们将要打扫教室。昨天我们打扫了教室。We clean the classroom every day. .We are cleaning the classroom now. We will clean the classroom tomorrowWe cleaned the classroom yesterday.英语中谓语动词有 不同时态不同时态与时间状语一致1.The sun 1.The sun risesrises in the east. in the east. 2.They 2.They are playingare playing video games at the moment. video games at the moment. ( 一般现在时 )( 现在进行时 )Make out what tenses they are.3. He 3. He will tellwill tell you something interesting. you something interesting. 4.The musician4.The musician hadhad a very nice piano in 1980. a very nice piano in 1980. ( 一般将来时 )（一般过去时）Now let’s analyze each tense.一、一般现在时 ( The Present Indefinite Tense)1 、用法 :（ 1 ）表示经常反复发生的动作Father often _______( go) to work on foot.goes（ 2 ）表示现在的状态或主语的特征He _____(be) busy at the moment.is（ 3 ）表示客观真理、谚语等Trains _____(run) faster than cars.run2 、 句子基本结构 ：肯定句： S ( 主语 )+ 动词原形 / 动词第三人称单数 +…… 否定句 : S +don’t/doesn’t + 动词原形 +……疑问句： Do/does+S + 动词原形 +……? 3 、常与下列时间状语连用 : 通常与表示频度（即动作发生的次数多少）意义的副词或词组连用 ...
