1这里很少下雪　.ppt

Unit 1; Overview of tenses1:present tenses;we use the simple present tense to talk about things that: 1.I am at a comedy show. 2.The sun rises in the east. 3.The Academy Award show is on television every year. 4.Every time a prop comedian tells a joke, he or she uses a thing, called a prop.;1这里很少下雪 2他喜爱体育运动 3太阳从东方升起 4他总是乐于助人;Time marker: usually; always; seldom; often; sometimes; frequently; every day; every week; on sundays;Note 2 1.It’ll be a long time before we ______(meet) again. 2.Even if it ______(rain) tomorrow, we’ll go. 3.I’ll call on you unless it ______(rain) tomorrow. 4.I’ll stay with you so long as there_______(be) is a room free. ;Note 3 1.The plane takes off at 10 a.m.tomorrow. 2.We leave for Beijing next week. 3.The film starts at 7 p.m. this evening 4.My birthday is in two week’s time.;Note 4 1.Look! Here comes the bus! 2.There goes the bell!; ;3.You look lovely when you are smiling.;---time marker: now; right now; at present; at the present time; for the moment; these days/years;Note 1 1.How many of you are coming to the party tonight? 2.A foreigner is giving a lecture in English this afternoon.;We use the present perfect tense to talk about how the past and present are connected. We use it for: 1. experiences that are repeated. 2.things that happened in the past, but have an effect on the present . 3.things that started in the past and are still happening now.;1. experiences that are repeated ① He has hosted the show eight times. ② Bill Crystal has been in many films and television shows. 2. things that happened in the past, but have an effect on the present ① Doctors have found that people who laugh a lot live longer! ② Some stand-up comedians have became famous as television and film actors later on in life .; 3. things that started in the past and are still happening now. ① People have always enjoyed laughing . ② Comedians have always told jokes and perform