Have been sitting

动词的时态 备考要点：英语中常用的时态有12种。在英语（一）考试的词形填空题中，经常被测试的动词时态有：一般现在时、一般过去时、一般将来时、现在进行时、现在完成时、过去完成时，且题目中一般都有明显的时间暗示。   特别提示： 1）特殊记忆一些不规则动词的过去式和过去分词。 2）特殊记忆一些暗示一般现在时、一般过去时、现在完成时和过去完成时等时态的时间状语。具体如下： 1.一般现在时 1) 一般现在时常与often, always, usually, sometimes, everyday1, once a week等时间状语连用。 2) 一般现在时表示客观事实或普遍真理。 3）第三人称单数作主语时，动词后要加-s 标志词：often, always, usually, every day, once a week               He takes a walk after supper every day. How often do you wash your hair?   Sometimes information in the long-term2 memory is___ (be) hard to remember．(4B 2000 上 ) 2.一般过去时 标志词：yesterday, last week, three years ago, in 1987 He lived in London when he was young.   In the l600’s，travelers from Europe_brought__ (bring) back diamonds3 from India．(6A 2000 上 ) 3.一般将来时 Will (shall) + 动词原形 Am (is, are) going to +动词原形 Am (is, are) about to +动词原形 Am (is, are) to +动词原形 We’ll have to be careful in doing business with them. 4.现在进行时 Am (is, are)  + doing What are you doing? I’m doing some washing4.     5.现在完成时 1)现在完成时不能使用明确表示过去时间的状语，例如：yesterday, last week, in 1993等。 2)现在完成时可以和already, never, ever, not…yet等副词连用。@ 3)现在完成时常和since引导的短语或从句，或由for引导的表一段时间的短语连用。 Have (has) + 过去分词 I haven’t seen her since 1991.           Have been sitting   Has’t paid   Had seen   Was making   Has been working   Am preparing   Has happened   The earth goes around the sun.   Water boils at 100 degrees.   He does’t take a walk after supper every day.   Does he take a walk after supper every day?   I am a teacher.   I am not a teacher.   Are you a teacher?   What’s your father?   What does your father do?   Be from    com from   Where is your sister from?   Where does your sister come from?   It rains every Wednesday.   He goes to school by taxi every day.   How does he go to school every day.   What did you do 3 years ago?   Just now a moment ago   I received a gift just now.   He was a policeman a years ago.   Was were   Did   Say—said   Learn—learned5/learnt   Read—read   Look—looked   Listen—listened   Speak—spoke       We will finish the course 3 weeks later.---in 3 weeks.   My mum will come to see me in 3 days.   My mum will come to see me within6 3 days.   Will not=won’t   I won’t smoke.   I am having English class.   Look, they are playing the football.   Is your brother watching TV?   I am coming.   Go, come, arrive, leave, setoff,   She is leaving for HongKong.   I have had/kept the book for 3 weeks.   I have already learned 3000 words.   Have you ever been to SH?   I have never been there?

1 everyday   

adj.每天的，日常的，平常的

参考例句：

• Sweeping the floor is his everyday work.扫地是他的日常工作。
• He practices speaking English everyday.他每天练习说英语。

2 long-term   

adj.长远的，长期的

参考例句：

• It isn't a long-term policy.这不是长久之计。
• We must calculate on a long-term basis.我们要作长期打算。

3 diamonds   

n.菱形( diamond的名词复数 )；方块牌；金刚钻；[常用复数]（项链、戒指等）钻石饰物

参考例句：

• a crown encrusted with diamonds 镶满钻石的王冠
• The crown was set with precious jewels—diamonds, rubies and emeralds. 王冠上镶嵌着稀世珍宝—有钻石、红宝石、绿宝石。

4 washing   

n.洗，洗涤，洗衣，洗脸，洗澡，冲洗，冲刷

参考例句：

• A washing machine is run by a small electric motor.洗衣机由一台小电动机驱动。
• She hung the washing on the line to dry.她把洗好的衣服晾在绳子上。

5 learned   

adj.有学问的，博学的；learn的过去式和过去分词

参考例句：

• He went into a rage when he learned about it.他听到这事后勃然大怒。
• In this little village,he passed for a learned man.在这个小村子里，他被视为有学问的人。

6 within   

n.内部，里头；adv.在内部，在内心里；prep.在…之内

参考例句：

• The work must be done within the given time.这个工作必须在规定的时间内完成。
• Within two weeks,she gained five pounds in weight.两周内她的体重增加了5磅。