5、more than / less than分别可以理解为“多于/少于”,相当于副词,more than=over; less than=under.如：I lived in New York for more than four months.(我在纽约生活了四个多月)
6、“one of the +最高级+名词(复数)”整个短语为单数含义,谓语要用单数形式。如：One of the oldest houses has been burnt in a fire.(最古老的一幢房子在一场大火中被烧毁了)
7、“Which / Who+动词+形/副,□,□or□?”句型中,如果有两个选项,形/副用比较级,如果有三个选项,形/副用最高级。如：Who has more books, Lin Tao or Han Mei?(林涛和韩梅谁的书最多？)/ Which is the heaviest,a pig,a horse or an elephant?(猪、马、象哪个最重？)
8、上下文中含有both/either/neither/two/twins等表示两个事物的词时,用比较级,而且往往还要加the；含有all/none/no one/ every 等表示三个或三个以上事物时,用最高级。如： --Do you like the smaller one?—Neither.(小一点的那个你喜欢吗？一个都不喜欢)/ --Which do you like best? ?All of them!(你最喜欢哪个？全部。)
七、介词：
1、介词的主要用法：
介词是一种虚词,不能独立使用。介词之后一般有名词或代词(宾格)或相当于名词的其他词类、短语或从句作它的宾语,即构成介词短语。有些介词是由两个以上的词构成的短语介词,如：out of(从…中出来), because of(因为), away from(距离…), on top of(在…顶上), ever since(自从…), next to(在…隔壁), according to(根据…), in front of(在…前方)等。
2、介词的分类表： (见下表)
地点(位置、范围)介词：above在…前, about在…附近, across在…对面, after在…后面, against倚着..., along在…近旁, among在…中间, around在…周围, round在….周围, at在…处, before在...前, behind在...后, below低于..., beside在...旁边, between在...之间, by在...旁, down在...下面, from来自..., in在...里面, inside在...里面, near靠近..., of在...之中, on在...上面, out of在...之外, outside在....外面, over在....上方, under在...下方, up在...上面, on top of在...顶部, in front of在...前, close to靠近..., in the middle of在...的中间, at the end of在...的末端,等等。
方向(目标趋向)介词：across横越..., against对抗..., along沿着..., around绕着..., round环绕..., at朝着..., behind向…后面, etween…and…从…到...,by路过/通过..., down向…下, for向..., from从/离..., in进入..., into进入..., inside到...里面, near接近..., off脱离/除..., on向...上, out of向...外, outside向....外, over跨过..., past经过/超过..., through穿过..., to向/朝..., towards朝着..., on to到...上面, onto到...上面, up向...上, away from远离...
时间介词：about大约..., after在…以后, at在… (时刻), before在…以前, by到…为止, during在…期间, for有…(之久), from从…(时)起, in在(上/下午);在(多久)以后, on在(某日), past过了…(时), since自从…(至今), through 贯穿…(期间), till直到…时, until直到…时, to到(下一时刻), ever since从那时起至今,at the beginning of在...开始时 ,at the end of在...末 , in the middle of在...当中 ,at the time of在...时
方式介词：as作为/当作..., by用/由/乘坐/被..., in用…(语言), like与…一样, on骑(车)/徒(步),通过(收音机/电视机), over通过(收音机), through通过..., with用(材料),用(手/脚/耳/眼), without没有…
涉及介词: about关于..., except除了…, besides除了…还... for对于/就…而言, in在…(方面), of…的,有关..., on关于/有关..., to对…而言, towards针对..., with就…而言
其它介词:
【目的介词】 for为了..., from防止…, to为了…
【原因介词】 for因为..., with由于…, because of因为...
【比较介词】 as与…一样,like象…一样,than比...,to与…相比, unlike与…不同
【伴随/状态介词】 against和…一起(比赛),at在(上班/休息/上学/家,etc.),in穿着…(衣服/颜色),into变成...,on在(值日), with与…一起,有/带着/长着..., without没有/无/不与…一起
3、介词短语的句法作用：
介词短语相当于一个形容词或副词,可用作状语、定语和表语。如：The man came
4、在句子中的位置：
介词短语做状语时,如果表示时间/地点,可以放在句首或句尾,如果表示方向/方式/伴随/涉及/原因/目的/比较,一般放在句尾； 介词短语作表语时放在连系动词之后；介词短语作定语时,只能放在被修饰的名词之后。如：He wanted to find a good job in Shanghai the next year.(状语)(他想来年在上海找份好工作)/ They searched the room for the thief.(他们在房间里搜索小偷) / The letters are for you.(表语)(信是给你的)/ Have you seen a cat with a black head and four white legs?(定语)(你看见一只黑头白腿的猫了吗？)
5、重要注释：
⑴ this / that / these / those / last / next / a / every / each等词构成的时间短语,前面不用任何介词。如：Every year travellers from abroad come to visit Pingyao.(每年都有国外的游客来游览平窑镇)/ He had a bad cold that week.(那个星期他患重感冒)
⑵ for有时用来引出动词不定式的逻辑主语,常翻译成“对于…而言”。如：It’s too hard for me to finish the work in only one hour.(让我在区区一个小时内完成这项工作太难了)/ The house is big enough for 10 men to live in.(房子够大的可以容10个人住)
⑶ of有时用来表示后面的人物正好是前面的表语的逻辑主语。如：It’s very nice/kind of you to do so.(你这么做真是太好了)
⑷ 介词有时会与它的宾语分离,而且宾语前置。
① 当宾语是疑问词时。Who are you talking about?(你们在谈论谁？)
② 宾语在从句中当连接词时。He has a younger brother who he must take good care of.(他有 一个需要他照顾的小弟。) / Do you know who our teacher is talking with over there?(你知道我们的老师在那边和什么人谈话吗？)
③ 动词不定式作定语且该动词为不及物动词,后面有介词。I finally found a chair to sit on.(我 最终找到了一张椅子坐。)
(5) 记住一些固定词组：arrive at/in(到达…),on foot(步行),not…at all(根本不),to the north of(在…以北),in the east of(在…的东部),in the night(在夜间),at night(在晚上),be afraid of(害怕…),be full of(充满/ 装满….),be filled with(充满/ 装满….),be good/bad for(对…有益/有害),be made of(由…做成),be made from(由…制造),play with(玩耍……),look out of(朝…外面看),at the end of(在…末梢/结束时),by the end of(不迟于…/到…末为止),with the help of或with one’s help(在…的帮助下),look after(照料…),look for(寻找…),on a bike(=by bike)骑车, help sb. with(帮某人做…),get on (well) with(与某人相处[融洽]),等等。
6、某些介词的用法辨析：
⑴ 时间或地点介词in、on、at的用法区别：表示时间时, in表示在一段时间里(在将来时句子中则表示在一段时间之后), on表示在具体的某一天或者某天的上下午等, at表示在某个时刻或者瞬间； 表示地点时, in表示在某个范围之内, on表示在某个平面上或与一个面相接触,at则表示在某个具体的场所或地点。如：He was born on the morning of May 10th.(他出生于五月十日的早晨)/ I usually get up at 7：00 in the morning.(我通常在早上的七点钟起床) / His glasses are right on his nose.(他的眼镜就架在他的鼻子上)/ He is at the cinema at the moment.(此刻他正在电影院)
⑵ after与in表示时间的用法区别：“after+(具体时刻/从句)”表示“在…时刻之后”常用于一般时态；“in+(一段时间)”表示“在(多久)之后”,常用于将来时态。如：He said that he would be here after 6：00.(他说他六点钟之后会来这儿)/ My father is coming back from England in about a month.(我父亲大约一个月以后从英国回来)
⑶ since与for表示时间的用法区别：“since+(具体时刻/that-从句)”表示“自从…起一直到现在”,“for +(一段?间)”表示“总共有…之久”,都常用于完成时态；如：Uncle Li has worked in this factory since 1970.(李叔叔自从1970年起就在这家工厂工作了)/ Uncle Li has worked in this factory for over 30 years. (李叔叔在这家工厂已经工作了30多年)
⑷ by、in与with表示方式的用法区别：都可以表示“工具、手段”,但是by主要表示“乘坐”某个交通工具或“以……方式”,在被动句中可以表示动作的执行者；in表示“使用”某种语言/文字,with表示“使用”某个具体的工具、手段。如：We see with our eyes and walk with our feet.(我们用眼睛看东西,用双脚走路)/ Please write that article(文章) in English.(请你用英语写那篇文章)/ Let’s go to the zoo by taxi.(我们打的去动物园吧。)/ It was written by Lao She.(那是老舍写的)
⑸ about与on的用法区别：都可以表示“有关…”,但是about的意义比较广,而on主要表示“有关…(专题/课程)”。如：Tom is going to give a talk on the history of America.(汤姆要作一个美国历史的报告)/ They are very excited talking about the coming field trip.(他们兴致勃勃地谈论着即将来到的野外旅游)
⑹ through与across、over的用法区别： through指“穿过…(门洞/人群/树林)”； across和over可以指“跨越…(街道/河流)”,可互换,但是表示“翻过…”时只能用over. 如：Just then a rat (鼠)ran across the road.(就在那时一只老鼠跑过路面)/ There is a bridge across/over the river.(河上有座桥)/ They climbed over the mountain and arrived there ahead of time.(他们翻过大山提前到达了那里)/ The visitors went through a big gate into another park.(参观者们穿过一个大门来到另一个公园)
(7)as与like的区别：两个词都表示“像……”,但是as译为“作为……”,表示的是职业、职务、作用等事实,而like译为“像……一样”,表示外表,不是事实。如：Let me speak to you as a father.(我以父亲的身份和你讲话。)(说话者是听者的父亲) / Let me speak to you like a father.(让我像一位父亲一样和你讲话)(说话者不是听者的父亲)
(8)at the end of、by the end of、to the end、in the end的用法区别：at the end of…既可以表示时间也可以表示地点,译为“在…末；在…尽头”,常与过去时连用；by the end of…只能表示时间,译为“在…前；到…为止”,常用于过去完成时； in the end与at last基本等义,表示“终于、最后”,通常用于过去时；to the end译为“到…的终点为止”,前面往往有表示运动或连续性的动词。如：By the end of last term we had learned 16 units of Book III.(到上学期期末我们已经学习了第三册16个单元)/ At the end of the road you can find a big white house with brown windows.(在路的尽头你能找到一幢有棕色窗户的白房子)/ They left for Beijing at the end of last week.(上周末他们动身去了北京)/ In the end he succeeded in the final exams.(他最终在期末考试中考及格了)/ We should go on with the work to the end.(我们应该把工作干到底)/ Follow this road to the end and you will see a post office.(沿这条路走到底就能看见一家邮电局)
(9)for a moment、for the moment、in a moment、at the moment的区别：for a moment“一会儿、片刻”(=for a while),常与持续性动词连用；for the moment“暂时、目前”,常用于现在时；in a moment“一会儿、立即、马上”(=soon; in a few minutes),一般用于将来时；at the moment“此刻,眼下”(=now),用于现在进行时。如：Please wait for a moment.(请稍等)/ Let’s leave things as they are for the moment.(暂时就维持现状吧！) / I’ll come back in a moment.(我过会儿回来)/ I am very busy at the moment.(眼下我很忙)
(10)but的问题：用介词but引出另一个动词时,要注意：如果前面有do,后面就用原形动词,前面没有do时,后面的动词要加to。如：I could do nothing but wait.(我什么也做不了只能等) / They had no choice(选择) but to fight.(他们没有选择只有战斗)
(11)in front of 与in the front of： in front of“在…的前面”, 与in the front of“在…的前部”。如：A car was parking in front of the hall.(大厅跟前停着一辆汽车)/ In the front of the hall stood a big desk.(大厅前部立着一个大讲台)
(12)except与besides的区别：except“除了”,表示排除掉某人物,即不包含；而besides“除了”则表示包含,即“不仅……又……”。如：Everyone went to the Palace Museum except Tom.(除了Tom,大家都去了故宫博物院)(Tom没有去故宫)/ Besides Chinese he also studied many other subjects.(除了汉语之外,他还学其他许多功课)(“汉语”也是他学的功课之一)
八、动词
1、动词的分类：
类 别
意 义
例 句
实义动词
含有实在的意义,表示动作或状态,在句子中能独立作谓语。
She has some bananas. 她吃些香蕉。
They eat a lot of potatoes. 他们常吃土豆。
I’m reading an English book now.
我现在正看一本英文书。
连系动词
本身有一定的词义,但不能独立作谓语,必须和表语一起构成谓语。
His father is a teacher.他父亲是教师。
Twins usually look the same.
双胞胎通常看起来一样。
The teacher became very angry. 老师变得很生气。
助动词
本身没有词义,不能独立作谓语,只能和主要动词一起构成谓语动词,用来表示否定、疑问、时态、语态或其它语法形式,助动词自身有人称、单复数和时态的变化。
He doesn’t speak English. 他不说英语。
We are playing basketball. 我们在打篮球。
Do you have a brother? 你有兄弟吗？
情态动词
本身有一定的意义,不能独立作谓语,只能和主要动词一起构成谓语动词,表示说话人的语气和情态。情态动词没有人称和单复数的变化,有些情态动词有过去式。
You can keep the books for two weeks.
这些书你可以借两个星期。
May I smoke here? 我可以在这儿抽烟吗？
We must go now. 我们现在得走了。
★重要注解：
(1) 关于实义动词：
① 英语的实义动词又可分为及物动词和不及物动词两大类：
后面必须跟宾语意义才完整的叫及物动词；本身意义完整,后面不需跟宾语的叫不及物动词。
② 有些动词通常只作不及物动词。如：go,come,happen,lie,listen,rise,arrive,hall等。
有些动词通常用作及物动词。如：say, raise, lay, find, buy等。
③ 大多数动词可以兼作及物动词和不及物动词。如：study, sing等。
④ 有些动词作及物动词与作不及物动词时的意义有所不同。如：know, wash等。
⑤ 有些动词常和介词 、副词或其它词类一起构成固定词组,形成短语动词。如：listen,reply,wait,look.
(2) 关于连系动词：
① 连系动词用来连接主语和表语,连系动词后面常为形容词。
② 常见的连系动词有：be、become、look、feel、sound、smell、taste、seem、turn、grow、get、 go、fall、sit、stand、lie 等。
③ 有些连系动词来源于实义动词,意思也跟着变化：look(看→看起来)、feel(感觉、摸→感到)、 smell(闻、嗅→闻起来)、taste(尝→尝起来)、turn(翻转、转动→变得)、grow(生长→变得)、get(得到、到达→变得)、go(去→变得),所不同的是,作为实义动词时,后面不能跟形容词。
[注释]
become、get、go、be、grow、turn的用法区别：become表示“变成”,比较正式,通常不用将来时表示动作已经完成。get也表示动作已经完成,但是更加口语化,通常表示温度、时间、岁数等变化。go表示“变得”,常见于某些短语中,后面常有形容词bad、blind、hungry等。be表示“是、成为、当”,多用于将来时、祈使句或不定式中。grow表示“变得”,常指逐渐的变化,表示身高、岁数的增长。turn表示“变得”,指变为与原先不同的情况,通常指颜色等变化。如：I was caught in the rain and I became ill.(我淋雨感冒了)/ He has got rich.(他变富了)/ He will be a scientist in the future.(将来他将成为科学家)/ My little brother has grown much taller in the past year.(在过去的一年里我的弟弟长得高多了)/ The sandwich has gone bad.(那块三明治已经变坏)/ Her face turned red after her mother criticized(批评) her.(妈妈批评了他以后他的脸变红了)
(3) 关于助动词：
①常见的助动词有：用于进行时和被动语态的be (am, is, are ,was, were, been, being ) ;用于完成时的have(has,had,having) ;用于将来时的shall (should) ; will (would)和用于一般时的do(does,did) .
②助动词必须同主语的人称和数一致,也就是说因主语人称、数的不同而采用不同的形式,其中有些助动词也可作情态动词。如：shall, will, should, would.
(4) 关于情态动词：
①常见的情态动词有：can (could) ,may (might), must ,shall (should), will (would), dare (dared) , need等,另外,have to、had better也当作情态动词使用。情态动词后面必须加动词的原形。
②can表示体力、脑力方面的能力或客观的可能性。口语中, 在询问或说明一件事可不可以做时,常用“can”代替“may”。情态动词“can”的过去式是“could”,否定式是“cannot”通常缩写成“can’t”,“could”的否定式是“could not”,通常缩写成“couldn’t”。如：Can I help you?(要帮忙吗？)/ He can swim.(他会游泳)/ That can’t be Mr Li.(那不可能是李先生)
③ may表示允许、请求或可能性,用may提问时,肯定回答一般用Certainly或Yes,you may.;否定回答一般用can’t或mustn’t. 如：May I ask you a question?—Certainly.(可以问你一个问题吗？当然可以)/ You may go now.(现在你可以走了)/ It may be in your pocket.(它可能在你的衣袋里)
④ must表示“必须”、“一定”的意思。表示“必须”时否定形式是mustn’t；表示“一定”时,否定形式是“can’t” 如：We must be very careful when we cross the road.(我们过马路时一定要非常小心)/ It must be Jack.(那准是杰克)/ I haven’t seen Kate today. She can’t be here.(我今天没有看到过凯特,她不可能在这里)
[注意]用must(必须)进行提问时,肯定回答用must,否定回答用needn’t；用must(一定)进行提问时,肯定回答仍用must,但是否定回答用can’t.如：Must we clean the room before we leave? ?Yes,you must.或No,you needn’t.(我们走之前必须要打扫房间吗？是的,必须打扫。/ 不,不需要。) / Must she be in the romm? ?Yes,she must.或No,she can’t.(她一定在房间里吗？是的,一定。/ 不,不可能在。)
⑤ “have to”表示“不得不”、“必须”。We’ll have to leave now for it is very late at night.
have to的疑问形式是：助动词+…+have to,否定形式是：助动词+not+have to或者用needn’t.如：Do you have to stay until 8 o’clock?(你得呆到8点钟吗？)/ You don’t have to do so.(=You needn’t do so.)(你不用这么做)
⑥ shall在问句中,可表示征求对方意见,与第一人称连用；在陈述句的第二、三人称的主语后或表示“命令”、“警告”、“允许”等。如：Shall we go to the zoo this weekend?(我们这个周末去动物园好吗？)/ He shall bring his own book next time.(他下次必须带自己的书来)
⑦ should可表示“劝告”、“建议”、“惊奇”等意思。We should speak to old people politely.(我们应该礼貌地对老人讲话)
⑧ will表示“意愿”、“决心”等意思,一般与第二人称连用。如：Will you please close the door for me?(请你替我把门关上好吗？)/ I will teach you a lesson.(我要教训你一顿)
⑨would表示过去的“意愿”、“决心”等。He would sit near the fire every time he returned home.(每次他回到家中总要坐在火炉边)
would也可以表示现在的情况,表达说话人向对方提出的要求,语气比“will”婉转、客气。在日常会话中,“我想要…”通常用“I would like to”或“I should(I’d) like to”来表示。如：Would you like to have a rest at the moment?(你现在想要休息一下吗？)
would还可以表示过去经常发生的事情。如：Every year parents would tell their children about the boy who would save his people.(每一年父母们总是向孩子们讲述这个将会拯救他的人民的男孩的事)
⑩ need表示“需要”,用于疑问句或否定句。“need”作实义动词时,在肯定、否定、疑问句中都可以用。如：He needn’t do it in such a hurry.(他不需要如此匆忙地做这件事)/ He needs some help.(他需要一些帮助)/ He doesn’t need to bring his football socks then.(那么他就无须带上足球袜了)
⑾ dare是“敢”的意思,用法几乎与“need”完全相同,即在疑问句和否定句中,可以作情态动词,后面用不带“to”的动词不定式。在肯定句中和实义动词一样,后面的动词不定式要带“to”。How dare you say I am a fool?(你竟敢说我是个傻瓜？)/ He didn’t dare to touch the red button.(他不敢触碰那个红色的按钮)
⑿ ‘d better (do)(“最好是”)一般也当作情态动词使用,否定式是：’d better not (do). 如：You’d better sit here and say nothing.(你最好坐在这儿不讲话)/ You’d better not speak because he is sleeping.(你最好不要讲话因为他正在睡觉)
2、动词词形变化一览表：
(1)规则动词变化表：
规 则变 化
原形动词结尾情况
现在时单三人称
现 在 分 词
过去式和过去分词
一般情况
+s
+ing
+ed
s,x,ch,sh,o结尾
+es
+ing
+ed
辅音字母+y结尾
y→i,+es
+ing
y→i,+ed
重读闭音节一元一辅结尾
+s
双写辅音字母,+ing
双写辅音字母,+ed
不发音的e结尾
+s
去掉e,+ing
+d
ie结尾
+s
ie→y,+ing
+d
不规则变化
have→has；be→is
(无)
(见不规则动词变化表)
注意：①在加ing或ed时动词如果以“r”结尾,尾音节又重读的动词,“r”应双写。
②s/es的读音规则：在清辅音后读[s]；在浊辅音后和元音后读[z]；在[ s ]、[ F]、[z]、[tF]、[dV]后读[iz].
③ed的读音规则：在清辅音后读[t]；在浊辅音后和元音后读[d]；在[t]、[d]后读[id].
(2)不规则动词变化表：( 原形 → 过去式 → 过去分词)
be(am,is)
was
been
lose
lost
lost
be(are)
were
been
make
made
made
beat
beat
beaten
may
might
become
became
become
mean
meant
meant
begin
began
begun
meet
met
met
blow
blew
blown
mistake
mistook
mistaken
break
broke
broken
must
must
bring
brought
brought
pay
paid
paid
build
built
built
put
put
put
buy
bought
bought
read
read
Read
can
could
ride
rode
ridden
catch
caught
caught
ring
rang
rung
choose
chose
chosen
rise
rose
risen
come
came
come
run
ran
run
cost
cost
cost
say
said
said
cut
cut
cut
see
saw
seen
dig
dug
dug
sell
sold
sold
do
did
done
send
sent
sent
draw
drew
drawn
set
set
set
drink
drank
drunk
shall
should
drive
drove
driven
shine
shone
shone
eat
ate
eaten
show
showed
shown
fall
fell
fallen
shut
shut
shut
feel
felt
felt
sing
sang
sung
find
found
found
sink
sank/sunk
sunk/sunken
fly
flew
flown
sit
set
set
forget
forgot
forgot/forgotten
sleep
slept
slept
freeze
froze
frozen
smell
smelt
smelt
get
got
got
speak
spoke
spoken
give
gave
given
spend
spent
spent
go
went
gone
spill
spilt
spilt
grow
grew
grown
spoil
spoilt
spoilt
hang
hung/hanged
hung/hanged
stand
stood
stood
have(has)
had
had
sweep
swept
swept
hear
heard
heard
swim
swam
swum
hide
hid
hidden
take
took
taken
hit
hit
hit
teach
taught
taught
hold
held
held
tell
told
told
hurt
hurt
hurt
think
thought
thought
keep
kept
kept
throw
threw
thrown
know
knew
known
understand
understood
understood
lay
laid
laid
wake
woke/waked
woken/waked
learn
learnt/learned
learnt/learned
wear
wore
worn
leave
left
left
will
would
lend
lent
lent
win
won
won
let
let
let
write
wrote
witten
lie
lay
lain
3、be(“是/存在”)动词的各种时态变化：
一 般 现 在 时
一 般 将 来 时
现 在 完 成 时
I am….
You are.…
He/She/It is….
We/You/They are….
(I等各人称) will be….
I am
He/She/It is going to be…
We/You/They are
I have been….
You have been….
She/he/It has been….
We/You/They have been….
一 般 过 去 时
过 去 将 来 时
过 去 完 成 时
I was….
You were.…
He/She/It was….
We/You/They were….
(I等各人称) would be….
I was
He/She/It was going to be…
We/You/They were
I had been….
You had been….
She/he/It had been….
We/You/They had been….
注意：句型变化时,
否定句在am /is /are /will /have /has /was /were /had /would 后面加not,而且not都可以缩写为n’t (am后面not不可以缩写)；
疑问句将am /is /are /will /have /has /was /were /had /would 提前到句首。
4、其它动词(主动语态)的：
现在 时态
一 般 现 在 时
现 在 进 行 时
一 般 将 来 时
现 在 完 成 时
谓语动词构成
动词用原形(单三加s / es)
(问句和否定句借用助词do / does)
am
is +动词-ing
are
will + 动词原形
am
is +going to+动词原形
are
have +过去分词
has
过去 时态
一 般 过 去 时
过 去 进 行 时
过 去 将 来 时
过 去 完 成 时
谓语动词构成
动词用过去式
(问句和否定句借用助词did)
was
+动词-ing
were
would + 动词原形
was
+going to+动词原形
were
had +过去分词
5、八种时态的具体用法：
(1) 一般现在时 表示现阶段经常或习惯发生的动作或存在的状态,或说明主语的特征。
① 一般现在时句子中常有的时间状语：often,usually,sometimes,always,every (day等), once/twice,a (week等), on (Sunday等),never,in the (morning等)。如：They go to the Palace Museum once a year.(他们每年去一次故宫)/ They often discuss business in the evening.(他们经常在晚上商谈生意)
② 表示客观真理、事实、人的技能或现在的状态时句子里一般不用时间状语。如：The earth turns round the sun.(地球绕着太阳转)/ Light travels faster than sound.(光传播比声音快)
③ 表示十分确定会发生(如安排好的事情)或按照时间表进行的事情,用一般现在可以表达将来,句子中可以有将来时间。如：The train for Haikou leaves at 8：00 in the morning.(开往汉口的列车上午8点开车)
④ 在时间状语从句中(以when, after, before, while, until, as soon as等引导)和条件状语从句中(以if,unless引导),用一般现在时代替一般将来时,句子可以有将来时间。如：Please ring me up as soon as you arrive in Germany.(你一到德国就给我打电话) / If it rains tomorrow,we will have to stay at home.(如果明天下雨我们就只好呆在家)
⑤ 一般现在时用于倒装句中可以表示正在发生的动作,动词以come, go为主。如：Here comes the bus. (车来了) / There goes the bell.(铃响了)。
⑥ 一般现在时常用于体育比赛的解说或寓言故事中。Now the midfield player catches the ball and he keeps it.
⑦ 人的心理活动和感官动作一般用一般现在时而不用现在进行时表达,常见动词有：like, love, hate, dislike, want, wish, hope, think(认为),understand, remember, forget, mean, need, hear, feel, see. 如：I think it is going to snow.(我想天要下雪了)/ I really hope you can enjoy your stay here.(我真的希望你愉快地呆在这儿)
(2) 一般过去时 表示过去某时发生的动作或状态,这种动作或状态可能是一次性,也可能经常
发生。
① 表示过去具体时刻发生的一次性动作时,时间状语有：at (eight) (yesterday morning),(ten minutes) ago, when引导的时间状语从句。如：I got up at 6：00 this morning.(我是早上六点钟起床的)/ Little Tom broke the window at half past nine this morning.(小汤姆今天早上九点半把窗子打破了)/ When he went into the room,he saw a stranger talking with his father.(他走进房间时发现一个陌生人正和他父亲谈话)
② 表示过去一段时间内不知何时发生的一次性动作时,时间状语有：yesterday, last (year等), in (1998 等)。如：He came to our city in the year 2000.(他2000年来到我们市)
③ 表示过去一个阶段中经常发生的事情时,时间状语有：last…, in…, from…to…, for(10 years),often,usually, sometimes, always, never等。如：Mr Jackson usually went to evening schools when he was young. / Every day he went to the rich man and borrowed books from him.
④ 讲故事、对过去经历的回忆、双方都明白的过去事件等一般用过去时,而且经常省略时间状语。如：I happened to meet Rose in the street.(我正好在街上遇到露西)
(3) 一般将来时 表示将来某一时刻或经常发生的动作或状态。
①一般将来时的时间状语有：tomorrow,this (afternoon),next (year),one day,now,soon,
someday,sometime, in the future, when引导的从句等。
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