On reaching the city he called up his parents.

一到城里他就给父母打了一个电话。

3.In

1)表示"时段"、"时期"，在多数情况下可以和during互换，前者强调对比，后者强调持续。in(during)1988(December，

the 20th century)在一九八八年(十二月、二十世纪)

七、动词：动词的四种时态：

(1)一般现在时：

一般现在时的构成

1.be动词：主语+be(am,is,are)+其它。如：I am a boy.我是一个男孩。

2.行为动词：主语+行为动词(+其它)。如：We study English.我们学习英语。

当主语为第三人称单数(he,she,it)时，要在动词后加"-s"或"-es"。如：Mary likes Chinese.玛丽喜欢汉语。

动词+s的变化规则

1.一般情况下，直接加-s，如：cook-cooks,milk-milks

2.以s.x.sh.ch.o结尾，加-es，如：guess-guesses,wash-washes,watch-watches,go-goes

3.以“辅音字母+y”结尾，变y为i,再加-es，如：study-studies

(2)一般过去时:

动词过去式详解动词的过去式的构成规则有：

A、规则动词

①一般直接在动词的后面加ed：如worked,learned,cleaned,visited

②以e结尾的动词直接加d：如lived,danced,used

③以辅音字母加y结尾的动词要改y为i再加ed(此类动词较少)如study–studied carry–carried worry–worried(注意play、stay不是辅音字母加y,所以不属于此类)

④双写最后一个字母(此类动词较少)如stopped

B、不规则动词(此类词并无规则，须熟记)小学阶段要记住以下动词的原形和过去式：sing–sang,eat–ate,see–saw,have–had,do–did,go–went,take–took,buy–bought,get–got,read–read,fly–flew,am/is–was,are–were,say–said,leave–left,swim–swam,tell–told,draw–drew,come–came,lose–lost,find–found,drink–drank,hurt–hurt,feel–felt

(3)一般将来时：

基本结构：①be going to+do;

②will+do.be going to=will

I am going to go swimming tomorrow(明天).=I will go swimming tomorrow.

(4)现在进行时:am,is,are+动词现在分词

动词现在分词详解动词的ing形式的构成规则：

①一般的直接在后面加上ing,如doing,going,working,singing,eating

②以e结尾的动词，要先去e再加ing，如having,writing

③双写最后一个字母的(此类动词极少)有：running,swimming,sitting,getting

第三部分：句法

1.陈述句

(1)肯定句：是指用肯定的语气来陈述的句子，如：I'm a student.She is a doctor.He works in a hospital.

There are four fans in our classroom.He will eat lunch at 12:00.I watched TV yesterday evening.

(2)、否定句：含有否定词或表示否定意义词的句子，如：I'm not a student.She is not(isn't)a doctor.

He does not(doesn't)work in a hospital.There are not(aren't)four fans in our classroom.

He will not(won't)eat lunch at 12:00.I did not(didn't)watch TV yesterday evening.

2.疑问句