小学英语必备的基础知识

英语是小学阶段的重要科目，虽然接触的英语内容都是十分基础的知识，但也要将每个知识掌握好。下面是本站小编为大家整理的小学英语基础知识归纳，希望对大家有用!

虚拟现在(Subjunctive Present):

虚拟现在的句子，在任何时候都要用动词的原形(root form)，就算是第三人称(he,she, it)也是如此。如：

1.1 现在时态(Simple Present): (右边为虚拟语气)

I work ---- I work

you work ---- you work

he works ---- he work (注意到了吗，是 work，不是 works)

she works ---- she work (不是 she works 喔)

it works ---- it work (同样不是 it works 喔)

we work ---- we work

they work ---- they work

1.2 现在进行时态(Present Continuous):(右边为虚拟语气)

I am working ---- I be working (注意用的是 be，怪怪的'!)

you are working ---- you be working

he is working ---- he be working

she is working ---- she be working

it is working ---- it be working

we are working ---- we be working

they are woring ---- they be working

1.3 现在完成时态(Present Perfect):(右边为虚拟语气)

I have worked ---- I have worked

you have worked ---- you have worked

he has worked ----- he have worked (用的还是have喔)

she has worked ---- she have worked

it has worked ---- it have worked

we have worked ---- we have worked

they have worked ---- they have worked

1.4 现在完成进行时态(Present Perfect Continuous):(右边为虚拟语气) I have been working ---- I have been working

you have been working ---- you have been working

he has been working ---- he have been working (是 he have, 不是 he has ) she has been working ---- she have been working

it has been working --- it have been working

we have been working ---- we have been working

they have been working ---- they have been working

1.表示地点位置的介词

(1)at ,in, on, to

at 表示在小地方; 表示“在……附近，旁边”

in 表示 在大地方; 表示“在…范围之内”。

on 表示毗邻，接壤，“在……上面”。

to 表示在……范围外，不强调是否接壤;或“到……”

(2)above, over, on 在……上

above 指在……上方; over指垂直的上方,与under相对,但over与物体有一定的空间，不直接接触; on表示某物体上面并与之接触。

The bird is flying above my head.

He put his watch on the desk.

(3)below, under 在……下面; under表示在…正下方;below表示在……下，不一定在正下方

There is a cat under the table. Please write your name below the line(横线).

(4)in front of, in the front of在……前面

in front of…意思是“在……前面”，指甲物在乙物之前，两者互不包括; There are some flowers in front of the house.(房子前面有些花卉。)

in the front of 意思是“在…..的前部”，即甲物在乙物的内部. There is a blackboard in the front of our classroom.

(5)beside，behind

beside 表示在……旁边

behind 表示在……后面

介词at，in与on在时间方面的用法

at表示时间的一点;in表示一个时期;on表示特殊日子。如：

He goes to school at seven o’clock in the morning. 他早晨七点上学。 Can you finish the work in two days. 你能在两天内完成这个工作吗? Linda was born on the second of May. 琳达五月二日出生。

1、at后常接几点几分，天明，中午，日出，日落，开始等。如：

at five o’clock (五点)，at down (黎明)，at daybreak (天亮)，at sunrise (日出)，at noon (中午)，at sunset (日落)，at midnight (半夜)，at the beginning of the month (月初)， at that time (那时)，at that moment (那会儿)，at this time of day (在一天的这个时候)。

2、 in后常接年，月，日期，上午，下午，晚上，白天，季节，世纪等。如： in 2006(2006年)，in May，2004 (2004年五月)，in the morning (早晨/上午)，in the afternoon (下午)，in the evening (晚上)，in the night (夜晚)，in the daytime (白天)，in the 21st century (21世纪)，in three days (weeks/month)三天(周/个月)，in a week (一周)，in spring (春季)。

3、on后常接某日，星期几，某日或某周日的朝夕，节日等。如：