轉眼2017全國英語等級考試開始新的征程了,為了幫助各位考生更好地備考,以下是yjbys網小編整理的關於公共英語考試二級語法解析,供大家備考。
篇一:
一般將來時
1)shall用於第一人稱,常被will 所代替。
will 在陳述句中用於各人稱,在爭求意見時常用於第二人稱。
Which paragraph shall I read first.
Will you be at home at seven this evening?
2)be going to +不定式,表示將來。
a. 主語的意圖,即將做某事。
What are you going to do tomorrow?
b. 計劃,安排要發生的事。
The play is going to be produced next month.
c. 有跡象要發生的事
Look at the dark clouds, there is going to be a storm.
3) be +不定式表將來,按計劃或正式安排將發生的事。
We are to discuss the report next Saturday.
4)be about to +不定式,意為馬上做某事。
He is about to leave for Beijing.
注意:be about to 不能與tomorrow, next week 等表示明確將來時的時間狀語連用。
be to和be going to
be to 表示客觀安排或受人指示而做某事。
be going to 表示主觀的打算或計劃。
I am to play football tomorrow afternoon.(客觀安排)
I'm going to play football tomorrow afternoon. (主觀安排)
篇二:
將來完成時
1) 構成:will/be going to do sth.
2) 概念
a. 狀態完成:表示某事繼續到將來某一時為止一直有的'狀態。
b. 動作完成:表示將來某一時或另一個將來的動作之前,已經完成的動作或一獲得的經驗。
They will have been married for 20 years by then.
You will have reached Shanghai by this time tomorrow.
現在進行時
現在進行時的基本用法:
a. 表示現在( 指說話人說話時) 正在發生的事情。
We are waiting for you.
b. 習慣進行:表示長期的或重複性的動作,說話時動作未必正在進行。
Mr. Green is writing another novel.
(說話時並未在寫,只處於寫作的狀態。)
She is learning piano under Mr. Smith.
c. 表示漸變的動詞有:get, grow, become, turn, run, go, begin等。
The leaves are turning red.
It's getting warmer and warmer.
d. 與always, constantly, forever 等詞連用,表示反覆發生的動作或持續存在的狀態,往往帶有說話人的主觀色彩。
You are always changing your mind.
典型例題
My dictionary ___, I have looked for it everywhere but still___ it.
A. has lost, don't findB. is missing, don't find C. has lost, haven't found D. is missing, haven't found.
答案D. 前句是一個仍在持續的狀態,應用進行時,由於沒有找到,其影響仍然存在,應用完成時,瞬間動詞用於否定式時可用於完成時。