每一題都要詳細(xì)解釋清楚哦~
1
By the time he realizes he ____into a trap ,it 'll be too late for him to do anything about it.
A walks B walked C has walked D had walked
我的答案B 正確答案：C
疑惑：選C不就意味著,他一直意識(shí)到自己····知道現(xiàn)在 ,這明天不就是錯(cuò)的嘛?
首先改你一錯(cuò),about后有it.
答:你怎么會(huì)選B呢?這講的是未發(fā)生的事情!選項(xiàng)應(yīng)在A與C之間考慮才對(duì).
譯：C等到他意識(shí)到他已經(jīng)走入一個(gè)陷井時(shí),一切都晚了,他什么都做不了（一點(diǎn)辦法都沒(méi)有）.
析：by the time=by the time when-定語(yǔ)從句,意為“到了（那）時(shí),”,也可以認(rèn)為相當(dāng)于when,譯作：當(dāng).時(shí),主將從現(xiàn),所以用realizes,后面的賓語(yǔ)從句he has walked in the a trap,強(qiáng)調(diào)的是結(jié)果.他已經(jīng)走進(jìn)了一個(gè)陷井,但不能馬上意識(shí)到,等到意識(shí)到時(shí),一切都晚了.
2
It is said that the student ______seriously ill for two months last semester
A was B is C had been D has been
我的答案：D 正確答案：A
答：又一陷井!
譯：據(jù)說(shuō)那學(xué)生上學(xué)期病得很重,有兩個(gè)月之久.
析：不要以為只有現(xiàn)在完成時(shí)才可以與for+一短時(shí)間連用,一般過(guò)去時(shí)也可以,表示“過(guò)去一短時(shí)間里連續(xù)發(fā)生或存在的情況”.近幾年模擬常出這類題.這一題選C的也很多.
3
There ______a trend that 3D films will become more popular ever since the film Auatar hit the market
A has arisen B arose C is arising D will arise
答：A.
譯：自從電影《阿凡達(dá)》票房大賣以來(lái),已經(jīng)出現(xiàn)了一種趨勢(shì),那就是3D電影將更加流行.
析：there has arisen a trend （+that 同位語(yǔ)從句） even since sth.happened.
本題考查時(shí)態(tài),如能正確斷句,不為中間的同位語(yǔ)從句所干擾,此題不難.
4
You didn't lock the back door .
------you are wrong.I______
A have locked it B lock it myself C did lock it D do lock it
為什么不能選A
答：C
譯：你沒(méi)鎖后門.
你錯(cuò)了.我的確鎖了的.
析：注意責(zé)怪者說(shuō)話的時(shí)態(tài),是過(guò)去時(shí).強(qiáng)調(diào)過(guò)去他沒(méi)有鎖后門.他沒(méi)有說(shuō)：You haven't locked the back door.如果是這樣,則選A.事實(shí)可以證明,現(xiàn)在的后門還是鎖著的!
而現(xiàn)在（說(shuō)話時(shí)）后門是開著的.（具體原因不清楚）,回答者不能說(shuō)：I have locked it.因?yàn)楝F(xiàn)在完成時(shí),強(qiáng)調(diào)動(dòng)作對(duì)現(xiàn)在的影響和結(jié)果（是鎖著的）.回答者只是強(qiáng)調(diào)：我當(dāng)時(shí)的確是鎖了的.言下之意,現(xiàn)在后門開著,另有原因,責(zé)任不在我（我當(dāng)時(shí)還推過(guò)一下門的,我記得很清楚!）
5
--------I ____ downtown to the shopping centre soon .Coluld I get you something
-----No ,thanks ,I will do e-shopping
A was just going B am just about to go C have just gone D am just going
為什么不能選B
答：D
我打算一會(huì)上街購(gòu)物,要我給你帶什么嗎?
不了,我網(wǎng)購(gòu).
析：表示位移的動(dòng)詞（來(lái)去動(dòng)詞）可以用現(xiàn)在進(jìn)行時(shí)表示“最近的將來(lái)的計(jì)劃、打算”.可以和表示最近的將來(lái)的時(shí)間狀語(yǔ)連用,如：I am leaving for Shanghai tomorrow.
be (just) about to do sth.一般不與soon,in two miniutes這樣的時(shí)間狀語(yǔ)連用,一般用于句型：sb.was just about to do sth.when sth.unexpected (suddenly) happened .意為：正準(zhǔn)備做某事,就在這時(shí),一件意想不到的事情突然發(fā)生了.
6
What _____during a person's early years may affect the rest of his life .
A happened B has happeded C happens D happening
答：C
譯：一個(gè)人早年發(fā)生的事情對(duì)他的后半生可能有影響.
析：本句講的是一般的情況,用一般現(xiàn)在時(shí).
評(píng)：本題有兩處不當(dāng),1.what happens to him這個(gè)to him不省略更好,強(qiáng)調(diào)發(fā)生在他身上的事情,與他有關(guān)的事情,這個(gè)世界上每天發(fā)生很多事情,很多事情我們根本不知道卻每天都happens,這些事情,對(duì)個(gè)人是沒(méi)有影響的.
2.B項(xiàng)意為：已經(jīng)發(fā)生了的事情,與C一樣,也是現(xiàn)在時(shí)態(tài),只不過(guò)強(qiáng)調(diào)已經(jīng)發(fā)生過(guò)了的事情會(huì)影響余生.意思也通.這個(gè)選項(xiàng)最好改一下.
7.The survey conducted indicates that nearly 80% of the Chinses feel that pressures on them are much heavier than before while their incomes ___
A would increase B have increased C will increase D increased
答：B.
譯：調(diào)查表明,近八成的中國(guó)人覺(jué)得壓力比以前更大,盡管收入（已經(jīng)）提高了.
析：while=though,近年?？?
PS：這幾個(gè)題出得不錯(cuò)!問(wèn)題也不錯(cuò).如何準(zhǔn)確區(qū)分過(guò)去式，和過(guò)去完成時(shí)？我查了很多，都是什么強(qiáng)調(diào)對(duì)現(xiàn)在的影響，可是有時(shí)候?qū)ΜF(xiàn)在有影響的時(shí)候就是用的過(guò)去式。答：一般過(guò)去時(shí)，用來(lái)表達(dá)過(guò)去某個(gè)時(shí)間所發(fā)生過(guò)的事情過(guò)去完成時(shí)，以過(guò)去某個(gè)時(shí)間為參照點(diǎn)，表示在那個(gè)時(shí)間以前所發(fā)生的動(dòng)作，強(qiáng)調(diào)對(duì)當(dāng)時(shí)的影響或結(jié)果，或表示一個(gè)一直延續(xù)那當(dāng)時(shí)為止的動(dòng)作或狀態(tài)?？梢詫⑺c現(xiàn)在完成時(shí)作對(duì)比。后者以“現(xiàn)在”時(shí)間為參照。一般過(guò)去時(shí)，就事論事，講的就是過(guò)去發(fā)生的事實(shí)。說(shuō)話者并不關(guān)心，不在意它對(duì)現(xiàn)在的影響。