3.irresponsible：a. 不負(fù)責(zé)任的，無責(zé)任感的
派生詞：responsible a. 負(fù)責(zé)任的
It would be irresponsible of me to encourage you to invest in the poorly managed company.
如果我鼓勵你投資于該管理不善的公司，那是不負(fù)責(zé)任。
He is irresponsible for what he says. 他對自己所說的話不負(fù)責(zé)任。
注：類似表示反意的前綴，在字母r前 ： ir- irregular、irrelevant
在字母l前： il- illegal
在字母m .p.b前： im- impossible ， immovable ， imbalance
在字母前： in- independent ， inactive ， incapable 等
re-前綴表示重復(fù)
cell細(xì)胞，蜂窩，cell-phone 手機(jī)
4.simulate： vt.假裝，冒充，模仿，模擬
In cheap furniture， plastic is often used to simulate wood.在廉價家具中，常用塑料冒充木料。
5.eventual：a. 最后的，結(jié)局的
同義詞：last， finally， in the end
The eventual decision came after weeks of consideration. 經(jīng)過數(shù)周的考慮后最終作出了決定。
There are still many problems to be resolved， but we remain optimistic about an eventual agreement. 盡管還有很多問題要解決，但我們對達(dá)成最終協(xié)議仍抱樂觀態(tài)度。
6.replace ：vt. 代替，取代；=to take the place of （強(qiáng)調(diào)完全取代）
同義詞：substitute v. 代替（強(qiáng)調(diào)臨時性的代替。例：He substitutes as our teacher of English. ）
辨析：substitute … for ； replace … with
We‘ve substituted a computer for that old machine. 我們用電腦代替了那臺舊機(jī)器。
We‘ve replaced the old machine with a computer. 我們用電腦取代了那臺舊機(jī)器。
7.partly： ad. 部分地，在一定程度上
What you say is partly true. 你說的話一部分是真實的。
His attractiveness is partly due to his self-confidence. 他的魅力部分是由于他的自信。
8.undergo：vt. 經(jīng)歷，經(jīng)受；忍受
The ship successfully underwent sea trial in coastal waters. 那條船在近海水域試航成功。
He had undergone great hardship in bringing up his five children.
他受了不少苦才把五個孩子撫養(yǎng)成人。
9.litter v./n. 亂丟，亂丟的垃圾
例： litter is garbage.垃圾：rubbish，refuse，waste，disposal
以-sis結(jié)尾的名詞變復(fù)數(shù)，變sis為-ses .
詞組 ：phrases
1.to sacrifice to： 向…獻(xiàn)祭；為…而犧牲；
It was the practice of these people to sacrifice to their gods when rain had not fallen.
這些人有祭神求雨的習(xí)俗。
They are prepared to sacrifice everything to achieve victory. 他們準(zhǔn)備犧牲一切去爭取勝利。
2.to do research into： 進(jìn)行…的研究
They are doing some fascinating research into the language of bees.
他們正在對蜜蜂的語言進(jìn)行一些有趣的研究。
Research into atomic energy should be conducted with a view to its peaceful use.
研究原子能應(yīng)該服務(wù)于和平的目的。
3.be central to： 對……極為重要的，是……的重點(diǎn)
Reducing inflation is central to the government‘s economic policy.
縮減通貨膨脹是政府經(jīng)濟(jì)政策的重點(diǎn)。
Community involvement is central to our plan. 群眾參與對于我們計劃的實施非常重要。
派生詞：responsible a. 負(fù)責(zé)任的
It would be irresponsible of me to encourage you to invest in the poorly managed company.
如果我鼓勵你投資于該管理不善的公司，那是不負(fù)責(zé)任。
He is irresponsible for what he says. 他對自己所說的話不負(fù)責(zé)任。
注：類似表示反意的前綴，在字母r前 ： ir- irregular、irrelevant
在字母l前： il- illegal
在字母m .p.b前： im- impossible ， immovable ， imbalance
在字母前： in- independent ， inactive ， incapable 等
re-前綴表示重復(fù)
cell細(xì)胞，蜂窩，cell-phone 手機(jī)
4.simulate： vt.假裝，冒充，模仿，模擬
In cheap furniture， plastic is often used to simulate wood.在廉價家具中，常用塑料冒充木料。
5.eventual：a. 最后的，結(jié)局的
同義詞：last， finally， in the end
The eventual decision came after weeks of consideration. 經(jīng)過數(shù)周的考慮后最終作出了決定。
There are still many problems to be resolved， but we remain optimistic about an eventual agreement. 盡管還有很多問題要解決，但我們對達(dá)成最終協(xié)議仍抱樂觀態(tài)度。
6.replace ：vt. 代替，取代；=to take the place of （強(qiáng)調(diào)完全取代）
同義詞：substitute v. 代替（強(qiáng)調(diào)臨時性的代替。例：He substitutes as our teacher of English. ）
辨析：substitute … for ； replace … with
We‘ve substituted a computer for that old machine. 我們用電腦代替了那臺舊機(jī)器。
We‘ve replaced the old machine with a computer. 我們用電腦取代了那臺舊機(jī)器。
7.partly： ad. 部分地，在一定程度上
What you say is partly true. 你說的話一部分是真實的。
His attractiveness is partly due to his self-confidence. 他的魅力部分是由于他的自信。
8.undergo：vt. 經(jīng)歷，經(jīng)受；忍受
The ship successfully underwent sea trial in coastal waters. 那條船在近海水域試航成功。
He had undergone great hardship in bringing up his five children.
他受了不少苦才把五個孩子撫養(yǎng)成人。
9.litter v./n. 亂丟，亂丟的垃圾
例： litter is garbage.垃圾：rubbish，refuse，waste，disposal
以-sis結(jié)尾的名詞變復(fù)數(shù)，變sis為-ses .
詞組 ：phrases
1.to sacrifice to： 向…獻(xiàn)祭；為…而犧牲；
It was the practice of these people to sacrifice to their gods when rain had not fallen.
這些人有祭神求雨的習(xí)俗。
They are prepared to sacrifice everything to achieve victory. 他們準(zhǔn)備犧牲一切去爭取勝利。
2.to do research into： 進(jìn)行…的研究
They are doing some fascinating research into the language of bees.
他們正在對蜜蜂的語言進(jìn)行一些有趣的研究。
Research into atomic energy should be conducted with a view to its peaceful use.
研究原子能應(yīng)該服務(wù)于和平的目的。
3.be central to： 對……極為重要的，是……的重點(diǎn)
Reducing inflation is central to the government‘s economic policy.
縮減通貨膨脹是政府經(jīng)濟(jì)政策的重點(diǎn)。
Community involvement is central to our plan. 群眾參與對于我們計劃的實施非常重要。