concentrate v.全神貫注，精神集中，專心致志;集中，集合;濃縮
We should concentrate all our efforts on improving education.我們應(yīng)該集中精力努力改進教育工作。
Troops are concentrating south of the river.軍隊正向河的南邊集結(jié)。
n.濃縮液
【用法】concentrate(sth.)on sth./doing sth.
【全真考題】Anne couldn't concentrate what she was doing while her family were watching TV.(93.1)
A.to B.on C.for D.in
【答案】B
continual adj.繼續(xù)不斷的;一再重復(fù)的
continual rain 不停的雨
【辨析】continual與continuous
continual一般指多次重復(fù)的動作：Please stop your continual questions.
continuous表示動作或物體繼續(xù)不停地或不間斷地進行下去：a continuous flow of traffic
【全真考題】Our journey was slow because the train stopped at different villages.(99.1)
A.unceasingly B.gradually
C.continuously D.continually
【答案】D
contrary adj.(在性質(zhì)、傾向或方向等方面)相反的;好與人作對的
contrary beliefs 截然相反的信仰
He is an awkward，contrary child.他是個又麻煩又不聽話的孩子。
n.反面
【用法】contrary to 違反：be contrary to the law;on the contrary 與此相反：It doesn't seem ugly to me;on the contrary，I think it's rather beautiful.
【全真考題】What you have done is the doctor's orders.(90.1)
A.attached to B.responsible to
C.resistant to D.contrary to
【答案】D
1.The issue is how to of radioactive waste.
A.deal B.dispose C.disposal D.do
[答案與譯文]B.問題是怎樣處理放射性廢料。
[辨析及搭配]A.deal(with)處理;應(yīng)付;做生意。例句：I have dealt with this company for more than a decade.我已經(jīng)與這家公司做了十多年的生意。B. dispose(of)處理;處置;除掉;去掉。例句：Man proposes，God disposes.謀事在人，成事在天。Dispose of these old newspapers!把這些舊報紙?zhí)幚淼簟.disposaln.處理;處置。D.do處理;整頓;解決(問題)。
2.The trend of brain drain does the developing countries degrees of harm.
A.diver B.diversify C.diverse D.diversity
[答案與譯文]C.人才外流的趨勢不同程度傷害著發(fā)展中國家。
[辨析及搭配]A.diver n.潛水員。B.diversify v.使多樣化。C.diverse adj.不同的。D.diversity n.多樣性。此處只能用形容詞diverse修飾名詞。
3.Whether he could obtain his diploma or not greatly him.
A.disturbed B.distinguished C.distresses D.disputes
[答案與譯文]A.是否能取得文憑極大地擾亂了他的心緒。
[辨析及搭配]A.disturb 擾亂;打擾。B.distinguish(between;from)區(qū)分;辨別。C.distress使悲痛;使憂傷。D.dispute 爭論;辯論;爭執(zhí)。
4.All had to stay in the open space，esp.at night， for the of the warning of an earthquake.
A.donation B.domination C.destination D.duration
[答案與譯文]D.在整個地震警報期間，大家只好(特別是在夜間)待在空曠的地方。
[辨析及搭配]A.donation 捐贈品;捐款。B. domination統(tǒng)治;控制;支配。C.destination 目的地。D.duration期間;持續(xù)時間。
5.The free market is with purchasers and merchants.
A.deliberate B.dense C.dependent D.desirable
[答案與譯文]B.自由市場上云集買賣雙方而一片繁忙。
[辨析及搭配]A.deliberate蓄意的;審慎的。B. dense(with)密集的;濃厚的;繁忙的。C.dependent依靠的;依賴的;以……而定。D.desirable值得要的;合心意的;悅?cè)诵囊獾摹?BR> 6.Mr.Smith is used to reading his favorite academic over coffee.
A.digital B.digest C.digestion D.indigestion
[答案與譯文]B.史密斯先生習(xí)慣于邊喝咖啡邊讀他最喜歡的學(xué)術(shù)文摘。
[辨析及搭配]首先排除A.digital adj.數(shù)字的;數(shù)碼的。后面三個是同根詞：B.digest v.消化，領(lǐng)悟。n.文摘，摘要。C.digestion n.消化，領(lǐng)悟。D.indigestionn.消化不良。
7.Failure is the mother of success，so that hers hasn't her，but encouraged her to redouble her exertions instead.
A.discharged B.discounted
C.discarded D.discouraged
[答案與譯文]D.失敗乃成功之母。所以她的失敗沒使她灰心喪氣，反而使她加倍努力。
[辨析及搭配]A.discharge v.允許……離開;排(放)出。B.discount vt.打斷;漠視;認為……不值得考慮。C.discard vt.&vi.拋棄;放棄。D.discouragev.使泄氣;沮喪;阻攔。