(B)

　　One sunny afternoon，I went to a blood donation station in Jining.That afternoon was also my 18th birthday.I thought of what I was doing as a wonderful__13__to myself and to others.There was a long queue of__14__.I joined it excitedly but became more and more__15__as the queue moved forward.Finally，it was my turn.I sat down__16__a large box and extended my left hand.“Are you ready?” said the doctor with a warm smile.“Yes!” I replied with a confident smile in__17__.The needle was inserted into my vein(靜脈).Seeing the red blood flowing，I felt a bit sick and dizzy.

　　“You should clench(緊握)and__18__your fist，” the doctor said.“Keep doing that until I tell you to stop.” I clenched and released throughout the whole process and__19__calmed down.By the end they had 400ml of my blood.

　　It means a lot to me that I__20__the start of my adult life with a blood donation.I think I was doing something special or meaningful on my 18th birthday.

　　13.A.surprise B.deed C.gift D.deal

　　解析　句意：我考慮著做點(diǎn)什么作為對(duì)自己還有他人的精美禮物。根據(jù)前文“my 18th birthday”可知C項(xiàng)符合語(yǔ)境。

　　答案　C

　　14.A.volunteers B.customers

　　C.patients D.characters

　　解析　volunteers，捐血是自愿的。因此選A，志愿者。

　　答案　A

　　15.A.embarrassed B.upset

　　C.nervous D.homesick

　　解析　隨著自己捐血時(shí)刻的臨近，感到緊張。embarrassed尷尬的;upset煩悶的，苦惱的;homesick想家的;均不符合語(yǔ)境。

　　答案　C

　　16.A.against B.around C.beyond D.over

　　解析　against靠著，倚著。

　　答案　A

　　17.A.turn B.return C.vain D.advance

　　解析　in turn反過(guò)來(lái)，作為回應(yīng);in return回報(bào)，報(bào)答;in vain徒勞;in advance提前;根據(jù)語(yǔ)境可知A項(xiàng)正確。

　　答案　A

　　18.A.grasp B.fold C.force D.release

　　解析　握緊拳頭然后放開，這樣不斷重復(fù)。這是獻(xiàn)血時(shí)必做的動(dòng)作，下句中的“released”為提示。

　　答案　D

　　19.A.regularly B.swiftly C.gradually D.hopefully

　　解析　按醫(yī)生的話去做，心情逐漸地平靜下來(lái)。regularly有規(guī)律地;swiftly迅速地;gradually逐漸地;hopefully有希望地;C項(xiàng)符合句意。

　　答案　C

　　20.A.marked B.initiated

　　C.cultivated D.recalled

　　解析　過(guò)捐血標(biāo)志著18歲成人的開始。mark表明，標(biāo)志著;initiate開始，和后面的start重復(fù);cultivate培養(yǎng)，養(yǎng)成;recall回想起。故選A。

　　答案　A