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(1) |
該句含義為“所有的生命體都有年老的征兆,年老最終會(huì)導(dǎo)致死亡”。lively“活潑的”,lovely“可愛(ài)的”,living“活著的”。 |
(2) |
result in“導(dǎo)致”,result from“由于……而發(fā)生”,end in“以……結(jié)尾”,conclude“結(jié)束”。 |
(3) |
句意是“年老不是一種疾病,但是人一旦過(guò)了壯年期,身體的細(xì)胞及細(xì)胞形成的器官就不再像少年或青春期那樣,能很好地工作了”。 |
(4) |
此處本應(yīng)用動(dòng)詞function,但為了避免重復(fù),用do替代,既然是in childhood and adolescence,所以用do的過(guò)去式did。 |
(5) |
protection“保護(hù)”,prevention“預(yù)防”,vitamin“維他命”,既然前面用provide(提供)動(dòng)詞,所以只有protection與之搭配。 |
(6) |
be prone to“有……傾向的,易于……的”。 |
(7) |
該句意為“很多原因可致使衰老”。contribute to“有助于”,compare to“把……比作……”,be drawn to“被……吸引”。 |
(8) |
句意“身體的一些細(xì)胞有相當(dāng)長(zhǎng)的生命力,但是,當(dāng)它們死亡時(shí)不會(huì)被新的所替代”。 |
(9) |
repeat“重述”,reply“回答”,replace“替代”,rearrange“重新安排”。 |
(10) |
the amount of“……的數(shù)量”,any amount of“大量”,amount用來(lái)修飾不可數(shù)名詞,而brain cells為復(fù)數(shù)形式,因此只能選擇the number of。a number of“大量”,修飾可數(shù)名詞的復(fù)數(shù)形式。 |
(11) |
上一句談到其身體細(xì)胞死亡后,新的細(xì)胞再生,此句承接上句,比較年老人與年輕人新細(xì)胞功能的強(qiáng)弱。 |
(12) |
be capable of“能夠干某事”,固定結(jié)構(gòu),be able to后用動(dòng)詞原形。 |
(13) |
themselves是the cells的同位語(yǔ)。by oneself作“獨(dú)自地,獨(dú)立地”解,但并不強(qiáng)調(diào)會(huì)給自己帶來(lái)好處。of oneself作“自動(dòng)的,自己”或“自然地”解。 |
(14) |
主語(yǔ)some of the protein chemicals為復(fù)數(shù),而且,從后半句become中得到提示,要用一般現(xiàn)在時(shí),描述一種客觀規(guī)律。 |
(15) |
with在此處是“隨……”的意思。句意為“隨著年紀(jì)的變老,蛋白質(zhì)化學(xué)成分也隨之變化……”。 |
(16) |
in在此處為介詞,in height譯為“在身高方面”。介詞后面接名詞,構(gòu)成介賓結(jié)構(gòu),所以此處A項(xiàng)為正確答案。 |
(17) |
such as為復(fù)合連接詞,引出同位語(yǔ)DNA and RNA,對(duì)前面的Some complex cell chemicals起列舉作用,可翻譯為“例如”。as though“似乎”,as that“像那一樣”,as such“確切而言,完全地”。 |
(18) |
pass on“傳遞”,pass by“從……旁經(jīng)過(guò)”,pass into“進(jìn)入”,pass off“逐漸消失”。 |
(19) |
句意為“年齡可能會(huì)影響這個(gè)過(guò)程,改變信息傳遞分子。因此,它們就不能像原先那樣很好地傳遞信息了”。 |
(20) |
本句中前一個(gè)分句與后一個(gè)分句構(gòu)成因果關(guān)系,故選so that。 |
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