3. When may a woman start her nevirapine-based treatment if she gets the single dose of nevirapine at delivery
A She may start nevirapine-based treatment soon after her delivery.
B She may start nevirapine-based treatment within six months after her delivery.
C She has to wait at least six months after that nevirapine exposure.
D She may wait several years so as to achieve the best effect.
4. We may learn from this passage that HIV resistance against nevirapine
A lasts only for about a half year and fades quickly.
B will last forever in a woman who took nevirapine.
C is a terrible drug that must be banned at once.
D is a problem too difficult to be solved.
5. Generally speaking, the authors attitude towards the use of nevirapine is
A negative
B positive
C uncertain
D doubtful
答案與題解:
1.D 第一段第一句及第二段第二句均提到nevirapine可以防止母親在分娩時將HIV病毒傳染給新生兒的問題,故D項是正確答案。
2.C 第三段第一句說,即使單獨使用nevirapine一次,HIV病毒也會很快產生對nevirapine的抗藥性,原因就是沒有其他藥物可以殺死nevirapine還沒有殺死的病毒顆粒,這正是C項的內容。
3.C 第四段第二句說到,等待的時間最短可到六個月,第五段第一句又說,最少等待六個月的婦女,她們以nevirapine為主的藥物綜合治療的療效要比等待不足六個月的婦女高70%,可見C項“最少要等待六個月”是正確答案。
4.A 第一段第三句說到抗藥性存在的時間并不長,第四段第二句又說等待的時間可以短至六個月,另外,文章的標題也說抗藥性很快消失,可見A項是正確選項,其他各項文章均未提及。
5.B 第一段是文章的提要,最能說明作者觀點,其中最后一句就明確提到,已經服用 nevirapine的已感染上HIV的母親們不應該放棄服用這種能用得起的藥物。而且通篇文章都在探討如何更有效地利用此藥物,因此作者對使用此藥的態度應該是“積極的、肯定的”。