[答案] A. blamed.

　　[注释] blame sb./sth. for ... 因.......埋怨、责怪 .......：He blames you for neglect of duty. (他责怪你玩忽职守。) condemn 谴责、判刑。Accuse sb. of 控告某人犯有.......。charge sb. with 控告某人犯有......。

　　[答案] A. bands.

　　[注释] band (颜色与其余部分不同的) 条纹。Mark 痕迹, 斑点; 记号, 标记。本题是讲岩石上色彩不同的“条纹”, 故用bands. rail (轨道) ,shape (形状) ,均不合题意。

　　[答案] D. available.

　　[注释] available (=capable of being used; that may be obtained) 可利用的; 可以找到的：1) These tickets are available for one month. (这些票的有效期一个月。) 2) Is there a doctor available? (有否可以找到大夫?) 3) A limited number of seats are still available.(仍然还有少量座位。)

　　[答案] A. stuck out.

　　[注释]stick out 坚持。详见III.400.注释.

　　[答案] C. attain.

　　[注释] attain (=succeed in doing or getting) 达到 (目的等) ,取得 (成就等) :I hope you will attain your object, accomplish (顺利) 完成。assume 假定, 假设, 承担。assemble 集合; 装配。