308. [答案] C. stick out.

[注释] stick out(=keep on doing sth。until it is done，no matter how long，hard，or unpleasant) 坚持下去: Mathematics is hard，but if you stick it out you will understanding it(=Mathematics is hard，but if you keep on working hard at it you will learn it. ) 此外，stick on 还可表示 (stand out) 突出: The skyscraper sticks out against the bkue sky. (这幢摩 天大楼映着蓝图显得格外突出. )[注意] stick out与keep to 均有“坚持”的含义。stick out 特指“坚持下功夫 干一件事，不完成决不收兵”;而keep to 则强调“坚持、遵守、坚守”诺言、规则、原则、精神、岗位。可见，keep to 的英文释义为 ability by;adhere to，stick closely to。例如: keep to one's promise(遵守诺言);keep to the rules of a game(遵守比赛规则);keep to a principle(坚持原则);keep one's pos(坚守岗位)。因此，我们可以说keep to相当于 stick to，而区别于 stick out.

307. [答案] D. in stock.

[注释] in stock(=having sth. ready to sell or use;in present supply) 有现货供应: The shop has suger in stock. (这个商店有白糖供应. ) in demand(=needed;wanted;) 有需求: The book about dogs was much in demand in the library. (=Many people wanted to read the book about dogs that in the library. ) in need(=in poverty，in trouble)在贫困中，在困难中: A friend in need is a friend indeed。(A friend who helps when one is in trouble is areal friend. ) in store(=saved up in case of need; ready for use for some purpose) 储备待用:于If the electricity goes off，we have candles in the closet. (=We have candles put away if we need them for light. )(如果电灯灭了，我们壁橱里还备有蜡烛. )

　[注意] in stock 强调商店备有现货以供出售，而 in store 则指储备物品以供急 需使用。此外 in store 还可以表示“等待着，必将发生”。例如: I have a surprise in store for you. (我有一个你料想不到的消息要告诉你。)本题译文: 这家商店没有红鞋供应，所以玛丽买了一双宗色的鞋.

306. [答案] D. sweep.

[注释] sweep sb，off sb's feet 由两层意思，直义为“(浪等)把某人冲倒”， 转义是“使产生强烈的好感，使完全信服”，如: His speech swept them off their feet。(他的演说使他们五体投地. )

305. [答案] C. stung.

[注释] sting 刺，蛰，叮。在英语中蜜蜂蛰用 sting ;而蚊子“叮”用 bite， 如: A mosquito just bit me. (狗、蛇，咬)，钧用 bite ，scratch 搔，prick vt. 扎(穿)，刺(穿)

304. [答案] B . scope.

[注释] scope 范围，活动范围，理解犯围: 1 Many words are outside the scope of this dictionary. (许多单词是超出了这本词典的范围. ) 2 Very hard words are not within the scope of a child's understanding。(非常难懂的 词是超出了一个孩子的理解范围. ) 3 Economics is beyond the scope of a child's mind. (经济学是孩子理解不了的. )

303. [答案] A. track.

[注释] track(=path made by frequent use)意指“(常走而踏成的)小径”，如:a track across the moor(越过荒野的小径)。passage“通路”，如:force a passage through a crowd(在人群中挤出的一条通路). 可见此处选passage不妥.

302. [答案] D. valuable.

[注释] valuable 宝贵的，有价值的，常可修饰advice， suggestion， assistance， discovery等名词。 precious“贵重的”如: precious metals(贵金 属)，precious stone(宝石)。

301. [答案] D. ideas.

[注释] idea(= thought; picture in mind)念头，思想，想法。

400. The problem had become _____ in his mind, and he could not decide what to do about it.

　A. simplified B. exaggerated C. matured D. isolated

答案解析

399. She tried to _____ out of the window to see the procession more clearly.

　A. bend B. lean C. bow D. slope