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291. Tell your brother to come _____, because it's going to rain in a minute or two.

A. indoors　　 B. outdoors　　 C. outward　　 D. inwards

[答案] A. indoors

[注釋] 按句子的邏輯意思應選indoors adv. 向屋里；在屋里，inwards adv，向內，向中心，outward 向外。outdoors 是 indoors 的反義詞。

本文譯文: 叫你兄弟進屋來，因為天馬上要下雨了.

290. A successful scientist needs _____ if he wants to make hypothesis (假設) of how processes work and how events take place.

　 A. permission　　 B. penetration

　 C. imagination　　 D. convention

[答案] C. imagination.

[注釋] imagination 想象力；penetration 穿透；permission 允許; convention 慣例，常規(guī)。

289. This year the farmers were just able to gather in the _____ before the fine weather came to an end.

A. collection　　 B. harvest　　 C. flower　　 D. plant

[答案] B. harvest.

[注釋] gather in “收獲(莊稼)”: The farmers are gathering in the corn.

288. He hated the war so much that he decided to leave the army _____.

　 A. for long　　 B. once in a while

　 C. for good　　 D. once upon a time

[答案] C. for good.

[注釋] for good (=permanently)永久地:He says he's leaving the country for good. for long 長久地。按本題題意，用 for long 不妥。once upon a time 從前。once in a while 偶爾。

287. We suddenly saw the bus about to leave and had to run _____ to catch it.

A. hardly　　 B. awkwardly　　 C. hard　　 D. strongly

[答案]C hard.

[注釋]run hard意為“使勁跑”，句中hard是副詞。Hardly“幾乎不“，是否定副詞，與本題不符。

286. Be careful how you _____ that jug, it will break very easily.

　A. pour　 B. operate　 C. handle　 D. employ

[答案]C. handle.

[注釋]handle意為“用手拿......”:Wash your hands before you handle my books.

285. If we can _____ our present difficulties, then everything should be all right.

A. get off　 B. come across　 C. come over　 D. get over

[答案]D. get over.

[注釋]get over (difficulties)克服(困難)。

284. Many university courses are not really _____ to the needs of students or their future employers.

A.associated　 B. relative　 C. geared　 D. sufficient

[答案]C. geared.

[注釋]be geared to與......相連接的，與......搭配得上的。Be relative to與......有關的：This is not relative to the accident.(這和這次事故無關。)本題意指courses(課程)是否與needs(需要)掛得上鉤，而不是一般得有點關系，故應選geared.

283. Some areas, _____ their severe weather conditions, are hardly populated.

A. due to B. but for C. in spite of D.with relation to

[答案]A. due to.

[注釋]due to由于。有些語言專家認為due to引導的短語，在句中只能作表語，如：1)His absence was due to the storm. 2)The delay was due to heavy traffic. 3)This accident was due to his carelessness.但現代英語里due to引導的短語可以作狀語用，如：He failed due to carelessness. Due to heavy traffic, he was late for an hour or so.

282. When the little child caught sight of the young woman _____ in white he started brawling immediately.

A. dressed　 B. wearing　 C. worn　 D. putting on

[答案]A. dressed.

[注釋]be dressed in 穿這......衣服。Wear意為“穿著”是及物動詞，語法結構上與本題不符。Put on穿上，強調的動作。