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23. D. dare 作實義動詞時其后的不定式可帶 to,也可以不帶 to,此句中的實義動詞 dare 的時態(tài)應為一般過去時態(tài)。 19. A. would 表示過去習慣性的動作。 16. C. should /ought to have done“表示本該做某事卻未做”,其否定形式 shouldn’ t /ought not to have done 則表示“本不該做某事卻做了”。 12. A. shall 用于主語為第一、三人稱的疑問句中表示建議、征求對方意見時,其回答一般用“ Yes, you must.”或“ No, you needn’ t.”。 7. B. mustn’ t 表示“禁 止”, may 表示不太確定的推測。 4. D. 在表示能力時, can(could)和 be able to 在很多情況下能夠互換,但在下列情況下只能用 be able to: ①位于助動詞后;②位于情態(tài)動詞后;③表示成功地做了某事。 must D. can’ t。 may D. ought to。洛基英語 情態(tài)動詞專練及解析 情態(tài)動詞專練及解析 1. We hope that as many people as possible _____join us for the piic tomorrow. A. need B. must C. should D. can 2. Some aspects of a pilot’ s job _____ be boring, and pilots often _____ work at inconvenient hours. A. can。 must 3. A left luggage office is a place where bags _____ be left for a short time, especially at a railway station. A. should B. can C. must D. will 4. The fire spread through the hotel very quickly but everyone _____ get out. A. had to B. would C. could D. was able to