54. He was reading his book, completely _______ to the world.

A. lost                                                             B. losing

C. to lose                                                         D. to have lost

【解析】A。(be) lost to sth 为习语，意为“不再受某事物的影响”、“将某事物置之度外”。

53. “Mum, why do you always make me eat an egg every day?” “________ enough protein and nutrition as you are growing up.”

A. Get                                                             B. Getting

C. To get                                                         D. to be getting

【解析】C to get enough protein and nutrition 表目的。

52. “Where is David?” “He is upstairs ______ ready to go out.”

A. to get                                                          B. getting

C. to be getting                                                D. having got

【解析】B。现在分词短语表伴随。

51. The discovery of new evidence led to _______.

A. the thief having caught                                 B. catch the thief

C. the thief being caught                                   D. the thief to be caught

【解析】C。lead to 意为“导致”，其中的 to 是介词，不是不定式符号，若后接动词要用动名词。由于逻辑主语 the thief 与catch 为被动关系，故答案选 C。

50. It is said that in Australia there is more land than the government knows _______.

A. it what to do with                                        B. what to do it with

C. what to do with it                                         D. to do what with it

【解析】C。do with 与 what 连用可以表示“处置”、“放置”、“利用”等。。

 48. _______ the road round to the right and you’ll find his house.

A. Follow                                                        B. Following

C. To follow                                                    D. Followed

【解析】A。但容易误选B或C，误认为这是非谓语动词作状语。

根据句中的连词and 可推知它是一个并列句。

 49 To test eggs, _____ them in a bowl of water: if they float they’re bad, if they sink they’re good.

A. put                                                             B. putting

C. to put                                                          D. to be putting

【解析】A 考查祈使句的用法。但容易误选B。

46. Which do you enjoy ____ your weekend, swimming or fishing?

A. spending                                                     B. being spent

C. spend                                                          D. to spend

【解析】D。enjoy 的宾语是句首的疑问词 which，不是其后的动词 spending。此题中的 to spend… 用作目的状语。

47The old house we paid a visit _____ at the top of the hill.

A. standing                                                      B. to stand

C. to standing                                                  D. to stands

【解析】D。we paid a visit to 是修饰the old house 的定语从句，句中的stands 为主句谓语。

45. How happy we are! The holiday we have been looking forward _______ at last.

A. to has come                                                 B. to have come

C. to having come                                            D. has come

【解析】A。短语 look forward to意为“盼望”，其中的 to 是介词，而不是不定式符号，所以后接动词要用动名词，许多同学据此便选择了C。但问题是，句中介词 to 的宾语不是have come，而是the holiday。正解的句子分析是：the holiday为句子主语，we have been looking forward to 是修饰主语的定语从句(介词 to 的宾语是引导该定语从句的关系代词 that，被省略)，has come 是句子谓语。

44. The managers discussed the plan that they would like to see ______ the next year.

A. carried out                                                  B. carrying out

C. carry out                                                     D. to carry out

【解析】A。分析句子结构，通过翻译句意可以突破。

43.The old professor told us every part of the materials should be made use of ______ the power station.

A. to build                                                       B. building

C. build                                                           D. built

【解析】 A，不是 B。为便于理解，可先考虑以下结构：

…make use of every part of the materials to build the power station

由此可见，make use of 的宾语是 every part of the materials，其后的不定式 to build the power station 为目的状语。