【題目】I __________ the poor rabbit, but I didn't have the right drugs with me at that moment.

A. saved

B. had saved

C. could save

D. could have saved

【答案】D

【解析】句意:我本來能夠救這只可憐的兔子，但是我當(dāng)時沒有對癥的藥。could have done本來能夠做而沒有做。

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：

【題目】

如果我不去參加那個聚會會怎樣呢？

__________ __________ I__________ go to the party?

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】We were invited to his birthday party. If she doesn’t go today, _______.

A. nor do I B. neither do I

C. neither shall I D. nor I shall

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Every human being has a unique arrangement of the skin on his fingers and this arrangement is unchangeable. Scientists and experts have proved the uniqueness of finger-prints and discovered that no exactly similar pattern is passed on from parents to children, though nobody knows why this is the case.

The ridge（脊?fàn)睿﹕tructure on a person's fingers does not change with growth and is not affected by surface injuries. Burns, cuts and other damage to the outer part of the skin will be replaced in time by new one which bears a reproduction of the original pattern. It is only when the inner skin is injured that the arrangement will be destroyed. Some criminals make use of this fact to remove their own finger-prints but this is a dangerous and rare step to take.

Finger-prints can be made very easily with printer's ink. They can be recorded easily. With special methods, identification can be achieved successfully within a short time. Because of the simplicity and economy of this system, finger-prints have often been used as a method of solving criminal case. A suspected man may deny a charge but this may be in vain. His finger-prints can prove who he is even if his appearance has been changed by age or accident.

When a suspect leaves finger-prints behind at the scene of a crime, they are difficult to detect with the naked eye. Special techniques are used to "develop" them. Some of the marks found are incomplete but identification is possible if a print of a quarter of an inch square can be obtained.

【1】Scientists and experts have proved that the pattern of a human being's finger skin__ ___

A. is similar to his mother's

B. is valuable to himself only

C. is like that of others with the same type of blood.

D. is different from that of all others

【2】If your fingers are wounded by knife, fire or other means, the structure of skin will____.

A. be changed partly

B. be replaced by a different one

C. be the same when the wound is recovered

D. become ugly

【3】Some criminals remove their own finger-prints by ____.

A. using printer's ink

B. injuring the inner skin

C. damaging the outer skin

D. damaging the color

【4】Finger-prints have often been used as a method of solving criminal case because it_____.

A. is complicated but reliable

B. is simple and not expensive

C. is expensive but easy to do

D. can bring a lot of money

【5】It is ________for a criminal to deny his crime when finger-prints are used to identify him.

A. worth trying B. successful C. useful D. useless

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Not until ________a third time ________that he had given birth to the reading system for the blind called Braille.

A. Louis Braille tried；he announced

B. did Louis Braille try；he announced

C. Louis Braille had tried；did he announce

D. had Louis Braille tried；had he announced

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】The small boat was almost sunk by the dinosaurs which suddenly ________ to the surface, fighting each other, but fortunately the three men ________ get away.

A. rose; could B. rose; were able to

C. arose; could have been able to D. raised; could have

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】

如果你是我，你會怎么辦？

What __________ you do if you __________ me?

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Hackers threatened _______ Sony release the film ‘The Interview’（also entitled ‘Killing Kim jong un’）on the coming 2014 Christmas，they ______ launch terror attacksresembling 11thSept in 2001，

A. should；will be B. were to；could

C. were；should have D. should；would

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】-Did you look up the time of trains to Beijing?

-Yes, the early train is __________ to leave at 8:30 am.

A. likely

B. about

C. possible

D. due

查看答案和解析>>

同步練習(xí)冊答案