七选五练习题

七选五练习题

29．________Scientists and experts have proved the uniqueness of fingerprints and discovered that no exactly similar pattern is passed on from parents to children, though nobody knows why this is the case.

The ridge(隆起)structure 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 a new one, which bears a reproduction of the original pattern.

30.________Some criminals make use of this fact to remove their own fingerprints but this is a dangerous and rare step to take.

Fingerprints can be made very easily with the printer's ink. They can be recorded easily.31.________ Because of the simplicity and economy of this system, fingerprints have often been used as a method of solving the criminal case. A suspected man may deny a charge but this may be in vain. 32.________ When a suspect leaves fingerprints behind at the scene of a crime, they are difficult to detect with the naked eye. 33.________ Some of the marks found are incomplete but identification is possible if a print of a quarter of an inch square can be obtained.

A．Special techniques are used to “develop” them.

B．A fingerprint is an impression of the ridge structure.

C．It is only when the inner skin is injured that the arrangement will be destroyed.

D．With special methods, identification can be achieved successfully within a short time.

E．Some criminals may leave their fingerprints at the scene of a crime.

F．His fingerprints can prove who he is even if his appearance has been changed by age or accident.

G．Every human being has a unique arrangement of the skin on his fingers and this arrangement is unchangeable.

【答案】

29.G30.C31.D32.F33.A

Some simple keys to transform your life

The power of choices.

Every one of us makes countless choices every day. Every choice we make has an impact on our lives. 16.________When hunger strikes, we can reach for a healthy, nutritious snack, or we can choose the sugar high of junk food. The more important the decision, the greater its effect. For instance, how do I act towards that person who treated me badly? Do I generally choose to be passive，or do I actively set clear intentions and create what I want in my life? Every choice we make, however big or small, affects us in some way.

17．________

If you are interested in living a richer, fuller life, there is a foundation upon which you can base all of your decisions which can make life better not only for you, but also for those around you. This foundation is to choose based on what's best for all. Imagine a world where every parent, friend, teacher, business person, and politician truly did their best to choose what's the best for all involved in every decision they made. We would certainly live in a more caring, supportive world.

It's the intention.

18．________The answer is simple. It doesn't matter. The matter itself is not the choice you