Newdays,a standard for measuring power has changed.These changes foretell a new standard for measuring power.No longer will a nation's political influence be based solely on the strength of its military forces. Of course, military effectiveness will remain a primary primary measure of power.But political influence is also closely tied to industrial competitiveness. It's often said that without its military the Soviet Union would really be a third-world nation. The new standard of opwer and influence that is evolving now places more emphasis on the ability of a country to compete effectively in the economic markets of the world.
America must recognize this new course of events. Our success in shaping world events over the past 40 years has been the direct result of our ability to adapt technology and to take advantage of the capabilities of our people for the purpose of maintaining peace. Our industrial prowess over most of this period was unchallenged. It is ironic that it is just this prowess that has enabled other countries to prosper and in turn to threaten our industrial leadership.
The competitiveness of America's industrial base is an issue bigger than the Department of Defense and is going to require the efforts of the major institutional forces in our society-government,industry,and education. That is not to say that the Defense Department will not be a strong force in the process because we will. But we simply cannot be, nor should we be, looked upon by others as the savior of American industry.
1. Now a nation's political influence depends on _________.
a. the strength of its military forces
b. its ability to compete in industry
c. economic markets
d. both a and b
2. The Soviet Union was not listed as a third-world nation just because of _________.
a. its powerful military forces
b. its vast land
c. its industrial competitiveness
d. its contributions to world peace
3. The author indicates that ______ is threatening American political power.
a. other countries
b. the declining U.S. industrial base
c. a new standard for measuring power
d. less advanced technology
4. America succeeded in shaping world events over past 40 years probably because of ___________.
a. its ability to adapt technology
b. its ability to take advantage of the capabilities of its people
c. its ability to compete in the world markets
d. both a and b
5. The purpose of writing this article is __________.
a. to draw the readers' attention to a new standard for measuring power
b. to demonstrate American political influence in the world
c. to emphasize that efforts must be made to strengthen the declining U.S. industrial base
d. to show American industrial prowess
15/200答案：dabdc[NextPage]

Trees should only be pruned when there is a good and clear reason for doing so and , fortunately,the number of such reasons is small. Pruning involves the cutting away of obergrown and unwanted branches, and the inexperienced gardener can be encouraged by the thought that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way.
First, pruning may be done to make sure that trees have a desired shape or size. The object may be to get a tree of the right height, and at the same time to help the growth of small side branches which will thicken its appearance or give it a special shape. Secondly, pruning may be done to make the tree healthier. You may cut diseaed or dead wood, or branches that are rubbing against each other and thus cause wounds. The health of a tree may be encouraged by removing branches that are blocking up the centre and so preventing the free movement of air.
One result of pruning is that an open wound is left on the tree and this provides an easy entry for disease, but itis a wound that will heal. Often there is a race between the healing and the desease as to whether the tree will live or die, so that there is a period when the tree is at risk. It should be the aim of every gardener to reduce which has been pruned smooth and clean, for healing will be slowed down by roughness. You should allow the cut surface to dry for a few hurs and then paint it with one of the substances available from garden shops produced especially for this purpose. Pruning is usually without interference from the leaves and also it is very unlikely that the cuts yu make will bleed. If this does happen,it is, of course,impossible to paint them properly.
1.Pruning should be done to ______.
a.make the tree grow taller
b.improve the shape of the tree
c.get rid of the small branches
d.make the small branches thicker
2.Trees become unhealthy if the gardener ______.
a.allows too many branches to grow in the middle
b.does not protect them from wind
c.forces them to grow too quickly
d.damages some of the small side branches
3.Why is a special substance painted on the tree?
a.To make a wound smooth
b.To prevent disease entering a wound
c.To cover a rough surface
d.To help a wound to dry
4.A good gardener prunes a tree______.
a.at intervals throughout the year
b.as quickly as possible
c.occasionally when necessary
d.regular every winter
5.What was the author's purpose when writing this passage?
a.To give pratical instruction for pruning a tree.
b.To give a general description of pruning
c.To explain how trees develop diseases
d.To discuss different methods of pruning.
16/200答案：babca