1)The active involvement of thousands of people in the election campaign surprised him.
(成千上万的人积极参与竞选活动令他惊奇。)
2) He avoids involvement in politics.(他避免卷入政治。)
6. Certainly some of there individuals may have physical limitations that make activity extremely difficult, and others are engaged in time-consuming activities that until finished do not permit opportunities for recreation.
that make activity extremely difficult是一个定语从句,修饰physical limitations.
Be engaged in sth. 意思是be involved in sth.(使从事,使忙于),如:
1)They were engaged in the study of soil conservation.(他们在从事土壤保持的研究。)
2) It is inappropriate for him to engage in this activity.(他从事这一活动是不合适的。)
7.…I'll have no difficulty staying that way.
have (no) difficulty doing sth.(做某事有/无困难),也可以用have (no) trouble doing sth.。如:
1)He has no difficulty understanding the Chinese film.(看懂那部中国电影他没有困难。)
2)I had a lot of trouble getting back to sleep after I answered the phone call.(接过电话后,我无法再入睡。)
8.…you may have made a commitment to a physical fitness program that might be rather narrow in scope.
make (a) commitment to 意思是make a firm promise(作出承诺),或者involvement(投入)。
Narrow in scope意思是范围很窄,很狭隘。我们接触过在形容词后面加介词in再加名词的机构,如similar in appearance(外表相像)。
9.What could I achieve if I were really in top physical condition?
本句中用了虚拟语气,从句中用过去时(be动词用were),主句中用could或should / would / might加动词原形,表示的是与现在事实相反的假设,如:
1)If he were on time, we wouldn't have to wait for him.(如果他能准时,我们就不用等他了。)
2) If they had time now, they would come to see us.(如果他们现在有时间,他们就来看我们了。)
in top physical condition 意思是“身体很健康”。如:
The old man is in top (very good, excellent…) physical condition though he is already 76.
(老人虽已七十六岁,但身体非常健康。)
10. In the final analysis, we think that although fitness will not guarantee that you will live longer, it can help you enjoy the years you do live.
in the final analysis意思是ultimately(归根结底),如:
They realized in the final / last analysis that their job was to tell public the facts.