三、完形填空(共15小题;每题2分，共30分。)通读下面的短文，掌握其大意。然后，从每小题的四个选择项中选出最佳选项。
Enough sleep is important to health. The amount of sleep (21) depends on the age of the per-son and the conditions in which sleep (22). The young may need more sleep than the old,hut (23) eight hours are enough for the health of grown-ups. Some can do with less than this amount but (24) may need more. Every person knows his own need. It is then a matter of how to (25) it. Sleep should be always enough to make one relaxed(松弛) and ready for(26)work.
Fresh air is(27) to sound sleep (酣睡). It is not(28) reason for some people to insist that it is practical to sleep in the open air.(29) a person can keep himself warm,out-of-door sleeping probably gives the body (30) complete relaxation.
Ability to sleep is largely a habit. The conditions refen-ed to only lead to sleep. Out-of-door (31), a good habit of regular drinking and the avoidance of late eating and (32) are all helpful to sound sleep. Such factors are largely within the (33) of any person. A bath at (34), neither hot nor cold but of body temperature, may be helpful to sleep. Sleeping pills should never be taken except when suggested by (35) .
第21题单选 第(21)题选
A.wished B.expected C.Needed D.wanted
第22题单选 第(22)题选
A.fails down B.breaks out C.wakes up D.takes place
第23题单选 第(23)题选
A.seldom B.sometimes C.always D.generally
第24题单选 第(24)题选
A.children B.women C.others D.few
第25题单选 第(25)题选
A.help B.satisfy C.demant D.take
第26题单选 第(26)题选
A.hard B.his own C.a day's D.good
第27题单选 第(27)题选
A.necessary B.able C.no good D.best
第28题单选 第(28)题选
A.the best B.at all C.without D.a good
第29题单选 第(29)题选
A.As B.Where C.Unless D.When
第30题单选 第(30)题选
A.a strong B.a most C.a bad D.an exciting
第31题单选 第(31)题选
A.walks B.exercises C.trips D.housework
第32题单选 第(32)题选
A.worry B.fear C.carelessness D.hard work
第33题单选 第(33)题选
A.fight B.plan C.control D.thought
第34题单选 第(34)题选
A.any time B.bed time C.roidnight D.lunch time
第35题单选 第(35)题选
A.the sleeper B.a doctor C.a child D.parents
2017成考报名：2017年成人高考报名时间/入口
2017通关计划：2017年成人高考81天备考复习通关计划
