We can conclude from this passage that avalanches________

(1)【◆题库问题◆】：[单选,材料题] We can conclude from this passage that avalanches________回答下面的题目Never laugh at a snow covered mountain!Laughter and yelling, during the avalanche season, can cause a deadly pile ofsnow．Huge snow slides are most common in mountains where there are steep slopesthat are well buried in snow and icE．The snow builds up slowly and lands verysoftly．This can create a very touchy, unstable situation．Tons of snowmay be held up by only the friction between snowflakes．The deep snow is like ahouse of cards．The slightest movement can cause it to fall．As soon assomething slips, this great mass of snow will come crashing down themountainsidE．Slides may be started by sound vibrations．They may also be started by the weight of wet, melting snow．Once an avalanchehas been triggered, the cause no longer matters．Moving down a steep slope, itpicks up great speed and added snow．Some avalanches travel as fast as twohundred miles per hour．The force of an avalanche will mow down anything in itspath．Whole houses have been swallowed up by these fast-paced piles of snow．Thewind that is caused by an avalanche is almost as destructive as the snowitselF．Winds from an avalanche have been known to travel as fast as those of atornado．So, when approaching a thicklysnow covered mountain, speak softly!Avalanches can be started by________
A．are common everywhere
B．are not very common
C．have killed people
D．are a thing of the past

【◆参考答案◆】：C

【◆答案解析◆】：选项A和B在文中并未提及。文中提到雪崩的强大力量，可以毁掉整座房子，人肯定也是有伤亡的。选项C是正确的。

(2)【◆题库问题◆】：[单选] 回答{TSE}题Human needs seem endless．They might beregarded as making up several levels．When there is　enough money to satisfy one level of needs,another level appears．Thefirst and most basic level of needs involves fooD．Once this level issatisfied, the second level　of needs, clothing and some sort ofshelter, appears．By the end of World War Ⅱ , theseneeds were satisfied for a great majority of Americans．Then a third level appeareD．It includedsuch items as automobiles and new houses．By1957 or 1958 this third level of needs was fairly well satisfieD．Then, in thelate 1950s, a　fourth level of needs appeared: the"life-enriching level．While the other levels involve physical satisfaction,that is, the feeding, comfort, safety, and transportation, this level stressesmental needs for recognition, achievement, and happiness．It includes a varietyof goods and services．Among them are vacation trips, the best medical anddental care, and recreation．Alsoincluded here are fancy goods and the latest styles in clothing．Onthe fourth level, a lot of money is spent on services, while on the first threelevels more isspent on goods．Afifth level would probably involve needs that can be achieved best by communityaction．Consumers may be spending more on taxes topay for government action against disease, ignorance, crime, and prejudicE．After filling our stomachs, our clothes closets, our garages, our teeth, andour minds, we now may seek to ensure the health, safety, and leisure to enjoymore fully the good things on the first four levels．{TS}According to the passage, man willbegin to think about such needs as housing and clothing only when________
A．he has saved up enough money
B．he has grown dissatisfied with hissimple shelter
C．he has satisfied his hunger
D．he has learned to build houses

【◆参考答案◆】：C

【◆答案解析◆】：【原文大意】人类的需求似乎是无止境的。它可分为几个等级。当有足够的钱满足一个等级后，下个等级就会出现在眼前。第一个也是最基本的等级是食物。一旦这个等级得到满足，对衣物和某种遮蔽之所的需求，也就是第二等级就出现了。第二次世界大战末，人们对这些的需求也满足了。然后是第三等级，包括汽车、房子。到1957年或l958年时，第三个等级也满足了。20世纪50年代末，第四个等级：“生活富裕”出现了。如果说前三个等级是吃饱、舒适、安全、交通这些物质方面的满足的话，第四个等级就是认可、成就、幸福这些精神上的满足。它包括不同的物质和服务，如假期旅行、最好的医疗和牙医、娱乐等。还包括最别致的物品、最时尚的服装。在第四个等级时，人们把大量的钱都花在了服务上，而前几个等级是花在商品上。第五个等级的需求恐怕只有通过团体才能实现了。消费者会给政府付更多的税以抵御疾病、文盲、犯罪、歧视等。在填满了我们的肠胃，丰富了我们的衣柜、更新了我们车库、修整了我们的牙齿、愉悦了我们的精神之后，我们现在所追求的是能够健康、安全、轻松地享受前四个等级的需求。【解析】第二段。根据文中所说，先填饱肚子才能想到保暖：衣物和遮蔽之所。选项C是正确的。

(3)【◆题库问题◆】：[单选] I always regrettednot_________ harder when l was young．
A．studyin9
B．having studied
C．tostudy
D．D to have studied

【◆参考答案◆】：B

(4)【◆题库问题◆】：[单选] 近点距离主要决定于（　　）
A．睫状肌中环行纤维的收缩能力
B．瞳孔括约肌的收缩能力
C．角膜的曲率半径
D．眼球前后径的距离
E．以上都不是

【◆参考答案◆】：E

【◆答案解析◆】：略

(5)【◆题库问题◆】：[单选] 下列关于债权的说法，不正确的是 （　　）
A．债权是对人权
B．债权具有排他性
C．债权具有平等性
D．债权具有相容性

【◆参考答案◆】：B

(6)【◆题库问题◆】：[单选] 心室肌的前负荷取决于（　　）
A．收缩末期的心室容积
B．快速射血期的心室容积
C．等容舒张期的心室容积
D．快速充盈期的心室容积
E．舒张末期的心室容积

【◆参考答案◆】：E

【◆答案解析◆】：略

(7)【◆题库问题◆】：[单选] 毛泽东的人民战争战略战术思想的核心是（　　）
A．积极防御的思想
B．集中优势兵力打歼灭战的思想
C．战略进攻和战略决战的思想
D．战略上藐视敌人、战术上重视敌人的思想

【◆参考答案◆】：A

【◆答案解析◆】：毛泽东根据中国革命战争长期处于 敌强我弱、敌攻我守的态势，为人民军队制定了积 极防御的战略方针，即为了反攻和进攻的防御。 它是毛泽东关于人民战争的战略战术原则的核心 思想，故选“A”。

(8)【◆题库问题◆】：[单选] 下列函数中，为奇函数的是（　）
A．y=-x3
B．y=x3-2
C．
D．

【◆参考答案◆】：A

(9)【◆题库问题◆】：[单选] Ifeverybody is _______, let’s begin our class．
A．sat
B．seated
C．seat
D．sitted

【◆参考答案◆】：B

(10)【◆题库问题◆】：[单选]新中国成立初期，国内的主要矛盾是
A．帝国主义和中华民族之间的矛盾
B．工人阶级和资产阶级之间的矛盾
C．封建主义和民主主义之间的矛盾
D．生产力和生产关系之间的矛盾

【◆参考答案◆】：C