练习
一年级体育练习(可直接打印)

一年级体育练习(可直接打印)以下是一些适合一年级学生的体育练,帮助他们发展身体素质和锻炼身体。
这些练可以在学校或家庭进行,无需特殊设备。
请教师或家长监督学生进行这些练,确保他们的安全和正确的执行。
热身运动在进行任何体育练之前,请确保学生进行适当的热身运动。
这些热身运动有助于预防运动伤害,并提高身体的柔韧性和血液循环。
- 跳绳:让学生跳绳2-3分钟,以提高心率和热身身体。
- 摇臂运动:让学生站直,双臂伸直放在身体两侧。
用力摇动双臂,每侧10次,以活动手臂肌肉。
- 踮脚尖走:让学生踮起脚尖,以小步跑的方式向前走,保持身体稳定,重复10次,以锻炼小腿肌肉。
跑步练跑步是锻炼心肺功能和增强体力的好方法。
以下是一些适合一年级学生的跑步练。
- 短跑:在操场或者指定地点,划定一段短跑的距离(例如50米),让学生进行短跑练。
鼓励他们全力冲刺,但在安全范围内。
- 长跑:为学生规划一段较长的跑步路线,例如操场一圈或者一条合适的步行道。
鼓励他们用合适的速度跑完这段距离,并逐渐增加跑步时间。
平衡练平衡练有助于培养学生的身体协调能力和稳定性。
- 单脚站立:让学生单脚站立,保持平衡的同时抬起另一只脚,保持10秒钟。
然后换脚进行练。
- 走直线:在地面上用粉笔或者绳子画一条直线,让学生沿直线走。
鼓励他们保持平衡和稳定,并尽量不离开直线。
球类练球类运动可以培养学生的手眼协调能力和团队合作能力。
- 投篮练:为学生提供一个合适的高度的篮球架,让他们进行投篮练。
可以使用合适大小的篮球或者软球进行投篮。
- 传球练:组织学生之间进行传球练。
可以使用足球、篮球或者其他适合的球进行练。
拉伸运动和冷却在结束体育练之前,学生需要进行适当的拉伸运动和冷却。
- 大腿拉伸:让学生用一只手抓住一只脚的脚踝,将脚后跟向臀部拉伸,保持10秒钟,然后换脚进行练。
- 拉伸手臂和肩膀:让学生伸直一只手臂,用另一只手臂扶住伸直的手臂肘部,然后轻轻向身体的反方向拉伸,保持10秒钟,然后换手进行练。
被动操

被动操1、扩胸运动:仰卧,双手握住宝宝双手的腕部,让宝宝握住家长的大拇指,两臂放于身体两侧。
第1拍将双手向外平展与身体成90°,掌心向上;第2拍两臂向胸前交叉。
2、弯臂运动:仰卧,双手握住宝宝双手的腕部,让宝宝握住家长的大拇指,两臂放于身体两侧。
第1拍将左臂肘关节前屈;第2拍将左肘关节伸直还原;第3、4拍换右手屈伸肘关节,还原。
3、绕臂运动:仰卧,双手握住宝宝双手的腕部,让宝宝握住家长的大拇指,两臂放于身体两侧。
第1-3拍将左臂弯曲贴近身体,以肩关节为中心,由内向外做回环动作,第4拍还原;第5-8拍换右手,动作相同。
4、伸臂运动:仰卧,双手握住宝宝双手的腕部,让宝宝握住家长的大拇指,两臂放于身体两侧。
第1拍两臂向外平展,掌心向上;第2拍两臂向胸前交叉;第3拍两臂上举过头,掌心向上;第4拍还原。
5、翘脚运动:仰卧,左手操作宝宝的左踝部,右手握住左足前掌。
第1拍将宝宝足尖向上,屈曲踝关节;第2拍足尖向下伸展踝关节;连续做8拍。
后8拍换右足,做伸展右踝关节动作。
(注意:伸屈时动作要求自然,切勿用力过猛。
)6、屈腿运动:仰卧,家长两手分别握住宝宝的两个膝关节下部。
第1拍屈宝宝左膝关节,使膝缩近腹部;第2拍伸直左腿;第3、4拍屈伸右膝关节。
左右轮流,模仿蹬车动作。
(注意:屈膝时稍帮助宝宝用力,伸直时动作放松。
)7、举腿运动:仰卧,两下肢伸直平放,家长两掌心向下,握住宝宝两膝关节。
第1、2拍将两下肢伸直上举90°,第3、4拍还原。
(注意:两下肢伸直上举时臀部不离开地垫,动作轻缓。
)8、翻身运动:仰卧并腿,两臂屈曲放在胸前,家长左手扶胸腹部,右手垫于宝宝背部。
第1、2拍轻轻地将宝宝从仰卧转为左侧卧,第3、4拍还原。
第5~8拍家长换手将宝宝从仰卧转为右侧卧,还原。
(注意:俯卧时宝宝的两臂自然地放在胸前,使头抬高。
)9、起坐运动:仰卧,家长双手握住宝宝双手,或用右手握住宝宝左手,左手按住宝宝双膝。
化简求值专项练习20题带答案

化简求值专项练习题1.先化简,再求值:2(3a2﹣ab)﹣3(2a2﹣ab),其中a=﹣2,b=3.2.先化简,再求值:6a2b﹣(﹣3a2b+5ab2)﹣2(5a2b﹣3ab2),其中a=﹣2,b=.3.先化简,再求值:3x2y2﹣[5xy2﹣(4xy2﹣3)+2x2y2],其中x=﹣3,y=2.4.先化简,再求值:5ab2+3a2b﹣3(a2b﹣ab2),其中a=2,b=﹣1.5.先化简,再求值:2x2﹣y2+(2y2﹣x2)﹣3(x2+2y2),其中x=3,y=﹣2.6.先化简,再求值:5x2﹣[x2+(5x2﹣2x)﹣2(x2﹣3x)],其中x=.7.先化简,再求值:(6a2﹣6ab﹣12b2)﹣3(2a2﹣4b2),其中a=﹣,b=﹣8.8.先化简,再求值:x2y﹣(2xy﹣x2y)+xy,其中x=﹣1,y=﹣2.9.先化简,再求值:5(xy+3x2﹣2y)﹣3(xy+5x2﹣2y),其中x=,y=﹣1.10.当|a|=3,b=a﹣2时,化简代数式1﹣{a﹣b﹣[a﹣(b﹣a)+b]}后,再求这个代数式的值.11.先化简,再求值:a2﹣(2a2+2ab﹣b2)+(a2﹣ab﹣b2),其中a=3,b=﹣2.12.先化简,再求值:3a2﹣(2ab+b2)+(﹣a2+ab+2b2),其中a=﹣1,b=2.13.先化简再求值,已知a=﹣2,b=﹣1,c=3,求代数式5abc﹣2a2b﹣[(4ab2﹣a2b)﹣3abc]的值.14.先化简,再求值:﹣2(ab﹣3a2)﹣[a2﹣5(ab﹣a2)+6ab],其中a=2,b=﹣3.15.先化简,再求值:3a3﹣[a3﹣3b+(6a2﹣7a)]﹣2(a3﹣3a2﹣4a+b)其中a=2,b=﹣1,16.先化简,再求值:(5a2b+4b3﹣2ab2+3a3)﹣(2a3﹣5ab2+3b3+2a2b),其中a=﹣2,b=3.17.先化简,再求值:(a2﹣3ab﹣2b2)﹣(a2﹣2b2),其中,b=﹣8.18.先化简,再求值:8mn﹣[4m2n﹣(6mn2+mn)]﹣29mn2,其中m=﹣1,n=.19.化简求值:3(x3﹣2y2﹣xy)﹣2(x3﹣3y2+xy),其中x=3,y=1.20.先化简再求值:3x2y﹣[2xy2﹣2(xy﹣x2y)+xy]+3xy2,其中x=,y=﹣5.整式化简求值90题参考答案:1.原式=6a2﹣2ab﹣6a2+3ab=ab,当a=﹣2,b=3时,原式=ab=﹣2×3=﹣6.2.原式=6a2b+3a2b﹣5ab2﹣10a2b+6ab2=﹣a2b+ab2 ,把a=﹣2,b=代入上式得:原式=﹣(﹣2)2×+(﹣2)×2=﹣2﹣=﹣2.3.原式=3x2y2﹣5xy2+4xy2﹣3﹣2x2y2=x2y2﹣xy2﹣3当x=﹣3,y=2时,原式=454.原式=5ab2+3a2b﹣3a2b+2ab2=7ab2.当a=2,b=﹣1时,原式=7×2×(﹣1)2=14.5.原式=2x2﹣y2+2y2﹣x2﹣3x2﹣6y2=﹣2x2﹣5y2.当x=3,y=﹣2时,原式=﹣18﹣20=﹣38.6.原式=5x2﹣(x2+5x2﹣2x﹣2x2+6x)=x2﹣4x当x=时,原式=7.原式=6a2﹣6ab﹣12b2﹣6a2+12b2=﹣6ab,当a=﹣,b=﹣8时,原式=﹣6×(﹣)×(﹣8)=﹣24.8.原式=x2y﹣2xy+x2y+xy=2x2y﹣xy,当x=﹣1,y=﹣2时,原式=2×(﹣1)2×(﹣2)﹣(﹣1)×(﹣2)=﹣6.9.原式=5xy+15x2﹣10y﹣3xy﹣15x2+6y=2xy﹣4y,当x=,y=﹣1时,原式=2××(﹣1)﹣4×(﹣1)=3.10.原式=1+a+b;当a=3时,b=1,代数式的值为5;当a=﹣3时,b=﹣5,代数式的值为﹣7.a2﹣(2a2+2ab﹣b2)+(a2﹣ab﹣b2)11.原式==a2﹣2a2﹣2ab+b2+a2﹣ab﹣b2=﹣a2﹣3ab.当a=3,b=﹣2时,原式=﹣×32﹣3×3×(﹣2)=﹣3+18=1512.原式=2a2﹣ab+b2当a=﹣1,b=2.原式=2a2﹣ab+b2=2×(﹣1)2﹣(﹣1)×2+22= 813.原式=5abc﹣2a2b﹣4ab2+a2b+3abc=8abc﹣a2b﹣4ab2;a=﹣2,b=﹣1,c=3时,原式=8×2×1×3﹣4×(﹣1)﹣4×(﹣2)×1=60.14.原式=﹣2ab+6a2﹣(a2﹣5ab+5a2+6ab)=﹣2ab+6a2﹣a2+5ab﹣5a2﹣6ab=﹣3ab;当a=2,b=﹣3时,原式=﹣3×2×(﹣3)=1815.原式=3a3﹣[a3﹣3b+6a2﹣7a]﹣2a3+6a2+8a﹣2b=3a3﹣a3+3b﹣6a2+7a﹣2a3+6a2+8a﹣2b=15a+b当a=2,b=﹣1时,原式=15×2﹣1=29.16.原式=5a2b+4b3﹣2ab2+3a3﹣2a3+5ab2﹣3b3﹣2a2b=a3+3a2b+3ab2+b3,当a=﹣2,b=3时,原式=(﹣2)3+3×(﹣2)2×3+3×(﹣2)×32+33=﹣8+36﹣54+27=1.17.原式=a2﹣3ab﹣2b2﹣a2+2b2=﹣3ab,当,b=﹣8时,原式=﹣3×()×(﹣8)=﹣12.18.原式=8mn﹣[4m2n﹣6mn2﹣mn]﹣29mn2=8mn﹣4m2n+6mn2+mn﹣29mn2=9mn﹣4m2n﹣23mn2当m=﹣1,n=时,原式=9×(﹣1)×﹣4×12×﹣23×(﹣1)×=﹣﹣2+=﹣.19.原式=3x3﹣6y2﹣3xy﹣3x3+6y2﹣2xy=﹣5xy,当x=3,y=1时,原式=﹣5×3×1=﹣15.20.原式=3x2y﹣[2xy2﹣(2xy﹣3x2y)+xy]+3xy2=3x2y﹣(2xy2﹣2xy+3x2y+xy)+3xy2=3x2y﹣2xy2+2xy﹣3x2y﹣xy+3xy2=xy+xy2,当x=,y=﹣5时,原式=×(﹣5)+×25=.。
角的认识练习题

角的认识一、判断题(共13题;共26分)1.角的大小与边的张开大小无关,与边的长短有关。
()2.12时15分时针和分针形成的角是锐角。
3.直角比锐角大。
()4.9时30分,钟面上的时针和分针形成的角是直角。
()5.在一个三角形中,最多只有一个直角或一个钝角。
()6.角的边画的越长,角就越大。
()7.两条直线相交的四个角中如果有一个角是直角,那么其他的三个角都是直角。
()8.用放大镜去看90°的角,角的大小不会发生变化。
()9.三角形有3个角,将一张三角形纸剪掉一个角后,还剩2个角。
()10.比90°大的角是钝角。
()11.两个锐角拼成的角一定是钝角.()12.所有锐角的大小都是相等的。
()13.任意两个锐角度数之和一定比钝角要大。
()二、解答题(共2题;共10分)14.你能在下图中找到直角吗?请你用直角符号把所有的直角都标记出来。
15.根据给出的时间画上缺少的时针或者分针,再看时针和分针组成的是什么角,填在()里。
三、作图题(共4题;共35分)16.画一画。
(1)以点O为顶点画一个角。
(2)画线段CD,长5厘米。
17.画一条比5厘米少3厘米的线段。
18.请在下面每个图中再画一条线,分别组成一个锐角、一个直角和一个钝角。
19.画一画。
(1)用一副三角板拼出一个锐角并画下来。
(2)画一条比2厘米长2厘米的线段。
四、综合题(共7题;共35分)20.数一数。
(1)一共有________条线段。
(2)一共有________个角。
21.填一填。
有________个角有________个角22.数一数,填一填。
________个角________个三角形________个角________个三角形_______个三角形________个直角,________个锐角,________个钝角________个直角,________个锐角,________个钝角________个直角,________个锐角,________个钝角24.在下面的图中,你能找到几个直角?几个锐角?几个钝角?(1)________个直角,________个锐角,________个钝角。
练习的反义词

练习的反义词基本解释[释义](1) 基本义:(动)反复学习;以求熟练。
练习武艺。
(作谓语)(2) (名)为巩固学习效果而安排的作业等。
[构成]并列式:练+习[例句]练习题。
(作定语)交练习。
(作宾语)近义词实习、操练、操演、演习、老练、熟习、纯熟、练、熟练、进修、研习、学习反义词生疏英文翻译1.(反复学习) practise; practice2.(习题或作业等) exercise详细解释◎ 练习liànxí[practice;practise] 为了获得熟练技巧而经常进行某种动作练习大刀练习射击◎ 练习liànxí[exercise] 习题或作业(如一篇)拼音练习(1).操练;训练。
《三国志·魏志·张范传》:“士不素抚,兵不练习,难以成功。
”《北齐书·高昂传》:“ 敖曹所将部曲,练习已久。
” 元李文蔚《蒋神灵应》第一折:“开田畴,练习军士。
” 清黄遵宪《陆军官学校开校礼成》诗:“制胜非有他,所贵在练习。
”(2).反复学习,以求熟练。
《英烈传》第六八回:“你做父亲,不令练习女工,反事末务!”《老残游记》第七回:“当初传下这个拳法来的时候,专为和尚们练习了这拳,身体可以结壮,精神可以悠久。
” 老舍《月牙儿》十三:“我的字还需要练习。
”(3).熟悉谙习。
《晋书·胡毋辅之传》:“父原,练习兵马,山涛称其才堪边任。
”《北史·阎毗传》:“ 帝嗣位,盛修军器,以毗性巧,练习旧事,詔典其职。
” 宋司马光《赠卫尉少卿司马府君墓表》:“驾部君宽厚有守,练习法令,善为政吏,民不能欺。
”《明史·高拱传》:“ 拱练习政体,负经济才,所建白皆可行。
”。
击剑步伐练习题

击剑步伐练习题击剑是一项古老而优雅的运动,它融合了力量、速度和技巧。
准确的步伐是击剑运动的基础,它不仅能为选手提供战术优势,还能提高反应速度和身体协调性。
以下是几个针对击剑步伐的练习题,帮助你提高击剑技巧和整体水平。
练习一:前后步练习这个练习可以帮助你熟悉击剑的前后步移动。
做好准备姿势,将重心放在后脚,然后迈出一步,将前脚放在身体的中心。
然后反方向迈出一步,将重心转移到前脚。
重复这个动作,确保前后移动的步伐平稳流畅。
可以练习将前后步与击剑动作结合起来,例如进行冲刺攻击或后撤闪避。
练习二:侧步练习击剑比赛中,侧步是非常常见的动作,可以帮助选手避开对手的进攻并找到更好的进攻角度。
这个练习要求你迈出一步并向一侧移动,保持身体平衡和稳定。
确保侧步后还能够立即做出出击或防守的反应。
可以练习进行多次的侧步,逐渐提高速度和灵活性。
练习三:跳跃练习跳跃是击剑中的一种高难度技巧,它需要良好的身体协调性和爆发力。
在练习中,你可以设置一些小障碍物(例如横放的绳子),跳跃过它们。
这有助于提高你的爆发力和灵活性,并模拟真实比赛中需要跳跃的情况。
在跳跃的过程中保持身体平衡,并注意保护好手部和脚部。
练习四:方向转变练习这个练习要求你在击剑动作中迅速转换方向。
可以选择一个目标(例如一个标志牌或者图标)设在距离你几步的地方,然后利用上述步伐移动技巧快速地朝不同的方向移动和攻击。
这个练习旨在帮助你更好地掌握方向转变的技巧和节奏感,提高你在比赛中的反应速度和灵活性。
练习五:配合练习击剑是一项对手之间的交流运动,良好的配合是成功的关键。
在练习中,你可以与一位击剑伴侣进行对抗,通过模拟真实比赛中的情况来提高自己的技巧。
注意与伴侣之间的配合和协作,同时注意保护好自己和对方的安全。
这个练习可以帮助你更好地理解击剑动作和战术,并提高你在比赛中的整体实力。
通过这些击剑步伐练习题,你可以逐步提高你的击剑技巧和整体水平。
请记住,在进行练习时要确保安全,并与教练或有经验的击剑选手一起进行,以获得更好的指导和建议。
练习题及参考答案

1第一章1-1. 晶体与非晶体的本质区别是什么?单晶体为何有各向异性而实际金属表现为各向同性?(1)晶体中的质点在空间作有规则的排列,而非晶体内部的质点排列不规则 (2)因为不同的晶面及晶向上,原子的排列情况不同,所以晶体表现为各向异性,而实际金属是由很多方向各异的单晶体杂乱排列而成,所以整体表现为各向同性。
1-4. 铜和铁室温下的晶格常数分别为0.286n m 和0.3607n m ,求1c m 3铁和铜中的原子数。
1n m (n a n o m e t e r )=10--99m =10A (a n g s t r o n g ) 铜的晶格常数=0.286 x 10--77c m 铁的晶格常数=0.3607 x 10--77c m1c m 3铜的原子数=3)710286.0(31cm x cm - x 4 = 1.71x 10231c m 3 铁的原子数=3)7103607.0(31cm x cm -x 2 = 4.26x 102221-5. 常见的金属晶体典型结构有哪几种?α-F e , γ-F e , C u , A l , N i , P b , C r , V , M o , M g , Z n , W 各属于何种晶体结构?面心立方结构、体心立方结构、密排六方结构 γ-F e , C u , A l , N i , P b - 面心立方结构 α-F e , C r , V , M o , W - 体心立方结构 M g , Z n - 密排六方结构1 作图表示立方晶系(211)、(112)、(210)、(321)、(223)、(236)晶面与[111]、[111]、[021]、[112]、[211]、[123]晶向。
解:如图所示。
(211)、(112)、(210)、(321)、(223)、(236)晶面:(211) (112) (210)1.2★作图表示立方晶系(211)、(112)、(210)、(321)、(223)、(236)晶面与[111]、[111]、[021]、[112]、[211]、[123]晶向。
解决问题训练(每天两题)

1、二(1)班有男生22人,女生20人。
现在把他们平均分成7组,每组有多少人?1、饼干每箱56元,洗衣粉每袋4元。
妈妈拿着80元钱买了一箱饼干,余下的钱买洗衣粉,可以买几袋?2、一个加数是25,另一个加数比它多16,它们的和是多少?3、一个加数是25,另一个加数比它少16,他们的和是多少?4、76加上34与18的差,和是多少?5、23与37的和再减去15,差是多少?7、二(1)班有50位小朋友,老师买了7盒月饼,每盒8块,每人一块月饼够吗?如果不够,还差多少?8、二年级一班有152人,二班有138人,三班有147人。
医院要给我们二年级的学生注射疫苗,它们要准备多少个一次性注射器?9、数学书每包8本,共56元,语文书每本5元。
哪种书更便宜?便宜多少钱?10、丽丽写了6天大字,前5天每天写3张纸,最后一天练了4张纸,丽丽一共写了多少张纸?11、明明有18元钱,小灵有24元钱,小灵应该给明明多少元钱,两人的钱数才一样多?11、一桶油连桶重19千克,倒了一半油后,连桶重12千克。
倒掉了多少油?油桶里原来有多少千克油?12.小花将45只苹果平均分给9个小朋友,每人得到几只苹果?13.一串糖葫芦有5只山楂,7串糖葫芦一共有几只山楂?14.花园里有8盆月季花,一串红的盆数是月季花的5倍,一串红有几盆?15.阳光公园里有柳树28棵,银杏树7棵,柳树的棵数是银杏树的几倍?16. 二年级有40位学生,参加跳绳比赛的有16人,参加围棋比赛的有7人,剩下的是不参加比赛的,那不参加比赛的有几人?17.有7袋糖果,每袋9块,我吃了6块,还剩下几块?18.小明练书法,一张纸上只能写8个大字,如果要写50个大字,那么小明需要几张纸?19.有一堆苹果,不到50只,把这堆苹果平均分给7个人,还余下3只,这堆苹果有几只?20. 妈妈今年32岁,冬冬今年7岁,当妈妈50岁时,冬冬几岁?21. 小玲装糖,每袋糖一样多,已经装了8袋,桌上还剩4粒糖;如果装9袋,还缺3粒,每袋装几粒?一共有几粒糖?22、一、二、三年级一共修理椅子52把,一年级修理了20把,二年级修理了18把。
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Grammar and VocabularySection ADirections: After reading the passages below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.(A)Jimmy is an automotive mechanic, but he lost his job a few months ago. He has good heart, but always feared _____25_____ (apply) for a new job.One day, he gathered up all his strength and decided to attend a job interview. His appointment was at 10 am and it was already 8:30. While waiting for a bus to the office where he was supposed _____26_____ (interview), he saw an elderly man wildly kicking the tyre of his car. Obviously there was something wrong with the car. Jimmy immediately went up to lend him a hand. When Jimmy finished working on the car, the old man asked him how much he should pay for the service. Jimmy said there was no need to pay him; he just helped someone in need, and he had to ru sh for an interview. Then the old man said, “Well, I could take you to the office for your interview. It’s _____27_____ (little) I could do. Please. I insist.” Jimmy agreed.Upon arrival, Jimmy found a long line of applications waiting to be interviewed. Jimmy still had some grease on him after the car repair, but he did not have much time _____28_____ (wash) it off or have a change of shirt. One by one, the applicants left the interviewer’s office with _____29_____ (disappoint) look on their faces. Finally his name was called. The interviewer was sitting on a large chair facing the office window. Rocking the chair back and forth, he asked, “Do you really need to be interviewed?” Jimmy’s heart sank. “With the way I look now, how could I possibly pass this i nterview?” he thought to himself.Then the interviewer turned the chair and to Jimmy’s surprise, it was the old man he helped earlier in the morning. It turned out he was _____30_____ General Manager of the company. “Sorry I had to keep you waiting, but I was pretty sure I made the right decision to have you as part of our workforce _____31_____ you even stepped into the office. I just know you’d be a trustworthy worker. Congratulations!” Jimmy sat down and they shared a cup of well-deserved coffee as he landed himself a new job.(B)“Look, it’s Baldy!” A boy shouted in my direction across the playground. Even though I was used to regular insults because of the scars on my head, it was still horrible to hear. I sighed as I headed back to the class.When I was just 20 months old, I suffered serious burns after a bowl full of hot oil feel onmy head. I was rushed to hospital and had to stay there for weeks while the doctors fought to save my life. “Holly’s very lucky to be alive,” they told Mum and Dad. “But she _____32_____ (leave) with scars on her head, and of course her hair won’t grow there.”As a child, I cared much about my scars, so I usually wore a scarf to cover _____33_____ up when I left home. ____34______I didn’t, people would call me horrible names like Baldy. Although my friends were always comforting me, they never really understood _____35_____ it felt.Then through the hospital I was introduced to a children’s burns camp, where children like me can get any help. There I met 14-year-old Stephanie, _____36_____ burns are a lot more serious than mine. But she is so strong that she never lets anyone put her down. “You_____37_____ listen to what people say about what you look like because we’re not different from anyone else, Holly, ” She encouraged me. “And you don’t need to wear a scarf because you look great _____38_____ it!” For the first time in my life I could speak to someone who’d been through something similar . So weeks later, at my 13th birthday party, inspired by her bravery, I gave up my scarf and showed off my scars. It felt amazing not having to hide away behind my scarf.Now, I am proud of what I look like and much happier, because I _____39____ (realize) it is your personality that decides _____40_____ you truly are.Section BDirections: Complete the following passage by using the words in the box. Each word can ONL YThere are questions asked about children and pets all the time. W hat’s the right age to care for a pet? What’s t he best way to discuss a pet’s death? Should the parents get rid of the cat if one child is allergic to him? Will the dog bite the baby?But now researchers are looking at a _____41_____ of positive questions, in normal child development, in childhood obesity, in traumatized(受创伤的) children and in autism(抑郁症). Pets, you might say, are having their day.There is evidence that some individual kids seem to benefit from their relationship with pets. Many families _____42_____ pets in the first place for the children’s sake, said Alan Beck, director of the Center for the Human-Animal Bond at Purdue University. “Why do you have an animal? A high percentage, because they believe it’s good for the kids.There’s a common _____43_____, for instance, that living with a pet teaches children skills that they can use in their social _____44_____ with other humans.The hope that children may learn empathy and communication skills from animals has led to speculation about pets in the lives of people with autism. Evidence shows that some children who have great difficulty with human social interactions can form deep bonds with animals.Besides, with so many children struggling with obesity, dog-walking is being seen as a_____45_____ to increase exercise in children. “This is a hig hly _____46_____ physical activity, when children walk with a dog,” Dr. Johnson said.This is a(n) _____47_____ from the past discussion of pets decades ago, which tended to focus on risks, such as the connection between pets and allergies.Pets affect so many children in so many ways — immune systems, developing social skills, exercise patterns, family circumstances. Many effects are positive,The strongest evidence of the importance of pets, Dr. Melson said, comes from children themselves, who often cite pets as _____48_____ of emotional support. “The animal is available when you come home from school,” she continued. “Some species will give you at least the illusion of _____49_____ acceptance — at least, if you have a _____50_____ in your hand.”Section BDirections: Read the following passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage you have just read.(C)We all know that the normal human daily cycle of activity is of some 7-8 hours’ sleep alternation with some 16-17 hours’wakefulness and that, broadly speaking, the sleep normally coincides with the hours of darkness. Our present concern is with how easily and to what extent this cycle can be modified.The question is no mere academic one. The ease, for example, with which people can change from working in the day to working at night is a question of growing importance in industry where automation calls for round-the-clock working of machines. It normally takes from five days to one week for a person to adapt to a reversed routine of sleep and wakefulness, sleeping during the day and working at night. Unfortunately, it is often the case in industry that shifts are changed every week; a person may work from 12:00 midnight to 8:00 a.m. one week, 8:00 a.m. to 4:00 p.m. the next, and 4:00p.m. to 12:00 midnight the third and so on. This means that no sooner has he got used to one routine than he has to change to another, so that much of his time is spent neither working nor sleeping very efficiently.The only real solution appears to be to hand over the night shift to a number of permanent night workers. An interesting study of the domestic life and health of night-shift workers was carried out by Brown in 1957. She found a high incidence of disturbed sleep and other disorders among those on alternating day and night shifts, but no abnormal occurrence of these phenomena among those on permanent night work.This latter system then appears to be the best long-term policy, but meanwhile something may be done to relieve the strains of alternate day and night work by selecting those people who can adapt most quickly to the changes of routine. One way of knowing when a person has adapted is by measuring his body temperature. People engaged in normal daytime work will have a high temperature during the hours of wakefulness and a low one at night; when they change to night work, the pattern will only gradually go back to match the new routine and the speed with which it does so parallels, broadly speaking, the adaptation of the body as a whole, particularly in terms of performance. Therefore, by taking body temperature at intervals of two hours throughout the period of wakefulness it can be seen how quickly a person can adapt to a reversed routine, and this could be used as a basis for selection. So far, however, such a form of selection does not seem to have been applied in practice.74. By saying“The question is no mere academic one,”the author wants to say ______.A. many people like to change the cycle of sleeping and workingB. sleeping normally coincides with the hours of darknessC. automation calls for people to change their sleeping habitsD. changing people’s sleeping and working pattern is not easy75. The main problem of the round-the-clock working system lies in _______.A. the inconvenience caused by the automation to the workersB. the disturbance of changing the cycle too frequentlyC. the lack of working efficiency on night shiftsD. the difficulty finding a number of good night workers76. The best remedy for the disorders among the alternating working-time workers seems to be______.A. changing the round-the-clock working systemB. allowing the night-shift workers to sleep more efficientlyC. employing people who work on night shifts onlyD. making a more flexible working schedule for night workers77. Which of the following statements can conclude the passage?A. The change of body temperature as an indication of a worker’s performance.B. The possible solutions to the problems of the round-the- clock working system.C. Easy ways to adapt the body temperature to the changes of the night shifts.D. Less disturbance to those who alternate day and night shifts at a longer interval.Section CDirections: Read the passage carefully. Then answer the questions or complete the statements in the fewest possible words.The results of the research, by the name of Longevity Project were released recently, throwing new light on what we can do to live longer. Based on the new information and modern statistics to study participants gathered across eight years, Dr. Howard Friedman exposes the secret to achieving good health and a long life. It was found that worry-free characters, far from being longevity-friendly as traditional wisdom assumed, died younger than the types interpreted as calm and easy-going. There is a connection between happiness and longevity, but the elements of happiness are not unlimited leisure, positivity and absence of stress. In fact, the opposite maybe more contributive. Longevity is far more than genetics, diet, or exercise. It is closely connected with emotions. Staying married happily is the magic key to a long life, especially if you are a woman.Another factor is our attitude towards health. We assume that modern medical advantages can deliver us from the consequence of our unhealthy act and see no reason to change our careless gestures towards ageing as the years fly by until something, sometimes the terrible disease, wakes us up. But a positive by-product of age blindness is the appetite for work, which remains strong and may even sharpen as we seek ways to keep death in a distance. And the state of being at work —working the hardest—would appear to enhance the prospect for a longest life.As for whether economic conditions determine how we live and for how long, whose effect on life expectancy is not so evident on current technical level, the study detects some differences in health conditions that at first glance may be caused by the gap that does exercise its influence, but mainly on a person’s self judgment.On the current stage, one thing can be sure. Various factors work in determining how long we live. Only some of these can be somewhat influenced at a personal level which makes it even more important to know what those facts are, what measure can be taken to extend life expectancy within our power.(Note: Answer the questions or complete the statements in NO MORE THAN TEN WORDS each.)78. Contrary to the traditional belief, longevity belongs to those who are ____________________.79. What is the relationship between working and longevity according to the passage?80. In health conditions, ______________ rather than ____________ determines how long we live.81. Why should we find out factors that can be influenced at a personal level?I. TranslationDirections: Translate the following sentences into English, using the words given in the brackets.1. 很年轻,但知道如何去处理这件事。