高二英语的寒假作业答案
篇一:高二英语寒假作业答案
(一)答案:1. brought --- bring 2. part ---parts 3. or – and
4. at 去掉 5. study 后加the 6. that --- what 7. song—songs
8. will 后加be 9. other –-- others 10. it –- them
(二)1. and 去掉 2 have – had 3. into – in 4. something – anything
5. is – was 6. meals 前加for 7. happening – happen
8. why – how 9 in-for 10. book – books
(三)答案:1.taken - spent 2. a 前加as 3. excited – excitedly 4. flew –
flies 5. day 去掉 6. At – In 7. In the evening 8. hardly – hard 9. class – classes 10. for 后加 a
(四)答案:1. much – very 2.nowhere-everywhere 3. people 前加of
4. to 后加the 5. that – what 6. but – however 7. done – made
8. one – it 9. in – on 10. more 去掉
(五)答案:1. in 去掉 2. makes – made 3. darkness – dark
4. the – a 5. cloth--clothes 6. this – that 7. beggar – beggar’s
8. saying – say 9. While – When 10. What – How
(六)答案:1. for – to 2. woman – women 3. fewer – less
4. change – changed 5. women 后加 who 6.want – wanted
7. doesn’t --didn’t 8. been去掉 9. either – too10. the 去掉
(七)答案:1. arrived 后加in2. a – the3. for 去掉
4. understand 后加me 5. time – times6. either – neither 7.her--his
8. it – that 9. anything – something 10. by – in
(八)答案:1. spending- spend 2. was 去掉 3.late – later
4. by – in 或a 去掉 5. on – in 6. was 去掉7. water 后加to
8. to 后加the 9. clothing – clothes 10. surprising – surprised
(九)答案:1. lesson – lessons 2. as – like 3. find – found 4. it – them 5.
such – too (改 so不对) 6.shouted – shout 7.everyone--everyone’s
8. the 前加of 9. with – of 或 full – filled 10. was
(十)答案:1. have 去掉 2 works – work 3. learn – learning
4. because – that 5. interesting – interest 6. and – but 7. will 后加be
8. Beside – Besides 9. and 去掉 10. there 前加where
作业一:短文改错
(一)答案:1. brought --- bring 2. part ---parts 3. or – and
4. at 去掉 5. study 后加the 6. that --- what 7. song—songs
8. will 后加be 9. other –-- others 10. it –- them
(二)答案:1. and 去掉 2 have – had 3. into – in
4. something – anything 5. is – was
6. meals 前加for 7. happening – happen
8. why – how 9 in-for 10. book – books
(三)答案:1.taken - spent 2. a 前加as 3. excited – excitedly 4. flew –
flies 5. day 去掉 6. At – In 7. In the evening 8. hardly – hard 9. class – classes 10. for 后加 a
(四)答案:1. much – very 2.nowhere-everywhere
3. people 前加of 4. to 后加the 5. that – what
6. but – however 7. done – made 8. one – it
9. in – on 10. more 去掉
(五)答案:1. in 去掉 2. makes – made 3. darkness – dark
4. the – a 5. cloth--clothes 6. this – that 7. beggar – beggar’s
8. saying – say 9. While – When 10. What – How
(六)答案:1. for – to 2. woman – women 3. fewer – less
4. change – changed 5. women 后加 who 6.want – wanted
7. doesn’t --didn’t 8. been去掉 9. either – too10. the 去掉
(七)答案:1. arrived 后加in2. a – the3. for 去掉
4. understand 后加me 5. time – times6. either – neither 7.her--his
8. it – that 9. anything – something 10. by – in
(八)答案:1. spending- spend 2. was 去掉 3.late – later
4. by – in 或a 去掉 5. on – in 6. was 去掉7. water 后加to
8. to 后加the 9. clothing – clothes 10. surprising – surprised
(九)答案:1. lesson – lessons 2. as – like 3. find – found 4. it – them 5.
such – too (改 so不对) 6.shouted – shout 7.everyone--everyone’s
8. the 前加of 9. with – of 或 full – filled 10. was
(十)答案:1. have 去掉 2 works – work 3. learn – learning
4. because – that 5. interesting – interest
6. and – but 7. will 后加be 8. Beside – Besides
9. and 去掉 10. there 前加where
作业二:综合语法填空题
(1)答案:1. that2. healthiest 3. contains4. in
5. about 6. of 7. a8. Westerners 9.teeth 10. illnesses
(2)答案; 1. Because 2. that 3. letting 4 . Successful5. like 6. where 7. setting
8. Unsuccessful9. they 10. the
(3)答案; 1. nineteenth 2. where3. or 4. tells
5. The 6. other 7. themselves 8. thankful 9. forward10. living
(4)答案: 1. was honored 2. married 3. Where 4. lawyer
5. surprisedly 6. organization 7. independence
8. including 9. However 10.Unfortunately
(5)答案:1.factor 2.except 3.for 4. Environmental 5.be solved
(6)答案:1. had been 2. finding3. recently. 4 employment
5.Since6 without7. Therefore/Thus
8 .an9.Surprisingly 10. So
(7)答案: 1. that2. faster 3. or (else) / otherwise4. wakes5. flashing 6. death 7. both8. running
9. whether 10. hesitation
(8)答案: 61. being 62. and63. disappointed 64. to65. caught
66. to stop 67. riding 68.did 69. me/mine70. Suddenly
作业三:完型填空
(一) 答案:1~5 ADCDA 6~10 BCAAB11~15 CCCAD
(二)答案; 1~5 BADCA 6~10 DCDAB11~15 BCDAC
(三)
(三)答案:1~5 DBCDA 6~10 BCACB 11~15 DCDAA 16~20 BCABC
(四)答案:1~5 DBCBA 6~10 CDABC 11~15 CACBD 16~20 AAABD
(五)答案; 1~5 BDABC 6~10 BDBAC 11~15 BACDD 16~20 BCAAD
作业四:阅读理解
(1) 1D2 C3 B4 B5 D
(2)1C2 C3 A4 C5 B
(3) 1C2 A3 A4 B5 C
(4) 1D2 B3 D4 A5 C
(5) 1C2 A3 D4 D5 B
(6) 1D2 B3 C4 A5 C
作业五(答案略)
16~20 BABCD 16~20 CDACB
篇二:九年级数学赢在假期答案
">解答题
1. (2012辽宁鞍山8分)如图,某社区有一矩形广场ABCD,在边AB上的M点和边BC上的N点分别有一棵景观树,为了进一步美化环境,社区欲在BD上(点B除外)选一点P再种一棵景观树,使得∠MPN=90°,请在图中利用尺规作图画出点P的位置(要求:不写已知、求证、作法和结论,保留作图痕迹).
【答案】解:如图所示:
点P即为所求。
【考点】作图(应用与设计作图),线段垂直平分线的性质,圆周角定理。
【分析】首先连接MN,作MN的垂直平分线交MN于O,以O为圆心, MN长为半径画圆,交BD于点P,点P即为所求.
2. (2012辽宁丹东8分)已知:△ABC在坐标平面内,三个顶点的坐标分别为A(0,3),B(3,4),C(2,2).(正方形网格中, 每个小正方形的边长是1个单位长度)
(1)画出△ABC向下平移4个单位得到的△A1B1C1,并直接写出C1点的坐标;
(2)以点B为位似中心,在网格中画出△A2BC2,使△A2BC2与△ABC位似,且位似比为2︰1,并直接写出C2点的坐标及△A2BC2的面积.
【答案】解:(1)如图,△A1B1C1即为所求,C1(2,-2)。
(2)如图,△A2BC2即为所求,C2(1,0),△A2BC2的面积:10
【考点】作图(平移和位似变换)。
【分析】(1)根据网格结构,找出点A、B、C向下平移4个单位的对应点A1、B1、C1的位置,然后顺次连接即可,再根据平面直角坐标系写出点C1的坐标。
(2)延长BA到A2,使AA2=AB,延长BC到C2,使CC2=BC,然后连接A2C2即可,再根据平面直角坐标系写出C2点的坐标,利用△A2BC2所在的矩形的面积减去四周三个小直角三角形的面积,列式计算即可得解:
△A2BC2的面积=6×4- ×2×6- ×2×4- ×2×4=10。
3. (2012辽宁阜新10分)如图,在由边长为1的小正方形组成的网格中,三角形ABC的顶点均落在格点上.
(1)将△ABC绕点O顺时针旋转90°后,得到△A1B1C1.在网格中画出△A1B1C1;
(2)求线段OA在旋转过程中扫过的图形面积;(结果保留π)
(3)求∠BCC1的正切值.
【答案】解:(1)画图如下:
(2)由勾股定理得, ,
线段OA在旋转过程中扫过的图形为以OA为半径, 为圆心角的扇形,∴ 。
答:线段OA在旋转过程中扫过的图形面积为 .
(3)在Rt 中, 。
答:∠BCC1的正切值是 。
【考点】网格问题,旋转变换作图,勾股定理,扇形面积,锐角三角函数的定义。
【分析】(1)根据图形旋转的性质画出旋转后的图形即可。
(2)先根据勾股定理求出OA的长,再根据线段OA在旋转过程中扫过的图形为以OA为半径,∠AOA1为圆心角的扇形,利用扇形的面积公式得出结论即可。
(3)直接根据锐角三角函数的定义即可得出结论。
4. (2012辽宁锦州8分)如图所示,图中的小方格都是边长为1的正方形,△ABC与△A'B'C'是以
点O为位似中心的位似图形,它们的顶点都在小正方形的顶点上.
(1)画出位似中心点O;
(2)直接写出△ABC与△A′B'C'的位似比;
(3)以位似中心O为坐标原点,以格线所在直线为坐标轴建立平面直角坐标系,画出△A'B'C'关于点 O中心对称的△A″B″C″,并直接写出△A″B″C″各顶点的坐标.
【答案】解:(1)图中点O为所求:
(2)△ABC与△A'B'C'的位似比等于2:1 。
(3)△A''B''C''为所求,A''(6,0); B''(3,-2); C''(4,-4)。
【考点】作图(位似和中心对称变换),平面直角坐标系和点的坐标。
【分析】(1)对应点连线的`交点即为位似中心点。
(2)根据网格中的距离即可写出△ABC与△A′B'C'的位似比。
(3)作出△A'B'C'关于点 O中心对称的△A″B″C″,根据平面直角坐标系中的位置写出△A″B″C″各顶点的坐标。
5. (2012辽宁营口8分)如图,在平面直角坐标系中,△ABC的三个顶点坐标分别为A( , )、 B( ,1)、C(0, ).
(1) 点B关于坐标原点O对称的点的坐标为__________;
(2) 将△ABC绕点C顺时针旋转 ,画出旋转后得到的△A1B1C;
(3) 求过点B1的反比例函数的解析式.
【答案】解:(1)(1,﹣1)。
(2)作图如下:
(3)由(2)得B1点坐标为(3,﹣1),
设过点B1的反比例函数解析式为 ,
把点B1 (3,﹣1) 代入 中,得 =﹣3 。
∴反比例函数解析式为 。
【考点】作图(旋转变换),关于原点对称的点的坐标,待定系数法,曲线上点的坐标与方程的关系。
【分析】(1)根据两个点关于原点对称时,它们的坐标符号相反,可得出答案。
(2)分别找到各点的对应点,然后顺次连接即可得出旋转后得到的△A1B1C。
(3)根据(2)所得的图形,可得出点B1的坐标,然后利用待定系数发可求出过点B1的反比例函数的解析式。
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