环县二中08-09年度高二数学期中考试
一 选择题（每小题5分，共14小题）
1下列说法中正确的是（ ）
A 圆和平行四边形都可以表示平面.
B 平面就是平行四边形.
C 平静的太平洋就是平面.
D 任何一个平面图形都是一个平面.
2 下列命题中其中假命题是（ ）
A 如果一条直线和两条平行直线都相交，那么这三条直线必共面.
B依次首尾相接的四条线段必共面.
C 三条直线两两相交，则这三条直线能共面.
D 空间中任意三点必共面.
3 异面直线指（ ）
A 不相交的两条直线.
B 不同在任何一个平面内的两条直线.
C 一个平面内的直线和不在这个平面内的直线.
D 分别位于两个平面内的直线.
4 点
是
所在的平面
外的一点，若点到三边的距离相等，则点在平面内的正射影是（ ）
A 外心 B
垂心 C
内心 D
重心
5 正三棱锥
的侧棱与底面边长相等，如果
,
分别是
,
的中点，那么异面直线
,
所成的角为（ ）
A 
B
C
D
6 有4个学生和3名教师排成一行照相，规定两端不排教师，那么排法的种数是（ ）
A
B
C
D 
7 已知向量
,
是两个非零向量，则
∥
的充要条件是（ ）
A 
B 
C 存在非零实数
使+
=
. D存在实数使+=.
8 的边
在平面内且
，平面
与平面所成的二面角为
（为锐角），
于
点，则下列结论成立的是（ ）
A 
= 
B = 
C =
D =
9 在直三棱柱
中，底面是等腰直角三角形，斜边
，侧棱
，点D是
中点，那么截面
与底面
所成的二面角为（ ）
A B
C D 以上答案均不对
10 过球的一条半径中点，作垂直于该半径的截面，则所得截面的面积与球的表面积的比值为（ ）
A 
B 
C 
D 
11 边长为
的正方形
沿对角线
折成直二面角后
的长为（ ）
A B
C
D 
12 判断以下命题，其中真命题为（ ）
1正棱柱的侧面一定是正方形.2平行六面体一定是四棱柱.
3正棱锥的侧棱与底面多边形的边长一定相等.
4球心和不是大圆的截面圆心连线垂直于该截面.
A12 B
24 C
23 D 34
13 在中，
，
，
是
的中点且
平面，
，则点
到直线的距离为（ ）
A 
B
C
D
14 在正三棱柱中，已知
=1，点
在棱
上且
=1，则直线
与平面
所成角的正弦值为（ ）
A 
B
C
D 
二 填空题（每小题5分，共4小题）
15 若正方体外接球体积为
，那么正方体棱长等于 .
16 已知向量
，
，且
与
互相垂直，则等于
（用分数作答）.
17 若
，则
=
.
18 若平面四边形
所在的平面外有一点
,满足
=
,则
= （用具体的数字作答）.
注意：1 将选择题，填空题答案写在答题卡上.
2 考试结束将试卷的第4-7页上交.
环县二中08-09年度高二数学期中考试
答题卡
一 选择题（每小题5分，共14小题）
题号
1
2
3
4
5
6
7
答案
题号
8
9
10
11
12
13
14
答案
二 填空题（每小题5分，共4小题）
15
16
17
18
三 解答题（共4小题）
19 (8分)已知空间两点
，
求
的最小值和最大值。
20 （24分）如图，在棱长为2的正方体
中，，
，
分别为
，
，
的中点，
，
分别为侧面
，侧面
的中心。
（1）求证：
∥平面
.
（2）求证：
平面.
（3）求直线
与直线
所成角的余弦值.
（4）求点到平面
的距离.
21 （18分）如图，在四棱锥
中，底面
是矩形，侧棱
垂直于底面，，分别是
，
的中点.
（1） 求证：
⊥
.
（2） 求证：∥平面
.
（3） 若直线⊥平面
，求二面角
的大小.
22 （10分）如图，在棱长为1的正方体中，侧面
内有一动点到直线
与直线的距离相等.
（1）说明动点所在曲线的大致形状.
（2）在平面内建立适当的坐标系，求动点的轨迹方程.
（3）在（2）中所建立的平面直角坐标系中，动点所在曲
线的一条切线
过
中点，求该切线的方程.
试题详情
浙江省金华十校2009年4月高考模拟考试英语试题
本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分，共120分。考试时间120分钟。
第Ⅰ卷（选择题 共80分）
第一部分：英语知识运用（共两节, 满分30分）
第一节：单项填空（共20小题；每小题0.5分，满分10分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题纸上将该选项标号涂黑。
1. ―Will you go
home tomorrow evening?
―No, I am going to a lecture，or at least I am planning
.
A. so B.
to C.
it D.
that
2. We couldn’t eat in a restaurant because
of us had
money on us.
A. all, no B.
any，no C.
none, any D.
no one, any
3. She is one of the
workers who
praised yesterday.
A. woman，was B.
women，were C. woman，were D. women，was
4. Most people
prefer to travel by
train, because you can have a comfortable journey, but make sure you
get
fast one.
A. the；a B.
a; the C.
不填; the D.
不填; a
5. If you had been more careful，you
the traffic accident.
A. could have avoided B.
must have avoided
C.
could avoid D.
would avoid
6. She can’t help
the house because she’s busy making a cake.
A.
to clean B.
cleaning C.
cleaned D.
being cleaned
7. who
she was，she said she
was Mr. Johnson’s sister.
A.
Asking B.
When asked C.
Having asked D.
To be asked
8. Mary is
as Alice.
A. as lovely a girl B.
a girl as lovely
C.
a as lovely girl D.
as a lovely girl
9. 一Do you think
it wise of me to do everything for my child?
―No, that’s
you are mistaken.
A.
where B.
When C.
how D.
what
10. ―I always look
out when crossing the street.
一You’re right. You cannot be too
.
A.
nervous B.
careful C.
hurried D.
careless
11. They started off late and got to the airport with minutes to
.
A. spare B.
catch C.
1eave D.
make
12. My headache
me. I thought it was going away, but now it is getting even worse.
A. is killing B.
kills C.
killed D.
has killed
13. Tina knocked at the door for nearly ten minutes
her husband opened it.
A. when B.
before C.
until D.
while
14. Any application form
properly will not be accepted by the company.
A.
not filled B.
not having filled
C.
not filling D.
not being filled
15. Both teams are in good form，which should
a great game.
A. make up B. make out C.
make off D.
make for
16. We had tried everything，but it made little
.
A.
good B.
use C.
result D.
difference
17. It was 5：00 in the afternoon
they arrived at the hotel.
A. when B.
that C.
before D.
since
18. 一I’d like to
go to the movie with you，Dad.
一Sorry，my son，but only
grown―ups are
into the cinema.
A. required B. intended C.
admitted D.
supposed
19. 一Do you have
to leave now?
―I am very sorry，but I really
.
A. can’t B.
have C.
should D.
must
20. 一Would you
like some wine?
一I don’t drink wine as a rule，but I don’t mind a glass
.
A. all the time B. more or less C. at any time D.
once in a while
第二节 完型填空（共20小题；每小题1.5分，满分30分）
阅读下面短文，掌握其大意，然后从20―40各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题纸上将该选项标号涂黑。
Just home from work，Daddy stepped in the kitchen where
Mother and I were preparing supper. From the look on his face, we knew
something was 21 him.
“Mr. Roth
is worse, ” he said. “The doctor
says it’s only a 22 of time now. The old man call 23
his pain, but not the long hours he has to spend alone. His eyes are 24
bad that he can’t read，and he doesn’t get much 25
. He keeps begging for a big dog to be his companion， 26 he can reach out and touch as he sits in
his wheelchair in the sun. ”
“Why don’t
they 27 him a dog?” I asked.
“Honey，with Mr. Roth in the hospital so
much of time. there are a lot of
28 . There isn’t
enough money.”
“They could
go to the animal shelter and get one. ”I 29
.
“Yes，” Daddy said. “I suppose they
could. But it has to be a 30
dog，which they
can trust
to be gentle. Not all big dogs are. ”
After
supper，I went 31
my big German shepherd(牧羊犬)，Dan，was usually dozing. He jumped up
and ran to meet me 32 he always did when I came into
sight. There were no other 12一year―old girls in
our neighborhood，so I 33 Dan for companionship. When I
rode my bicycle，he ran behind
me；when I roller―skated on the sidewalk, he followed
behind. It had been
that way since Daddy 34 him home four years before.
Now, I
couldn’t 35 Daddy’s words in the kitchen.
I threw my arms 36 Dan’s neck
and buried my face in his stiff hair.
“I love you，” I whispered to him. “I’d be 37
without you，but…oh，Dan，I know what I should do， 38
I don’t want to do it. ”
I thought about Mr.
Roth. He was old，sick and
almost 39 . It seemed to me that he was just
about out of blessings. I 40 quickly. I knew what I had to do.
I went to my father and
said, “Mr. Roth can borrow Dan. ”Tears started down my face.
21. A.
pleasing B.
bothering C. puzzling D.
frightening
22. A.
sort B.
lot C.
waste D.
matter
23. A.
consider B.
suffer C.
bear D.
cure
24. A. so B.
too C.
very D.
also
25. A.
1uck B.
company C.
wealth D.
business
26. A.
someone B.
this C.
one D.
that
27. A. buy B.
offer C.
supply D.
promise
28. A.
supplies B.
operations C. expenses D.
visits
29. A.
replied B.
asked C.
explained D.
suggested
30. A.
fierce B.
special C.
useful D.
brave
31. A.
which B.
what C.
when D.
where
32. A.
once B.
though C.
as D.
if
33. A. came
across B. thought of C. depended on D. felt like
34. A.
brought B.
trained C.
drove D.
delivered
35. A.
realize B.
understand C. forget D.
appreciate
36. A.
through B.
past C.
over D.
around
37. A.
lost B.
surprising C. aggressive D.
fearful
38. A. so B.
and C.
or D.
but
39. A.
crazy B.
blind C.
lonely D.
painful
40. A. ran
up B.
got up C.
woke up D.
picked up
第二部分：阅读理解（第一节20小题，第二节5小题；每题2分，满分50分）
第一节 阅读下列短文，从每题所给的上个选项（A、B、C、D）中，选出最佳选项，并在答题纸上将该选项涂号涂黑。
A
As you grow rapidly
through your teenage years, you will experience a lot of changes. The changes
may seem difficult and they may seem to happen quickly. Don’t panic! You will
deal successfully with them! You are a young adult now!
With more
responsibility, you will find more freedom to make your own choices. This is a
time to be well informed about your choices so that you can make healthy
balanced decisions that will help shape your future. You may already know your
career path or you may have no idea at all what you want to do. Both situations
are fine! Work hard and the right opportunity will present itself to you.
20090506 It is also perfectly
natural in this time for you to spend more time with your friends than your
family. Choose your friends wisely. A true friend will stand by you no matter
what happens. This period is a
part of the life cycle. There are some people who will be with you throughout
life’s journey and there will be some people with whom you part and go
separate ways. Leaving school can be hard. The reality is that you may not ever
see all of your classmates again. You are a young
adult. It is your life. No one can live it for you. The choices that you make from
now on will be your choices. So making the right choices will be important to
you. Life is for living. Enjoy your life wisely! 41. The best
title for this passage would be
. A. The
Choices in Life B.
The Key to Success C. Say
Goodbye to the Past D.
Becoming a Young Adult 42. Who do the
underlined words “some people” (Paragraph 5) probably refer to? A. your
parents B.
your classmates C.
true friends D.
your relatives 43. The author
thinks teenage years are
. A. a period
of complete freedom B. too hard
for young people to get through C. an
important time for the young to make the right choices D. a very
important period for young students to leave their parents 44. Who is the
passage mainly for? A.
Teenagers B.
Teachers C.
Young parents D.
Adults B Let us begin by
saying what does not cause our dreams. Our dreams do not come from “another
world”. They are not messages from outside source. They are not a look into the
future, either. All our dreams have
something to do with our feelings, fear, longings, wishes, needs and memories.
If a person is hungry, or tired, or cold his dreams may include a feeling of
this kind. If the covers on your body, such as a quilt or a blanket have
slipped off your bed, you may dream that you are sleeping on the ice or snow.
The material for the dream you will have tonight is likely to come from the
experiences you have today. So the subject of
your dream usually comes from something that has effect on you while you are
sleeping (feeling of cold, a noise, a discomfort, etc)and it may also use your
past experiences and the wishes and interests you have now. This is why very
young children are likely to d ream of fairies, older children of school
examinations, hungry people of food, home-sick soldiers of their families, and
prisoners of freedom. To show you how that
is happening while you are asleep and how your wishes and needs can all be
joined together in a dream, here is a story of an experiment. A man was asleep
and the back of his hand was rubbed with absorbent cotton. He would dream that
he was in a hospital and his charming girl friend was visiting him, sitting on
the bed and feeling his hands! There are some
scientists who have a special study of why we dream, what we dream and what
those dreams mean. Their explanation of dreams, though a bit reasonable, is not
accepted by everyone, but it offers an interesting way of dealing with the
problem. They believe that dreams are mostly expressions of wishes that did not
come true. In other words, a dream is a way of having your wishes carried out. 45. From the
passage we know that our dreams___ _ . A. are
imagination of our daily life B. are man’s
curious look into the future C. have
nothing to do with our feelings D. are to
some degree connected with our feelings 46. Older
children often dream of examinations probably because___ _ . A. they are
interested in exams B. they are
often worried about their studies C. they
hope for better life D. they
show much interest in their studies 47. According to the writer, the explanation
of dreams that some scientists made___ _ . A. is
considered interesting, but meaningless. B. gives a
good answer to the question why we dream. C. has some
value, though not fully convincing. D. has been
proved by the findings of their studies. 48. What is the
best title for this passage? A. Why
people Dream B.
New Findings about Dreams C. Dream
Makes Hopes D.
What Dreams Mean
Rock House Museum. Take a journey through history with
a visit to the exciting museum and historic sites of Wytheville. The Rock House
Museum offers glimpses into daily life in the 19th century. The museum is part
of the 50 structures featured in Wytheville’s Historic Walking Tour.
540/223-3330.
Natural Bridge of
Virginia, one of the Seven Natural Wonders of the World. Caverns of Natural Bridge, guided tours of underground
wonders; Natural Bridge Inn & Conference Center, Indoor Heated Pool, largest Gift & Souvenir Shop in the East. Information 800/533-1410. 
Grand Caverns is America’s Oldest Showcave. Beautiful and massive
formations. Union troops visited the caverns. Thomas Jefferson visited ? you should too! Open weekends in
March, daily April ～ October, 9 am ～ 5 pm. Hour tours leave every 30 minutes. 703/249-5705. The News museum
museum of news. Visitors can be reporters or television newscasters,
see today’s news as it happens on a block-long video news wall, and be taken behind the scenes to see how news is made. The news museum is open Wednesday through Sunday from 10 a.m. ～ 5 p.m. 888/NEWSEUM. www. News museum.
Org
Virginia Beach
offers 11,000 hotel / motel rooms, plus cottages and campgrounds. Enjoy miles of clean beaches and a variety of family attractions. Fine restaurants, various shopping areas, exciting nightlife, and special events are offered throughout the year. 800/822-3224. 49. What is the
purpose of this passage? A. To
introduce Virginia to tourists. B. To
encourage people to settle in Virginia. C. To
introduce historic sites in Virginia. D. To give
people a general description of Virginia 50. What way is
the News museum different from Rock House Museum? A. It is
larger.
B.
It is more exciting. C. Visitors
can act in it.
D.
Visitors can see more in it. 51. Which of
the following places is not open in the winter months? A. Natural
Bridge of Virginia B.
Grand Caverns C. Virginia
Beach D.
Kenmore Plantation & Gardens D Scott Langteau has
this message fro kids: Spend less time playing video games. It’s a message that
many a mom and dad have tried to impress upon many a youngster (and some
not-so-youngsters) who spend perhaps a bit too much time with game controllers
in hand. But the 40-year-old
Langteau isn’t a parent. He’s a experienced at video game ― one who played
producer on three “Medal of Honor” games and co-founded his own game
development company. Langteau has just
published a children’s book called “Sofa Boy,” which tells the story of a kid
who spends too much time sitting on the couch with controller held in hand and
the rather terrible consequences that follow. It’s a fairy tale
plucked straight from Langteau's own experiences as a lad with a fondness for
video games and his own bouts with a bit of game addiction. But first, Langteau
would like make one thing clear: “I’m not saying that you shouldn’t play video
games. I think video games are great, I think they do great things for kids.
Instead, Langteau says his book is all about a little something called
“moderation.（克制）” “It’s about being well rounded,” he says. “Just like with anything else, we all need to make sure
that there’s a variety in what we do.” Video gamers can be
a rather bad-tempered when it comes to accepting criticism about their favorite
entertainment. And understandably so. After all, most people who go around talking
about the dangers of playing video games tend to be outsiders ― people who
don’t play video games and certainly don’t understand that they can be a
valuable and healthy form of entertainment. But Langteau and
“Sofa Boy” seem to be in a unique position to deliver a message of gaming
moderation that the young game-savvy masses might actually listen to. After
all, this is a man who understands what it means to be a kid with a passion for
games. His early experience has taught him a lesson. 52. Scott
Langteau published “Sofa Boy” to
. A.
share his great skills on games B.
warn kids against game addiction C.
tell about his fairy tale as a kid D.
deliver a message for games 53. Which of
the following is TRUE of the book “Sofa Boy”? A.
The book tells of the writer’s own story. B.
The book describes an experienced garner. C.
The boy in the book wins a medal for games. D.
The boy in the book is not an addict on games. 54. We can
learn from the passage that
. A.
Langteau advises the young to play games within limits B.
Langteau advises the young not to play games C.
playing video games ruins the future of kids D.
playing video games is of no benefit to kids 55. By saying “It’s
about being well rounded” Langteau thinks
.
20090506 C.
games should be viewed from all sides D.
gamers are to blame for their behaviors 56. What topic
will be discussed in the following paragraph? A.
His idea to create “Sofa Boy”. B.
His great achievement in games as a kid. C.
His hard times to set up his game company. D.
His enthusiasm for games when he was a small boy. E Do this and you’ll be
welcome anywhere. Why read this book
to find out how to win friends? Why not study the technique of the greatest
winner of friends the word has ever known? Who is he? You may meet him coming
down the street. When you get within ten feet of him，he will begin to wag its tail. If
you stop and pat him，he’ll jump out of his skin to show you how much he likes you. And
you know this show of love. There is no secret motives：he doesn’t want to sell you any
real estate，and he doesn’t
want to be your husband or wife. Did you ever stop to
think that a dog is the only animal that doesn’t have to work for a living? A
hen has to lay eggs；a cow has to give milk；and a canary has to sing. But a dog makes a living by giving you
nothing but love. When I was five
years old，my father
bought a little yellow―haired young dog for fifty cents. He was the light and joy of my
childhood. Every afternoon around four thirty，he would sit in the front yard with his beautiful eyes staring at
the road, and as soon as he heard my voice or saw me through the brush, he was
off like a shot, racing breathlessly up the hill to greet me with leaps of joy
and barks of cheer. Tippy was my good companion
for five years. Then one night ― I shall never forget it―he was killed within ten feet of my head, killed by lightning . Tippy’
s death was the tragedy event of my childhood. You never read a
book on psychology, Tippy. You didn’t need to. You knew that one can make more
friends in months by being really interested
in other people than one can in two years by trying to get other people interested
in him. Let me repeat that .you can make more friends in two months by becoming
interested in other people than you can in two years by trying to get other
people interested in you. 57. When the
writer writes “the greatest winner of friends the world has ever known”, he
refers to
. A.
himself B.
Tippy C.
a pet dog D.
a psychology book 58. The writer
takes Tippy as a good example to
. A.
explain how to win love from others B.
show how he liked his friend C.
tell the readers why they should read the book D.
show us how a pet dog should behave 59. According
to the writer，to be welcome
anywhere，you must
. A.
know much about others’ feelings B. do everything without secret motives C.
satisfy the needs of different people D.
show care and love for others 60. Generally
speaking，in what tone
is the passage written? A.
Light B.
Serious C.
Sad D.
Disappointed 第二节：第61―65题是五个关于杂志的评论，A至F是六个关于杂志的介绍，请分别阅读下面的信息，从A至F中选出与61―65的评论相匹配的杂志，并在答题纸上将该选项标号涂黑。选项中有一项是多余选项。 61. Perfect for
my 3一year―old and my 6一year―old children. this is a magazine that doesn’t sit around unread The
activities are fun and stories are wonderful. We play the games, make the crafts，and read the stories over and over again until the next issue finds
its way to our home. I love this
magazine ! 62. We are
extreme sports fans，and this magazine provides us with the in―depth coverage we desire. From football to
basketball，baseball to
NASCAR，we’re able to stay updated on all of
our favorite sports and teams. 63. I love this
magazine for its information on healthy life and healthy recipes. It tells you
what kinds of food to eat and what to avoid，and also provides the latest information on yoga and stress relief.
A great guide to healthy and natural life. 64. I’ve been a
car enthusiast as long as I can remember, and this magazine has always been
there for me! I love the coverage
of races，the interviews
with drivers，and product
listings.This is must―have
magazine for enthusiasts everywhere ! 65. This
magazine provides the basic information a home―owner wants. It’s a journal for the home, and the things we live by；besides all that，it is also concise(简练的)and well―priced. What could be better? A Car & Driver：Covering every type of automobiles
on the road, Car & Driver magazine road-tests every new model，then describes its performance in
an objective yet entertaining way to the reader. Each issue has news about the
latest technology，and
developments in the industry and in politics that affect the automobile
business. Also included are articles on motor sports and important
personalities. Car & Driver magazine contains information on both foreign
and domestic vehicles, With the emphasis on special vehicles. B Consumer Reports：This is a report on products and
services designed to enable readers to obtain the maximum value. Product areas
include. automobiles，electronic equipment，household products，food，personal
finance，career
planning, home ownership，health and fitness，money and others. C Sporting News：There are many different sports
magazines out there，but none of them can change the way you see the games like Sporting
News magazine provides you with 360―degree sports coverage，from players to fans News. Sporting from management to owners. This
magazine brings you all the facts，opinions and updated information you need. Whether you are casually
following your favorite team or seeking to dominate you fantasy league,
Sporting News is the authority on professional sports D Your Big Backyard：Your Big Backyard is a great gift
for a special pre-schooler. This unique magazine combines close-up pictures
with simple text to get young children to read. Each issue sparks children’s
natural curiosity as it introduces them to the wonderful world of nature with
claming photos of baby animals , and with read ? to ? me stories, poems,
riddles, and games. magazine
combines close E Better Homes &
Gardens：BetterHomes
& Gardens is the classic magazine for those whose lives are centered to
their homes. Each issue features 100 creative solutions for your home，as well as ideas for decorating，cooking，gardening，building，remodeling，crafts and more. Here you’ll find all
the dreaming, planning, and how ? to tips to get perfect results for your home.
It’s for people who are interested in turning their home, cooking, and gardening
inspirations into realities. F Body & Soul:
Every issue of Body & Soul inspires you to live a healthy, balanced and
fulfilling life. With Body & Soul you’ll learn more about health, including
how to safely and effectively combine the best of Western medicine and natural
healing in order to stay healthy. Every topic in Body & Soul is presented
in a balanced, overall way to help you find a more connected, joyful way of
life. Body & Soul magazine brings you a balanced life in a busy world. 第Ⅱ卷（非选择题，共40分） 第三部分：写作（共二节，满分40分） 第一节 短文改错（满分10分） 假如英语课上老师要求同学们交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，要求你在错误的地方增加、删除或修改某个单词。 增加：在缺词处加一个漏字符号（^），在其下面写出该加的词。 删除：把多余的词用斜线（\）划掉。 修改：在错的词下划一横线，在该词下面写上修改后的词。 注意： 1. 每处错误及其修改均仅限一词。 2. 只允许修改10处，多者（从第11处起）不坟分。
Now I don’t watch televisions, but a few years ago I watch it every
night. In those days I was not a bit tired after a day’s work, so watch TV became my favorite
pastime. Unfortunate, there were too many people among my family. Some wanted to see one programme
while others preferred other. I was happy with any programme but the others spent a lot
time arguing with one after another and there was no way of settling the matter except by
selling the set. Now someone at home reads instead. 第二节 书面表达（满分30分） 作为一名中学生，和老师建立良好的师生关系是必要的。请你围绕下面的两个话题写一篇英语短文，谈谈自己的看法。 1. 你认为良好的师生关系应该是怎样的？ 2. 如何才能建立这种关系？ 注意： 1. 可以使用一些具体的实例支持你的论点； 2. 词数100―120左右，开头已为你写好，不计入总词数。 As a middle school
student, it is necessary to build a good relationship with our teachers
试题详情
山西师范大学附中2009届高三2月月考 政治试题 试题详情
四川省遂宁市高中2009届第三次诊断性考试 理科综合能力测试 本试卷分第I卷（选择题）和第Ⅱ卷（非选择题）两部分，第I卷1至6页，第Ⅱ卷7至16页。全卷满分300分，考试时间150分钟。考试结束后，将试题Ⅱ卷和答题卡一并交回。 第I卷 注意事项： 1．答第I卷前，考生务必将自己的姓名、考号、考试科目用铅笔涂写在答题卡上； 2．每小题选出答案后，用铅笔把答题卡上对应的答案标号涂黑，如需改动，用橡皮擦擦干净后，再选涂其它答案，不能答在试卷上； 3．本卷共21小题，每小题6分，共126分； 可能用到的相对原子质量；     试题详情
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棱台的体积公式：
h表示棱台的高
棱台的体积公式：
h表示棱台的高
