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題目內容
如圖鈍角△ABC,請畫出:
(1)AB邊上的高CD;
(2)BC邊上的中線AE;
(3)∠BAC的角平分線AF;
(4)寫出圖中相等的線段;
(5)寫出圖中面積相等的三角形.
試題答案
考點:作圖—復雜作圖
專題余咐:
分析:(1)根據延長BA,過C作CD⊥AB即可;
(2)找出BC的中點,連接AE即可;
(3)作∠BAF=∠CAF;
(4)根據中線定義可得BE=EC;
(5)根據三角形的中線平分三角形的面豎襲純積可得答案.
解答:解:(1)(2)(3)如圖所示:
(4)AE=EC;
(5)△ABE,△AEC的面積相等.
點評:此題主要考查了復雜作圖,關鍵是掌握三角形的高、中線,角平分線定義.
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精英家教網
是的,根據相關信息顯示,考研老師的課可分為一類和二類,一類是面授缺判班,一般是由專業老師進行講解,重點在學習基礎知型扮攜識和復習強化卜伏知識,主要內容包括政治、經濟、外語等整體復習,以及專業的綜合練習。二類課程是網上復習課,通過在線學習以及后臺,完成復習課程的學習任務。
小氏慶考實戰英語測試試卷
一、根據句意,將所缺單詞補充完整,首字母已給出。
1. ----Be quiet please. The boy is s___________.
----Oh, sorry. We won't shout from now on.
2. ----What date is it today?
----It's the s_______ of August. We can enjoy Olympics in six days.
3.----Look! I have a new skirt today.
----How cute you look! Your skirt is more beautiful than m__________.
4.----What do you know about Yao Ming?
----He is one of the tallest basketball p_________ in the world.
5.----I can't learn English well.
----You don't read enough. You should do m_________ reading.
6.----Was he born in S___________?
----Yes. It's the ninth month of the year. And he likes autumn a lot.
7.----Sue's father is a policeman. How a ____________ her mother?
----She is a nurse. She works in that hospital.
8.----Tom is so glad today. He is talking with others h__________ all the time.
----He must have something great. Let's go and ask about it.
9.----What are you going to do this Sunday?
----I am going s________ with my friends. It must be fun to walk in shopping malls.
殲豎握10.----I am very t_________. I can't walk any more.
----Let me help you.
二、選擇填空:
纖扮( ) 1. More than ________ VIPs will come to Beijing for the Olympic Games.
A. eight hundreds B. eight hundred C. eight hundred of D. eight hundreds of
( ) 2. I can see Eddie _________ his computer _______ the window.
A. at; on B. on; at C. at; through D. on; by
( ) 3. My bike is not here. Will you _________ yours _________me?
A. borrow; to B. borrow; from C.lend; from D. lend; to
( ) 4. Do you know___________?
A. who he is B. who is he C. what he like D. what does he like
( ) 5. There are about six bridges over Yangtze River in Jiangsu. One is for trains, __________ are all for cars and tricks.
A. the other B. the others C. another five D. Others
( ) 6. ----I am very sorry but I can't help you now.
----_________.
A. That's right B. You're welcome C. Thank you all the same D. How sorry I am.
( ) 7. _______ weather we are having these days!
A. What a bad B. How nice a C. How nice D. What bad
( ) 8. Mr Green is a new teacher at our school. His job is __________.
A. teach our English B. teaching us English
C. teach us English D. to teach our English
( ) 9. Stop ________. The teacher is coming for the new class.
A. talk B. to talk C. talking D. Talks
( ) 10. I didn't think she had _______ more CDs __________ Mike.
A. so;as B. much; than C. as; as D. many; than
( ) 11. We all like him because he says __________ but does much.
A. little B. a little C. much D. Many
( ) 12. _______ is the most interesting of _________.
A. Unit Three; Book Three B. The Unit Three; the Book Three
C. Third Unit; Third Book D. The Third Unit; the Three Book
三、用所給動詞的適當形式填空:
1. Jim is good at P.E. He gets up early and __________ (do) some sports every morning.
2. ----_________ Timmy __________(visit) his friends next Sunday? ----Yes, he is.
3. Millie __________(go) the park by herself and had a good time there.
4. The workers at the repair shop say our car needs ___________(mend).
5. I have no homework this afternoon. How about _________(fly) kites in the park?
6. Many students are in the room now. They ___________(watch) Kungfu Panda on TV.
四、完形填空:
Do you like to shop on the Internet? Things online are very cheap. I often get ____1____ online. Let me tell you how to buy one when i want to know something about a book. Firstly, I write an e-mail to the online shop. Then they will ____2___ me some pictures of the book. I think this is very helpful.
Online shops are _____3____ open. I can do shopping even at midnight if I want to . Real shops usually close _____4_____ nine o'clock in the evening.
After you ____5___ the online shopkeeper what you want, you can have your things in a few days. When you go shopping in a shopping mall, you have to talk ____6____ with the shopkeeper and walk a lot. I don't like it, because i get tired _____7____.
I am teaching my grandmother ___8___ online. She cannot walk very far(遠). ___9____ it is easy for her to shop online. My brother wants to learn how to do it too. He is very _____10____ most of the time. When he has a little free time, he can shop online. So you see, shopping online saves time.
( ) 1. A. shoes B. books C. food D. toys
( ) 2. A. tell B. show C. give D. sell
( ) 3. A. sometimes B. often C. always D. usually
( ) 4. A. in B. on C. at D. for
( ) 5. A. spend B. pay C. cost D. buy
( ) 6. A. a lot of B. much C. lots of D. many
( ) 7. A. easy B. easily C. happy D. happily
( ) 8. A. why to shop B. where to shop C. how to shop D. when to shop
( ) 9. A. because B. for C. so D. but
( ) 10. A. healthy B. free C.lazy D. busy
五、根據中文意思完成下列句子,每空一詞:
1. 這個圖標的意思是“不要喧嘩”。
The sign __________"Don't make _________."
2. 你最喜歡哪種水果,蘋果、桔子還是香蕉?
What fruit do you like ________, apples, oranges __________ bananas?
3. Sandy 游泳比你慢嗎?
__________ Sandy swim ________ than you?
4. 沿著珠江路走,在第三個路口向右拐。
Walk __________Zhujiang Road and _________ the third turning on the right.
5. Jim上周五花了一個小時開車去公司。
It _______ Jim an hour to _________ to his company last Friday.
6. 每天做眼保健操對你的眼睛是有好處的。
____________ eye exercises is good for your ____________.
7. 你父母昨天這時候正在做什么?
What __________ your ________ doing this time yesterday?
六、閱讀理解:
Children all like to play with snow at Christmas. But the climate(氣候)is changing quickly. The weather in winters is getting warmer and warmer.And it doesn't snow in some places in southern England. Sometimes it's hard for children there to have a white Christmas. Many children want to have snow to play with.
But the children in a hospice(收容所)get a big surprise. They have a white Christmas. A rich man called Chris Hopkins bought 10,000 kilos of snow on the Internet for them.
Mr Hopkins said, "The children here are unhappy. They are too young but they have no father or mother to look after them. All children enjoy Christmas with snow and presents. I feel very happy when I find the snow brings smiles to their faces.
( ) 1. Mr Chris Hopkins __________.
A. Is a rich man B. Is a kind old man C. Often visits hospices D. Often buys things
( ) 2. The children in the hospice are nut happy because ___________.
A. They are too young B. They have no father or mother with them
C. They have no snow to play with D. They don't money to buy presents
( ) 3. Mr Chris Hopkins bought snow __________.
A. In a shopping mall B. On the Internet
C. From Father Christmas D. From northern England
( ) 4. The word change in the first line(行)is __________ in Chinese.
A. 零花錢 B. 改變 C. 下降 D. 移動
( ) 5. Which of the following is TRUE?
A. It doesn't snow in northern England these years.
B. The climate doesn't change much in England. .
C. "A white Christmas" is a Christmas with snow.
D. Mr Hopkins likes to play with snow.
小考實戰英語測試試卷答案
一、1.sleeping 2.second 3.mine 4.players 5.more 6.September 7.about
8.happily 9.shopping 10.tired
二、11-15 BCDAB 16-20CDBCD 21-22AA
三、 23. Does 24.is going to visit 25.went 26.mending/tobe mended 27.flying 28.are watching
四、29-33BBCCB 34-38BBCCD
五、39.means, noise 40.best/most, or 41.Does, slower 42.along, take
43.took, drive 44.Doing, eyes 45.Were, parents
六、46-50 ABBBC
對,每樣課程都可以分成一和二兩部分。瞎殲在分段(分階段)考試磨團沖過程中,根據考試計劃,除了把知識點拆分成理論知識和實踐或團能力兩部分外,還有可能把課程分成多次小考,這種分段考試比較接近于分一和二。
您好,考研升搏老師的課程分為一和二,課程一主要吵空祥是考研的基礎知識,包括數學、英語、政治、經濟等;課程二則是考研的技能提升,主要包括模擬題、真題練習虧扒、解題技巧等。考研課程一和二都是非常重要的,只有的學習,才能夠取得好的成績。