13．During the teenage years.hormonal changes lead to physical changes like rapid muscle growth.burst——青夏教育精英家教网——

13．During the teenage years，hormonal （荷尔蒙的） changes lead to physical changes like rapid muscle growth，burst in height，and weight gain in both boys and girls．Take a look at the information and height and weight charts（图表） for teens presented in this article if the question"How much should I weigh for my age and height"is bothering you．
Average Height and Weight Charts for Teens
Faster growth in kids usually can be noticed at age 8．Genetic factors also affect the physical growth of a child．So，it is perfectly normal for two kids of the same age to have different weights and heights．The following figures should be used as guidelines only．

	For Boys		For Girls
Age	Height	Weight	Height	Weight
in years	in inches	in pounds	in inches	in pounds
12-13	58-62	85-100	60-63	95-105
14-15	63-66	105-125	63-64	105-115
16-17	67-70	130-150	64	115-120
18-20	68-70	150-160	64	125-130

Ideal Body Fat Percentage
Fit men have 14%-17% body fat．
Fit women have 21%-24% body fat．
Male athletes have 6%-13% body fat．
Female athletes have 14%-20% body fat．
The ideal body fat percentage varies mainly according to age，sex and the physical activity of the in-dividual．But it is a fact that some female athletes have body fat as low as 10% and some male athletes had lower than 4% body fat．So，it can be observed that other than the above mentioned factors，genetic factors also influence the body-fat ratio．
Body Mass Index （BMI）
You may use the following formula to calculate your BMI：
As per SI Units （国际单位）：BMI=mass （kg）/[height （meters）]²
Imperial （英制的） Units 1：BMI=mass （Ib．） x703/[height （in．）]²
Imperial Units 2：BMI=mass （Ib．） x 4.88/[height （ft）]²
Following conclusions can be derived from （得到） calculating the BMI：

BMI Calculated	Conclusion
BMI 18.5～25	Normal or ideal weight
BMI＞25	Overweight
BMI＜18.5	Underweight
BMI＜17.5	Extremely underweight
BMI=30 or BMI＞30	Obese（病态肥胖的）
BMI=40 or BMI＞40	Extremely obese

25．According to the Average Height and Weight Charts for Teens，C．
A．girls keep on growing taller during the teenage years
B．girls grow faster at the end of teenager years than boys
C．girls grow faster at the beginning of teenager years than boys
D．boys'average weight is always heavier than girls'during the teenage years
26．Which of the following statements about ideal body fat percentage is RIGHT？D
A．Fit men have higher body fat percentage than fit women．
B．Male athletes have higher body fat percentage than fit men．
C．Female athletes have lower body fat percentage than male athletes．
D．Male athletes have much lower body fat percentage than female athletes．
27．After calculating the BMI，you can reach the conclusion whetherA．
A．your weight is normal
B．your hormone level is normal
C．your height is right for your age
D．your body fat percentage is ideal
28．If a boy is 1.5 meters in height and weighs 68 kilograms，then he isB．
A．normal                        B．obese
C．extremely obese               D．underweight．

12．Mid-IB Summer School
The summer vacation is the time t o prepare for the year ahead．In July and August，Oxford Study Courses will once again hold its Mid-IB Summer School for students to help students get their IB Diploma（国际预科证书）successfully．
Students who have completed the f irst year of their IB Diploma can join us and we can help them prepare for their important second year．Students can choose how many subjects they study．Each subject is studied for one week．You can attend up to 5 weeks．
The Mid-IB Summer School is held at Cam bridge University in the UK （between June 20th and August 1^st） and at Harvard University and the Massachusetts Institute of Technology （MIT） in Boston，USA （between July 6th and July 25^th）．
Student comments
◆"The classes have shown me new ways to learn．I've also learned how to answer exam questions and now feel confident in doing so．"
◆"It was cool creating tight and close relationships with other students from around the world，realizing we all had a connection to each other．"
◆"I really enjoyed the level of independence，although I felt like people were watching out for us．I also felt like an Oxford student!"
◆"I have enjoyed the learning style and the course work has been very useful for my study．"
Enjoy the summer!
Our Summer School gives you an exciting social scene with visits to the fun places in the area，organized sports and social events，and advice on how to enjoy your free time in these amazing cities with your new friends．Welcome to contact us at ose@ose-ib．com or on+44（0）1865 521802!
51．The Mid-IB Summer School is meant for the students whoC．
A．have finished their first year of college
B．plan to apply for Oxford University
C．have completed the first year of their IB Diploma
D．don't know how to spend their summer vacation
52．What can be learned from the text？A
A．A student can at most choose 5 subjects at the school．
B．Students will visit many fun places around the world．
C．Only students from England and America can attend the school．
D．Students can get their IB Diploma when they finish their studies．
53．Which of th e following is NOT a benefit from the course mentioned in Student Comments？B
A．Meeting new people．
B．Seeing new places．
C．Improving the study．
D．Getting new ways of lear ning．
54．The text is most probablyD．
A．a news story B．a speech C．a travel guide D．an advertisement．

11．-I heard they went skiing in the mountains last winter．
-It ______ true because there was little snow there．（　　）

10．Many outside the US continue to see the country as one of opportunities，and despite being in a tough economic position，research shows many young Americans would ________it as well．（　　）

9．注意：此题要求改正所给短文中的错误．对标有题号的每一行作出判断：如无错误，在该行右
边横线上画一个勾（√）；如有错误（每行只有一个错误），则按下列情况改正：
此行多一个词：把多余的词用斜线（\）划掉．
此行缺一个词：在缺词处加一个漏字符号（^），在符号下方写出该加的词．
此行错一个词：在错的词下划一横线，在该横线下方写出改正后的词．
注意：原行没有错的不要改．
It has been a week after we left your family and we are now back home．Thank you very much for showing them around your city and providing us for the wonderful meals．After we said goodbye to you，we go to Washington D．C．，where we stayed for three days．My brother was so much fond of the museums there that he begged my parents to staying another couple of day．However，my father had to return to work on Monday so we fly back last Saturday afternoon．It was really a nice experience．If you'd like to make trip to our city some day，I will be better than happy to be your guide．

8．A woman in the US is able to speak for the first time in 11 years after a pioneering voice box transplant．
Brenda Jensen said the operation was a great success which had saved her life．Thirteen days after the surgery she said her first words，"Good morning．I want to go home．"It is the first time a voice box and windpipe（气管）have been transplanted at the same time and only the second time a voice box has ever been transplanted．
Ms．Jensen，52，had been unable to speak on her own since her voice box was damaged during surgery in 1999．Since then，she has been unable to taste or smell food，could breathe only through a hole in her windpipe and could talk only with the help of an electronic voice box．
In October，surgeons at the University of California Davis Medical Centre removed the voice box and 6cm of the windpipe from a donor body．In an 18-hour operation，this was transplanted into Ms．Jensen's throat and the team connected it to her blood supply and nerves．
Professor Martin Birchall from University College London，who was part of the surgery team，said，"We've learned that we can repair nerves to make even very complex organs function again．It'll open the door to better facial transplants and will be extremely important as tissue engineering develops．"A voice box transplant might be life changing，but it is not life saving．Everyone who receives a transplant must take drugs to control the immune system for the rest of their lives．These drugs can reduce life expectancy，so they are normally set aside for life saving procedures．One of the reasons Ms．Jensen was a suitable person for this transplant was that she was already taking immune controlling drugs after a kidney-pancreas（胰腺）transplant four years ago．Professor Peter Belafsky，part of the surgical team，said，"Brenda was an exceptional（例外的）candidate for the transplant because she was highly motivated．"Anyone who's met Brenda knows that she is a strong and determined person with a great outlook on life in spite of the many physical challenges she's faced over her lifetime．
21．The voice box transplant operation is of great significance because it proves thatB．
A．facial transplants are now easier to perform
B．nerve repairing is a breakthrough in tissue engineering
C．new medical technology is always possible to discover
D．the drugs taken after the operation help the patient live longer
22．Ms．Jensen was a suitable person for this transplant because she wasD．
A．experienced and brave　　
B．seriously ill and motivated　　
C．determined and realistic　　
D．strong-willed and prepared
23．Which of the following is the right chronological order of the event？B
a．Ms．Jensen received a voice box transplant operation．
b．Ms．Jensen began to take immune controlling drugs．
c．Doctors removed the voice box from a donor body．
d．Ms．Jensen had a kidney-pancreas transplant operation．
A．a c d b　　B．d b c a　　C．b d c a　　D．c a b d
24．Which of the following is the best title for the passage？A
A．First Words from New Voice Box．
B．Transplant Saves a Woman's Life．
C．Overcoming Obstacles to Speak Again．
D．Courageous Woman Defeating Fears．

7．Teen star Xu Shilin made Chinese sports history on Tuesday when she officially moved on the top of the International Tennis Federation （ITF） world junior rankings for girls'aged 18-and-under at last week's Osaka Mayor's Cup in Japan．"I am very proud to become the first Chinese player to earn the number one world junior ranking，"said Xu，who has been Asia's top-ranked junior player during the past two years．"The 2014 season is not over yet，so I need to stay focused and continue to play like I did in Japan．Osaka was a really incredible week as I played my style of tennis，keeping the points short and always being aggressive．"
    Xu lives and trains in Shenzhen with her father and coach Xu Yang．Xu has three more tournaments （比赛） to finish the 2014 tennis season．Xu will attempt to defend her Asian titles in singles and doubles in Korea during November 10-16，and then finish the season during the first two weeks of December playing two world-class events-Eddie Herr and Orange Bowl--in Florida，USA．
    As a junior player，Xu was limited to playing 12 professional tournaments in 2014 but has still managed to climb to number 414 in the latest WTA world rankings，one of the highest rankings for a junior player．
    Returning to Florida will be familiar playing conditions for Xu，who lived in the US state with her family while training full-time at various tennis academies during ages 8 to 13，before returning to China in 2012．Remaining outside of the state-supported sports training system，Xu's father Xu Yang has been her full-time coach since putting a racquet （球拍） in her hand at age three．
29．Judging from the second paragraph，we knowC．
A．Xu Shilin must have been relaxed when playing in Osaka
B．Xu Shilin can have a complete relaxation after return from Osaka
C．Xu Shilin will be fully prepared for the coming competition
D．Xu Shilin has build her confidence after the competition in Osaka
30．Xu Shilin's last world-class event this year will be held inD．
A．Shenzhen       B．Osaka       C．Korea        D．Florida
31．Returning to Florida will be familiar playing conditions for Xu Shilin，becauseB．
A．She was born and brought up there
B．She started to receive full-time training there
C．She rose to fame in this condition
D．She was familiar with the living conditions
32．What might be the best title for the passage？A
A．China's Xu Shilin becomes World's No.1 junior tennis player．
B．The International Tennis Federation saw Xu Shilin's growth．
C．China's Xu Shilin and her coach．
D．China's Xu Shilin，a great tennis player．

6．此题要求改正所给短文中的错误．短文中有10处错误，每句中最多有两处．错误涉及一个单词的增加、删除或修改．
增加：在缺词处加一个漏字符号（∧），并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，并在该词下面写出修改后的词．
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）不计分．
Claire didn't want the robot in her house，especially as her husband would be absent for three weeks，and Larry persuaded her that the robot wouldn't harm her or allow her be harmed．It would be a bonus．However，while she first saw the robot，she felt alarming．His name was Tony and he seems more like a human as a machine．He was tall and handsome with smooth hair and a deep voice although his facial expressions never changed．In the second morning Tony，wearing an apron，brought up her breakfast and then asked her whether she needed help dressing．She felt embarrassed and quickly told him to go．It was disturbing and frightening that she looked so human．

5．Do you want to get home from work knowing you have made a real difference in someone's life？
If yes，don't care about sex or age!Come and join us，then you will make it!
Position：Volunteer Social Care Assistant
        （No Pay with Free Meals）
Place：Manchester
Hours：Part Time
We are now looking for volunteers to support people with learning disabilities to live active lives!Only 4 days left．Don't miss the chance of lending your warm hands to help others!
Role：
You will provide people with learning disabilities with all aspects of their daily lives．You will help them to acquire new skills．You will help them to protect their rights and their safety．But your primary concern is to let them know they are valued．
Skills and experience required：
You will have the right values and great listening skills．You will be honest and patient．You will have the ability to drive a car and to communicate in fluent written and spoken English since you'll have to help those people with different learning disabilities．Previous care-related experience will be a great advantage for you．
21．The text is meant toD．
A．Leave a note
B．send an invitation
C．present a document
D．carry an advertisement
22．What does the underlined part mean？A
A．You'll make others'lives more meaningful with this job．
B．You'll arrive home just in time from this job．
C．You'll earn a good salary from this job．
D．You'll succeed in getting this job．
23．The volunteers'primary responsibility is to help people with learning disabilitiesD．
A．to get some financial support
B．to properly protect themselves
C．to learn some new living skills
D．to realize their own importance
24．Which of the following can first be chosen as a volunteer？B
A．The one who can drive a car．
B．The one who has done similar work before．
C．The one who has patience to listen to others．
D．The one who can use English to communicate．

4．假如你是李华，你的美国笔友John对中国文化特别感兴趣，在网上搜到一幅关于中国习俗的图片，不知道上面的汉字和食物是什么．请你用英语写一篇100词左右的电子邮件向他解释．

内容包括：1，描述图片内容

          2，介绍元宵节的背景，活动（适当发挥）
          3，邀请他来中国．
生词注释：灯笼lantern
          元宵节Lantern Festival
          汤圆 Tang yuan．

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