/??b/lab．题目和参考答案——青夏教育精英家教网—

题目内容

18．/??b/lab．

分析根据音标写单词

解答答案：lab
lab，名词，实验室，音标是/??b/，故答案为：lab．

点评本题考查的是单词的读音，平时要注意发音，将语音作为一个系统进行练习．

练习册系列答案

9．-How long ？
-Let me see．We in 2008，that is，for 7years．（　　）

	A．	have you been married；have married
	B．	have you got married；got married
	C．	did you get married；married
	D．	have you been married；got married

13．Li Na is a Chinese tennis player．
She was born in Feb.26，1982，（53）in改为on
in Wuhan．She joined China's National
Tennis Team in 1997．At the end of
2002，she leaves the national tennis                       （54）leaves改为left
team to study at Huazhong University．
Several years later，she became a free
professional tennis player．Three week                     （55）week改为weeks
ago，Li won the 2011French Open and
became the first player from Asia．Everyone in China is very exciting．
                                                           （56）exciting改为excited
She hopes the young Chinese people will do
even well than her in the future．（57）well改为better．

3．Mr．Smith asked me ________．（　　）

	A．	where are you from		B．	where you are from
	C．	where am I from		D．	where I was from

10．

If I were to ask you to close your eyes and I gave you a piece of apple to eat，would you be able to tell me what it is just by tasting it？Of course，you could．Your tongue （舌头） helps you know what different foods taste like．Do you know that foods would taste different if you did not have a nose？
What You Need
☆a friend to help
☆small pieces of any food like carrot，orange，banana-whatever you have
☆small pieces of apples，raw （uncooked） potato and （if you are brave） onion （洋葱）
What You Do
There are actually three different experiments．You and your friend should take turns trying them on each other．
Experiment 1：
Have your friend close her eyes and open her mouth．Give her a piece of the food and ask her to taste it．Then，ask her what she thinks it is．She will probably guess correctly．
Experiment 2：
While your friend has her eyes closed，give her a piece of raw potato．At the same time，hold a piece of apple right under her nose．Ask her to eat the potato and tell you what she thinks it is．She will say it is a piece of apple!You can even do it the other way around，and she will think she is eating a potato，or，perhaps，she won't be able to name what she is eating．
Experiment 3：（for the brave）
Take a piece of raw onion．You don't have to close your eyes this time．Press your nose closed with your other hand so that no smells can get into your nose．Now eat a small piece of the onion．Surprise!As long as you hold your nose，you will not be able to taste the onion．
The Science SecretYou already know the science secret．Your nose and your tongue work together to make food taste the way it does．Your tongue，however，can taste only certain flavors like salty，bitter，sour，and sweet．All of the other"tastes"are actually"smells"，and you need your nose to taste them．
Oh，you might use this science secret the next time you are forced to eat something you don't like the taste of．If you hold your nose while you eat it，you won't"taste"it at all．

38．According to this article，what could a person know about food？C
A．People hold their noses to eat onions．
B．If you close your eyes，food will taste better．
C．People need a sense of smell to taste some food．
D．If you can smell potatoes，you will taste apples．
39．What is the most probable reason Experiment 3is called"for the brave"？A
A．You have to eat a raw onion．
B．You keep your eyes open．
C．You have to hold your nose．
D．You do the experiment alone．
40．What can we learn from the passage？D
A．Knowledge comes from personal experience．
B．Team work helps us to find out science secrets．
C．We should have courage while doing experiments．
D．We can't draw a conclusion simply from the feeling．
41．What's the passage mainly about？B
A．Why different foods can smell the same．
B．How smell influences the way food tastes．
C．Why some things smell better than others．
D．How smell changes the way we see things．

7．Scientists have tried to come up with biological explanations for the difference between boys and girls．
However，none were believable enough to explain the general picture．As one scientist points out，"There are slight genetic （遗传的） differences between the sexes （性别） at birth．They may affect the subjects boys and girls choose．But the difficulty is that by the time children reach school age，there are so many other effects that it is almost impossible to tell whether girls are worse at science and maths，or whether they've been brought up to think of these subjects as boys'"territory"．
Statistics （统计数据） show that in mathematics，at least，girls are equal to boys．A recent report suggests that girls only stop studying mathematics because of social attitudes （态度）．One of the reports'authors says，"While it is socially unacceptable for people not to be able to read and write，it is still acceptable for women to say that they are‘hopeless'at maths．Our research shows that，although girls get marks which are as good as the boys'，they have not been encouraged to do so．"
The explanation for the difference，which is very clear during the teenage years，goes as far back as early childhood experiences．From their first days in nursery school （幼儿园），girls are not encouraged to work on their own or to complete tasks，although boys are．For example，boys but not girls，are often asked to‘help'with repair work．This encouragement leads to a way of learning how to solve problems later on in life．Evidence shows that excellent mathematicians and scientists did not have teachers who provided answers； they had to find out for themselves．
A further report on maths teaching shows that teachers seem to give more attention to boys than to girls．Most teachers who took part in the study admitted that they expect their male students to do better at mathematics and science subjects than their female students．All of this tends to encourage boys to work harder in these subjects，gives them confidence and makes them believe that they can succeed．
Interestingly，both boys and girls tend to regard such‘male'subjects like mathematics and science as difficult．Yet it has been suggested that girls avoid mathematics courses，not because they are difficult，but for social reasons．
Mathematics and science are mainly male subjects，and therefore，as girls become teenagers，they are less likely to take them up．Girls do not seem to want to be in open competition with boys．Neither do they want to do better than boys because they are afraid to appear less female and so，less attractive．
42．The underlined word"territory"in the second paragraph most probably means"C"．
A．great interest
B．big land
C．special field
D．crazy district
43．According to scientific studies，D．
A．maths is not fit for girls to learn
B．boys have a special sense of maths
C．girls are poorer at maths even though they are given enough encouragement
D．girls can learn maths as well as boys if given enough encouragemen
44．Those who made great contribution in mathematics and scienceB．
A．usually had good teachers to help them
B．had the abilities to solve problems by themselves
C．usually worked harder than others
D．were encouraged to repair things when young
45．Which of the following is true according to the text？D
A．It is a social problem rather than a problem of brains that boys are poor at maths．
B．It seems socially acceptable for a girl not to be able to read and write．
C．Mathematics and science are easy subjects to either girls or boys．
D．Girls do not want to compete （竞争） openly with boys．

1．-Excuse me，Sir．Can I take photos here？- ．Look at the sign，it says"No photos"．（　　）

	A．	Of course you can't		B．	That's right
	C．	Sorry，I'm not sure		D．	Sorry，I'm afraid not

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