题目内容
10.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.
分析 如果我要求你闭上你的眼睛,我给你一块苹果吃,你能告诉我你吃到的是什么吗?当然,你可以.你的舌头可以帮助你区分不同食物的味道.你知道如果你没有鼻子食物的味道会不同吗?
你需要什么
☆一个朋友帮忙
☆小块食物,例如胡萝卜、橙子、香蕉等,无论你有任何食物都可以
☆小块苹果,生土豆和生洋葱(如果你敢的话,可以用)
你需要做什么
实际上有三个不同的实验.你和你的朋友轮流尝试.
实验1:
让你的朋友闭上眼睛,张开嘴.给她一块食物,并要求品尝它.然后问她这是什么.她可能猜到正确答案.
实验2:
当你的朋友闭上眼睛你给她一块生土豆的同时,在她的鼻子下拿着一块苹果.让她吃土豆并问她吃的是什么.她会说是一块苹果!你甚至可以反过来再做一次,她会认为她正在吃一个土豆,或者,也许,她无法说出吃的是什么.
实验3:(大胆的人可以做)
拿一块生洋葱.这次你不必闭上你的眼睛.用你的另一只手捏住你的鼻子,以便没有气味可以进入你的鼻子.现在吃一小块洋葱.惊讶,当你捏住你的鼻子,你将不能尝出洋葱的味道.
科学秘密
你已经知道了科学秘密.你的鼻子和你的舌头一起工作,以区分食物的味道.但是,你的舌头只能区分一些味道,如咸、苦、酸、甜.所有的其他"口味"实际上是"气味",你需要你的鼻子来分辨他们.
哦,下次你被迫吃不喜欢的东西时,你可能会使用这个科学秘密.如果你在吃东西的同时捏住鼻子,你根本不会"品尝"到它是什么.
解答 38.C.推理判断题.根据文章中介绍的三个实验可知,我们并不能单凭味觉来区分食物使什么,还需要嗅觉的辅助,因此我们在辨别食物的时候,People need a sense of smell to taste some food.我们需要"嗅觉"来品尝食物.故选C;
39.A.细节理解题.根据small pieces of apples,raw (uncooked) potato and (if you are brave) onion (洋葱).可知,这里是文章中首次提到如果你勇敢的话,修饰的是生洋葱,而是实验三用到的食物恰恰就是生洋葱,因此实验三要求实验者有一定的勇气是因为用到了生洋葱,即You have to eat a raw onion.故选A;
40.D.文章主旨题.通过三组实验证实,有时我们的感觉并不是完全正确的,因此我们不能单纯凭我们的感觉来得出结论,而是通过实验证实,即We can't draw a conclusion simply from the feeling.故选D.
41.B.文章主旨题.文章大篇幅介绍了三个实验,其目的其实就是为了证明我们品尝食物依赖于味觉和嗅觉,我们仅通过味觉得出的答案可能并不是正确的,因此文章的主旨就是How smell influences the way food tastes.可知正确答案为B.
点评 本文是一篇科普类文章.以实验的形式展现,解释假象后面的原因.做题时要在理解好文意的基础上,与题目有机的结合,从文章中找到相关细节性的句子与选项细细比对,进行选择或推理判断,选出符合文章内容的正确选项.做题注意灵活,有时可采用排除法或直选法确定出最终答案.
-_______.( )
| A. | Every dog has its day | |
| B. | Many hands make light work | |
| C. | The early bird catches the worm | |
| D. | Too many cooks spoil the broth |
| A. | remember | B. | reporter | C. | visitor | D. | villager |
-No,I'm from Tibet.All my classmates are Suzhou nese________me.( )
| A. | except | B. | besides | C. | with | D. | for |