Ifwe had to rely on only five senses for survival, we would be in very sad shape indeed.Wewouldn´t know up from down. We wouldn´t know when to eat or drink. We wouldn´tknow what our muscles were doing or what position our limbs were in. Wewouldn´t know when our body was dam-aged because we wouldn´t feel pain. Wemight freeze to death without even a shiver, or overheat with-out a drop ofsweat. The five senses--touch,taste, smell, hearing and sight--respond only tostimulation from the outside world,but the inside world of our bodies must alsoreceive and respond to important messages.
Our internal senseskeep us alive and enable us to use our external senses. In effect, the internalsenses tell our brains how to run our bodies. Hunger or thirst registers in apart of the brain called the hypothalamus(丘脑下部),when a lack of food chemicals are detected in the blood.
Another internal sense that controls our balance is maintained by threefluid-filled loops in the inner ear. Changes in position and gravity affect themotion of this liquid and cause changes in the brain. A sense called kinesthesia(肌肉运动知觉)lets us know the relative positions ofparts of our bodies. Even our breathing is caused by a sense that identifies anoverabundance of carbon dioxide and a lack of oxygen in the blood.
No one has been able to count the number of internal senses. Thepresence of delicate internal senses shows just how marvelously complex wehuman beings are.
第44题单选 This passage deal mostly withthe __
A.internal senses
B.sense of balance
C.five senses
D.brain's function
第45题单选 Hunger is caused by __
A.too much food and water in thebody
B.a lack of oxygen in the blood
C.seeing or thinking about food
D.a lack of certain chemicals in theblood
第46题单选 The passage implies that there aremany senses we __
A.can use only in emergencies
B.may not understand at present
C.never realize we have
D.do not actively use in everyday living
第47题单选 In the second paragraph,the term"in effect" means __
A.in fact
B.it is doubtful
C.often
D.without reason
People are used to speaking theirnative language, so immigrants are having many problems be-tween the firstgeneration and the second generation because they don´t have the same nativelanguage. Also, the second generation is losing their identity. Especially inAmerica, there are many immigrants that came from different countries tosucceed in the States. Because they suffer in lots of areas such as getting ajob and trying to speak English, they want their children to speak English, notonly at school, but also at home in order to be more successful. Because ofthis situation, their children are losing their ethnic identity.
For example, my aunt,who has been living in Chicago for twenty-five years, has three children andthey were all born in the States. The eighteen-year old daughter speaks Englishas a native language and she speaks Korean very well too. She has no problemstalking with her parents, but she still doesn´t understand Korean jokes, andthere are sometimes misunderstandings. The second daughter is fourteen yearsold, and she doesn´t want to speak Korean. My aunt often gets upset with herbe-cause she is very Americanized and they cannot understand each other. Evenwhen my aunt punishes her,this daughter does not understand what my aunt istalking about. The third child is a twelve-year-old son. He speaks English tohis parents and my aunt speaks Korean to him as she does to the seconddaughter. He also has a problem communicating with his parents. My aunt istrying to teach him to speak both languages, but it is very hard for himbecause he speaks English all day and does not understand why he should learnto speak Korean.
We must realize thatlanguage is important and valuable for many reasons. Immigrants should make aneffort to make their children understand their heritage by teaching them theparents´ language. This is very important, not only for the harmony of thefamily, but also in helping the second generation establish their identity.
第48题单选 What do you think this articleis about.?
A.Learning a second language.
B.Immigrants who become sick in the US.
C.Schools attended by immigrants to theUS.
D.Language and its effect on the identityof immigrants.
第49题单选 To whom does the mother speak Korean?
A.Her oldest daughter only.
B.Her two daughters only.
C.All of her children.
D.Only to her son.
第50题单选 Why did the author´s aunt try to teachher children to speak Korean?
A.To help her improve her Korean languageskills.
B.To help them establish a Koreanidentity.
C.To help them succeed in the US.
D.To help them find a good job.
第51题单选 Based on the passage, the phrase"your identity" means
A.your home
B.your dignity
C.who you are
D.where you are from
2017成考报名：2017年成人高考报名时间/入口
2017通关计划：2017年成人高考81天备考复习通关计划
