Do you know about DNA？Here is an introduction of it．
DNA is short for deoxyribonucleic acid．It contains genetic instructions．These instructions are used in the development and functioning of all known living organisms（有机体）．That's to say that your DNA decides what you are like．Perhaps this is a little bit difficult for you to understand．Here is an example to explain it more clearly．Before you were born，your DNA had already decided you would have two hands and that each hand would have five fingers． Your hands would help you hold things and do many other things．
However，DNA is more than that．We our DNA from our father and mother．That is why we look like our parents and are not like others．Also because of different DNA，we Chinese look different from Americans．We have black hair and eyes，but many Americans have blue eyes and blond hair．Though we have discussed many things about DNA here，there is still a lot more to know about it．If you would like to know more about DNA，you can go on the Internet．
完成句子
（1）Americans look different from Chinese because they have different DNAthey have different DNA．
简略回答问题
（2）What does DNA contain？ It contains genetic instructions．It contains genetic instructions．．
将文中横线处所缺单词写在下面的横线上
（3）getget．
写下本文的主题句
（4）Here is an introduction of DNA．Here is an introduction of DNA．．
将文中画线句子译成汉语
（5）你的手会帮助你抓住东西并且做许多其他的事情．你的手会帮助你抓住东西并且做许多其他的事情．．
【考点】人与社会．
【答案】；they have different DNA；It contains genetic instructions．；get；Here is an introduction of DNA．；你的手会帮助你抓住东西并且做许多其他的事情．
【解答】
【点评】
声明：本试题解析著作权属菁优网所有，未经书面同意，不得复制发布。
发布：2024/6/27 10:35:59组卷：15引用：1难度：0.9
相似题
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1．将下列单词或短语填入空格中，每格限填一词
A．anything B．something C．smell D．already E．other F．other G．went up
One day when Avantis was travelling on his donkey along the street，he saw two men quarrelling with each other．One was a young man，and the （1）was the owner of an eating house．The owner said， "You must pay for the smell of my food．""I haven't taken （2）from your eating house，" said the young man． "Why must I pay you the money？" "You have just walked by my eating house and taken the （3）of the nice food from my eating house，and you must pay for it，" the owner shouted at him．After Avantis knew what they were quarrelling about，he got off his donkey， （4）to the owner and said， "Well，I'll pay you the money．"He took out a bag of money coins．He shook it and said to the owner "There are a lot of coins in it．Have you heard them？" "Yes，I have，" said the owner． "Please pay me the money quickly，then．" "You have been paid （5）!"said Avantis， "You have taken the sound of my coins．The sound is what I have paid for the smell of your food．"发布：2025/4/7 9:0:1组卷：4引用：1难度：0.6 -
2．
Dear Laura，A.For example，you shouldn't put your bread on your plate.
B.I hope to hear from you soon.
C.I'm very comfortable speaking French now.
D.I don't find French customs so strange anymore.
E.Another thing is that it is very impolite to say you're full
F.They go out of their way to make me feel at home.
Thanks for your message .Yes ，I'm having a great time on my student exchange program in France .I was a bit nervous before I arrived here，but there was no reason to be my host family is really nice .（1）.The grandmother has a teenage granddaughter about my age who is really kind.She always talks to me in French to help me practice.And you wouldn't believe how quickly my French has improved!（2）Though I still make lots of mistakes，it doesn't worry me as it used to.
My biggest challenge is learning how to behave at the dinner table.As you can imagine，things are different from the way they are at home.（3）.You're supposed to put it on the table!I thought that was pretty strange at first，but not I'm used to it.You shouldn't eat anything with your hands except bread，not even fruit.You have to cut it up and eat it with a fork.（4）.If you don't want any more food，you should just say，"That was delicious." Also you're not supposed to put your elbows on the table.I have to say that I find it difficult to remember everything，but I'm gradually getting used to it.（5）.
Dear Laura，I'll write again soon and tell you more about my life in France Hope you're having a good school year.
Yours，
Lin Yue发布：2025/1/30 8:0:1组卷：37引用：2难度：0.4 -
3．根据短文内容回答下列问题
Most people make their living with their hands． But Tom makes his living with his feet． It's a very good thing， too．Tom's story happens in a very small city in England． His parents are very poor． Seven people live in their small house． Tom has no place to play but in the street．Tom's father often plays football． Little Tom wants to play football， too． So his father makes a soft ball for him to kick． It's a sock filled with pieces of old cloth． The little boy kicks it every day．At last Tom learns to kick a real football and he can play football very well．
（1）Most people don't make their living with their feet， do they？．
（2）Where does the story happen？．
（3）Where does Tom live？．
（4）What does Tom kick at first？．
（5）Why doesn't Tom kick a real football at first？．发布：2025/4/7 10:0:1组卷：6引用：1难度：0.4
