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（有機(jī)體）．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．
簡(jiǎn)略回答問(wèn)題
（2）What does DNA contain？ It contains genetic instructions．It contains genetic instructions．．
將文中橫線(xiàn)處所缺單詞寫(xiě)在下面的橫線(xiàn)上
（3）getget．
寫(xiě)下本文的主題句
（4）Here is an introduction of DNA．Here is an introduction of DNA．．
將文中畫(huà)線(xiàn)句子譯成漢語(yǔ)
（5）你的手會(huì)幫助你抓住東西并且做許多其他的事情．你的手會(huì)幫助你抓住東西并且做許多其他的事情．．
【考點(diǎn)】人與社會(huì)．
【答案】；they have different DNA；It contains genetic instructions．；get；Here is an introduction of DNA．；你的手會(huì)幫助你抓住東西并且做許多其他的事情．
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發(fā)布：2024/6/27 10:35:59組卷：15引用：1難度：0.9
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1．Dear Laura，
Thanks for your message.Yes，I'm having a great time as an （1）estudent in France.I was a bit nervous before I arrived here.But my （2）hfamily is really nice.They go out of their way to make me feel at home.The granddaughter about my age is really kind.She always talks to me in French to help me practise.And you wouldn't believe how quickly my French has （3）i.
My biggest challenge is learning how to do at the dinner table.Things are really different from the way they are at home.For example，you should put your bread on the table （4）iof on your plate.You shouldn't eat anything with your hands except bread，not even fruit!You have to cut it up and （5）eit with a fork.I have to say that it is strange at first，but I'm getting used to it now.
Hope you are having a good school year!發(fā)布：2025/1/30 8:0:1組卷：35引用：3難度：0.5 -
2．閱讀短文，根據(jù)首字母或所給詞的適當(dāng)形式填空，使文章語(yǔ)義通順。
Dear Laura，
Thanks for your message.Yes，I'm having a great time on my 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.They go out of their （1）wto make me feel at home.The grandmother has a teenage granddaughter （2）wis really kind.She always talks to me （3）iFrench to help me practice.My French （4）（improve） quickly since I arrived here! （5）TI still make lots of mistakes，it doesn't worry me as it used to.
Learning how （6）（behave） at the dinner table is a hard part for me.As you can imagine，things are really different from the way they are at home.For example，you shouldn't put your bread on your plate.You （7）（suppose） to put it on the table!Besides，you shouldn't eat anything with your hands except bread.Another thing is that it is very （8）（polite） to say you're full.If you don't want anything else，you should just say， "It was delicious." I find it difficult to remember everything，but I'm （9）（gradual） getting used to it.French customs are not so strange to me any （10）m.
I'll write again soon and tell you more about my life here.Hope you are having a good school year.
Yours，
Lin Yue發(fā)布：2025/1/30 8:0:1組卷：18引用：2難度：0.3 -
3．
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發(fā)布：2025/1/30 8:0:1組卷：37引用：2難度：0.4