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Unit 5 Look into Science Lesson 29 DNA The story of you 课时练(第1-2课时含解析)

冀教版九年级全册Unit 5 Lesson 29 同步练习
第1课时(附答案)
一、单句语法填空
1.He _____ (identify) his baggage (行李) among hundreds of others and took it away.
2.Not only Tom's friends but also Tom _____ (enjoy) dancing in the school hall.
3.Do you know who is the__________(own) of the bike
4.Your body uses this pattern__________(build) itself.
5.Your sisters are people__________(relate) to you.
二、单选题
1.Yuan Longping is _____regarded as the greatest scientist in rice planting.
A. suddenly B. patiently C. hardly D. generally
2.I like music and people _______ can make me happy.
A. which B. that C. who D. what
3.There are _____ stars in space. I want to know which one is the nearest to us.
A. billion of B. billions C. billions of D. billion
4.—Mum, I’ve signed for a big box by Future Express(快递). What's in it
—I'm not sure. It________ be a present from your brother.
A. might B. must C. should D. will
5.—Wow, a HUAWEI Mate 30, what a big surprise! Thanks, darling!
—It's your birthday present. But please read the _____ carefully before you use it.
A. information B. instructions C. invitations D. instruments
三、句子翻译
11.她的头发和皮肤有同样的DNA。
Her hair has ______ _______ _______ _____ your skin.
12.我不但会唱歌,而且会跳舞。
I can _____ ______ sing ______ ________ dance.
13.除了门小外,这座房子很漂亮。
The house is beautiful ______ _____ the small doors.
14.这次的大雪已经给这个国家造成了数十亿的损失。
This heavy snow has caused _____ _____ loss to this country.
15.他认为这两个事件相互有联系。
He thought these two events _____ _____ _____ each other.
四、阅读理解
Do you agree with cloning our pets
First, I think cloning pets is good for the pets' owners. Every pet will die one day after some time. It can't live with its owner for their whole life because a human's life is much longer. When it dies, the owner will feel very sad. But then, if there is a cloned pet, the owner will be very happy. I think cloning pets is an creative way to promote (促进) human and animal relationships, which is especially important for children and old people. Pets can bring them much joy.—Kuan Jialin, 13
I think cloning isn't as good as we might think. As we know, cloned animals can't live normal lives like other animals because their lives are shorter. They come into this world, but they can't enjoy their rights to a long life, which is unfair to them. Additionally, cloning affects DNA, which will lead to more genetic (基因的) similarities among pets. All pets will start to look the same and their owners won't be able to part them. This could cause problems.—Liu Xiaoxiao, 13
First, people can help endangered animals survive by cloning them. For example, the Pyrenees goat (比利牛斯山羊) is disappearing. But cloning can help it survive. Cloning can also allow us to make large numbers of animals that can provide us with meat, such as cattle, sheep and pigs. In addition, scientists are looking for new sources of organs for organ transplants (器官移植). I believe this will happen in the near future and save people's lives.—Lin Yaneyane, 13
Cloning is already very expensive. A lot of people can't afford it. There are also health problems. The cloned sheep Dolly had a genetic defect (遗传缺陷) and suffered from a serious lung disease. This means that cloned pets may be at a greater risk of dying earlier than normal pets. What's more, pets can be cloned, but their appearance, personality and even memory are all influenced by their environment outside. We should just cherish (珍惜)the pets we have now.—Sun Ke, 13
1. What does Kuan Jialin think about cloning pets
A. Cloned animals' lives are shorter.
B. Cloning is already very expensive.
C. Cloning can help endangered animals survive.
D. An creative way to promote human and animal relationships.
2. _____ thinks that cloned animals can provide new sources of organs for organ transplants.
A. Kuan Jialin B. Lin Yangyang C. Liu Xiaoxiao D. Sun Ke
3. Sun Ke reminds us _____.
A. cloning affects DNA B. to cherish the pets we have now
C. cloned animals can provide us with meat D. pets can bring children and old people much joy
冀教版九年级全册Unit 5 Lesson 29 同步练习
第2课时(附答案)
Ⅰ. 完形填空
“Up to two-thirds of children don’t get as much sleep as they should do and this can make them nervous and slower at school,” researchers say.
So 1 should young people sleep each night The answer is between 8 and 10 hours. If you don’t get enough sleep at night, you’ll have 2 energy the next day.
But the researchers say many children have missed out on 4,500 hours of sleep by the time they are 7 years old. They say that children miss sleep because they have TVs and computers in their rooms and 3 parents don’t read to their younger children at night any more. The traditional “bedtime story” helps children to relax and fall asleep 4 . Children with TVs and computers in their bedrooms are more likely to sleep badly and to get less than 8 hours sleep. Even 5 one hour’s sleep a night can mean that children do less well at school.
German scientists think that your 6 keeps working while you are asleep. To show that they were 7 , they gave two groups of people a problem to work out. One group went to sleep and the other group stayed 8 . The result The people who slept worked out the answer more quickly, suggesting that their brains had been trying to 9 the answer while the people were asleep. So, make sure you get enough sleep tonight, 10 you’ll be at your best tomorrow.
( )1. A. how much B. how many C. how long D. how often
( )2. A. more B. less C. few D. little
( )3. A. proud B. free C. poor D. busy
( )4. A. peacefully B. carefully C. happily D. sadly
( )5. A. losing B. lost C. loser D. loss
( )6. A. head B. brain C. heart D. thought
( )7. A. perfect B. bright C. right D. great
( )8. A. awake B. alive C. asleep D. absent
( )9. A. think over B. open up C. find out D. put down
( )10. A. or B. but C. if D. and
1. 阅读理解。
Japanese man Jiroemon Kimura is known as the world’s oldest living person and the oldest living man. He celebrated his 116th birthday on April 19, 2013.
Mr. Kimura was born in 1897. He worked as a postman (邮递员) until he was 65 years old. After that he took up farming until he was 90.
Mr. Kimura has seen the 19th century (世纪), the 20th century and is now living in the 21st century. How many people do you think get to live across three centuries Very few! It is said that there are only 12 people still alive who have lived across the three centuries.
Why could Jiroemon Kimura live a longer life Maybe it is because of his good habits. He gets up early, reads newspapers every day and never misses a meal. But it is also because of his genes (基因). Most of people in his family lived past 90 years of age, and his youngest brother lived to be 100.
Japan is also home to the world’s oldest living woman Misao Okawa. She was 115 years old in 2013.
根据短文内容,判断句子正(T)误(F)。
( )1. Jiroemon Kimura celebrated his 116th birthday on April 16.
( )2. Jiroemon Kimura used to be a postman.
( )3. It is said that there are 12 people alive who have seen the 20th and 21st centuries.
( )4. Most of Kimura’s family members lived a longer life.
( )5. Misao Okawa is one year younger than Jiroemon Kimura.
]
冀教版九年级全册Unit 5 Lesson 29 同步练习
第1课时(附答案)
一、单句语法填空
1.答案:identified
解析:句意:他在几百件行李中认出了自己的行李,便把它拿走了。and连接并列成分,由and后的took可知,空处用一般过去时。
2.答案:enjoys
解析:句意:汤姆的朋友和汤姆都喜欢在学校大厅里跳舞。not only…but also…意为“不但……而且……”,连接并列的主语时, 谓语动词遵循就近原则,故谓语动词用第三人称单数形式。
3.答案:owner
4.答案:to build
解析:use to do sth. 使用某物。
5.答案:related
二、单选题
1.答案:D
解析:suddenly“突然”;patiently“耐心地”;hardly “几乎不”;generally“一般来说,通常”。根据句意可知,袁隆平被普遍认为是水稻种植领域最伟大的科学家,故答案为D。
2.答案:B
解析:句意为:我喜欢那些可以让我开心的音乐和人。先行词中既有人又有物,应用关系代词that引导定语从句,故选B项。
3.答案:A
解析:根据答语中的“我不确定”可推断,“它可能是你哥哥送的一个礼物”,故might“可能”符合题意。
4.答案:A
解析:A根据设空前一句I'm not sure.可知此处表示不确定的推测,故选A项。
5.答案:B
解析:—哇,华为Mate 30,太让人惊喜了 !谢谢,亲爱的!—这是你的生日礼物。但在使用之前请仔细阅读用法说明。 information “信息”;instruction常用作复数,表示“用法说明”; invitation“邀请”;instrument“乐器”。
三、句子翻译
11.答案:the same DNA as
12.答案:not only; but also
13.答案:except for
14.答案:billions of
15.答案:were related to
四、阅读理解
答案:1-3 DBB
解析:1.细节理解题。根据宽家林的叙述中的"I think cloning pets is an creative way to promote (促进) human and animal relationships, which is especially important for children and old people"可知选D。
2.细节理解题。根据林洋洋的叙述中的"In addition, scientists are looking for ... save people's lives"可知,林洋洋认为克隆动物可以为器官移植提供新的来源,故选B。
3.细节理解题。根据孙柯的叙述中的"We should just cherish(珍惜)the pets we have now"可知,孙柯提醒我们应该珍惜我们现在拥有的宠物。
冀教版九年级全册Unit 5 Lesson 29 同步练习
第2课时(附答案)
Ⅰ.1. C 句意:年轻人每晚应该睡多长时间?解答 本题考查疑问词辨析。how much针对不可数名词的数量提问;how many针对可数名词的数量提问;how long针对时间段提问;how often对频率提问。下一句提到了8到10小时,是一段时间,故选C。
2. B 解答 根据上句“没有充足的睡眠”提示下句用little的比较级修饰不可数名词energy,表示“更少的精力”。
3. D 解答 本题考查形容词辨析。后句“不再在晚上给孩子们讲故事”说明是“忙碌的”父母们,故选D。
4. A 解答 本题考查副词辨析。根据前文relax(放松)可知,副词peacefully(平和地,平静地)符合语境。
5. A 解答 用动名词短语作主语,表主动。故选A。
6. B 解答 本题考查名词辨析。head头;brain大脑;heart心脏;thought想法。通过下文“suggesting that their brains had been trying to...”判定此句意为“大脑仍在工作”。故选B。
7. C 解答 本题考查形容词辨析。perfect完美的;bright聪明的;right正确的,对的;great很棒的。下文的实验说明了上一句的结论是正确的,因此该句表达的是“为了证明他们是正确的”。故选C。
8. A 解答 本题考查形容词辨析。awake醒着豹;alive活着的;asleep睡着的;absent缺席。根据前句“One group went to sleep (一组睡觉)”说明后面一组是“醒着的(awake)”,故选A。
9. C 解答 本题考查动词词组辨析。前面提到work out,则后面也应用表达“解答”的短语。故选C。
10. D 解答 and是并列连词,表示顺承关系,承接上文的get enough sleep(得到足够的睡眠)。故选D。
Ⅱ. 1. F 解答 细节理解题。根据文章第一段“He celebrated his 116th birthday on April 19, 2013”可知应是April 19而不是April 16,故填F。
2. T 解答 细节理解题。根据文章第二段“He worked as a postman...”可知他过去的职业是邮递员,故填T。
3. F 解答 细节理解题。根据文章第三段“It is said that there are only 12 people still alive who have lived across three centuries”可知是跨越三个世纪而不是the 20th and 21st centuries这两个世纪,故填F。
4. T 解答 细节理解题。根据文章第四段“Most of people in his family lived... to be 100”可判断他的家人活的都比较长,故填T。
5. T 解答 推理判断题。根据文章第一段“He (Jiroemon) celebrated his 116th birthday on April 19,2013”可知2013年Jiroemon 116岁,根据文章最后一段“She (Misao Okawa) was 115 years old in 2013”可知Misao Okawa在2013年115岁。由此判断Misao Okawa比Jiroemon小一岁,故填T。

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