Unit 5 Look into Science Lesson 29 DNA-The Story of You— 同步课时练（含解析）

Unit 5 Look into Science Lesson 29 DNA—The Story of You
一、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
二、单句语法填空
6.He _____ (identify) his baggage (行李) among hundreds of others and took it away.
7.Not only Tom's friends but also Tom _____ (enjoy) dancing in the school hall.
8.Do you know who is the__________(own) of the bike
9.Your body uses this pattern__________(build) itself.
10.Your sisters are people__________(relate) to you.
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
答案以及解析
一、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”。
二、单句语法填空
6.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。
7.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。
8.答案：owner
9.答案：to build
解析：use to do sth. 使用某物。
10.答案：related
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。
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