外研版(2019)高中英语必修选择性第二册Unit 1 同步练习题(含答案解析)

外研版（2019）高中英语必修选择性第二册Unit 1 同步练习题
(限时：35分钟)
Ⅰ.阅读理解
A
The New York Botanical Garden is a good place for camps.Science-and nature-themed camps for kids in Grades K-8 include outdoor explorations, science investigations, and behind­the­scenes tours in the Garden's 250­acre scenery.Each week takes full advantage of the Garden's vast plant collection, state­of­the­art technology, and unique habitats (栖息地) like the 50-acre native forest, wetlands, and Native Plant Garden.
Winter Break Camp
The science and nature camps for kids in Grades K­5 will run concurrent (并存的) sessions by age groups.With the help of the instructors in separate spaces, kids will take part in some indoor activities based on their age and learning level, such as learning to make handicrafts and grow plants.
Time: February 18－21, 2021, 9 am－3 pm
Fee: $240
Spring Break Camp
The Everett Children's Adventure Garden is a good place for kids on Spring Break.Choose among several different day camps­offering exciting and educational opportunities to children entering Grades K-5 in Spring 2021.
Time: April 13－17, 2021, 9 am－3 pm
Fee: $300
Culinary (烹饪的) and Art Camps
Week­long camps will teach kids how to paint and prepare a meal, which is sure to help develop kids'confidence.In order to ensure availability for all camp families, this camp participation is limited to three weeks per camper.
Time: August 3－21, 2021，9 am－3 pm
Weekly: $315
Summer Field Science Camps
Do you have a teen who loves spending time outdoors and working in teams? Children will learn more about the plants and animals in the Garden and go behind the scenes to find out about field research happening at the Garden.Sign up for a single week or a series of weeks.
Time: August 3－21，2021，9 am－4 pm
Weekly: $350
3-Week Summer Session: Save 10% when you register for all 3 weeks.
1．What can we learn about the Winter Break Camp?
A．It has only one section at a time.
B．The camp will last for a whole week.
C．All the children study at the same place.
D．Activities will be designed by kids' grades.
2．Which of the following camps lasts the shortest time?
A．Winter Break Camp.
B．Spring Break Camp.
C．Culinary and Art Camps.
D．Summer Field Science Camps.
3．How much will a child pay for the complete session of Summer Field Science Camps?
A．315 dollars.B．350 dollars.
C．945 dollars. D．1，050 dollars.
B
Thousands of satellites have been launched into space by humans since the first satellite was launched in 1957.The satellites serve many useful purposes.Some are an important part of communications networks, like cellphones, TV, and the Internet.Others are used to track weather and climate information, create maps of the earth, operate navigation (导航) systems like GPS, and take photos of the earth, the sun, other planets and deep space.Right now, there are about 1，000 artificial satellites orbiting the earth.The International Space Station (ISS) is also a kind of satellite, with room for people to live on it.
SpaceX, the American technology company, began launching groups of satellites in 2019 and launched 60 satellites into space on January 29, 2020.SpaceX plans to create a network of 12，000 satellites first.It says that the network, known as Starlink will help provide better Internet service for remote parts of the world.However, astronomers say the growing number of satellites orbiting the earth is causing a problem.
Satellites are made of metal that reflects sunlight.This makes them show up in the night sky as bright, slow­moving dots.The Starlink satellites take three to five minutes to cross the viewing area of a telescope.During that time, they may pass directly in front of the object an astronomer is trying to look at, hiding it from view.Besides, the light from the satellites is so bright that it makes it impossible to see the weaker light of distant stars and planets.
Large groups of satellites like the Starlink­known as “satellite constellations (卫星星座)”— give off radio signals of their own and reflect radio waves coming from the earth.These extra signals interfere with radio waves coming from places further away in the galaxy.While it might be possible to build satellites with surfaces that don't reflect light, making satellites that don't
interfere with radio waves is a different story.
There are no rules about who can launch a satellite, or how many satellites can orbit the earth at one time.The International Astronomical Union (IAU), a group made up of professional astronomers worldwide, wants to work with the companies that design and launch satellites and the governments that make laws and regulations.They say it is important to study the impact of having so many satellites and to make rules to protect the night sky.
4．What does the first paragraph mainly talk about?
A．Humans' ambition to launch satellites.
B．The various functions of artificial satellites.
C．Humans' achievements in space exploration.
D．The difference between satellites and the ISS.
5．What is the problem of the Starlink satellites according to the astronomers?
A．Giving off too much light.
B．Moving too slowly in space.
C．Badly affecting the study of space.
D．Always hiding themselves from view.
6．What does the author try to convey in the last paragraph?
A．That people shouldn't abuse outer space.
B．That the IAU will stop launching satellites.
C．That astronomers aren't in favour of exploring space.
D．That the companies should work with the governments.
7．What is the structure of the text?
A．①—②③④—⑤B．①—②③—④—⑤
C．①②—③④—⑤D．①②—③④⑤
C
Lots of ancient treasures have been uncovered by researchers on the island, Chrysi, which was devoted to making a precious purple dye (染料) from sea snails thousands of years ago.
The researchers found plenty of shells of sea snails in several small buildings in the settlement of Minoans (属于米诺斯文化的克里特人) on Chrysi —those sea snails are called murexes, which have the purple substance (物质) in their bodies.In the large building, researchers found ancient work desks, stoves, buckets, a stone staircase and precious jewels and metals.These things suggest that people in the large building managed the settlement's production of the purple dye and the trade with buyers who visited the island by ship.The buyers paid for the goods using precious metals and jewelry.
Researchers have studied the Minoans'settlement on Chrysi since 2008, having many
discoveries, including the remains of large carved stone tanks near the waterline on the beach.Based on their earlier work, researchers suspect that the tanks were used to farm the sea snails, murexes, to increase their numbers and reduce the work of harvesting them from the sea.
When murexes grew up in the tanks, they were probably used by the Minoans to produce the purple dye.Researchers say the Minoans on Chrysi made the purple dye from murexes about 4，000 years ago.But some people don't believe that the purple dye was made from murexes on Chrysi at that time.They state, “Why didn't those ancient people use cheaper plants to produce the purple dye？” Deborah didn't think so.He told Li v e Science, “Through our study, cheaper plant substitutes did not come around until the Middle Ages (5 AD－15 AD).And the purple dye produced by the ancient Minoans had many characteristics similar to the purple substance inside murexes' bodies.”
Murexes can make a small amount of the purple substance inside their bodies, using it as a poisonous defense against other creatures.It takes thousands of the sea snails to produce enough purple dye to color a single dress.It's a difficult and sometimes dangerous task.There was danger and discomfort involved in harvesting these creatures.Strength was required to break open their shells, and the smell was terrible.
8.The discoveries in the large building show that Chrysi ________．
A．was the first island to make the purple dye
B．produced different dyes from plants
C．might have a relatively developed economy
D．witnessed the Minoans' fight against outsiders
9．Stone tanks on Chrysi were likely built to ________．
A．collect drinking water
B．make murexes more available
C．kill murexes caught in the sea
D．help color the cloth and other objects
10．What did Deborah try to express in her words?
A．People can gain the purple dye from plants.
B．The Minoans farmed murexes mainly to sell their meat.
C．Some people doubt the source of the Minoans' purple dye.
D．The Minoans gained the purple dye most possibly from murexes.
11．What can we learn from the Minoans' process of gaining the purple dye?
A．The Minoans were not encouraged to go to sea.
B．The purple dye made by Minoans might be valuable at that time.
C．The task of catching murexes on the sea can be fun.
D．The purple dye might be unpopular with many Minoans.
D
Math anxiety is an annoying fear of math, and it affects the classes college students select and the careers they pursue.As a cognitive (认知的) scientist, I am concerned that it prevents students who otherwise have the ability to succeed in STEM (Science, Technology, Engineering and Mathematics) from doing so.
Math anxiety starts at a young age for both sexes.My research team found that as early as the first and second grade, nearly half of students indicate they are “moderately nervous” to “very, very nervous”about math.A quarter of students attending four­year colleges experience moderate or high levels of math anxiety.And one study found that, for 11% of American university students, the anxiety is so severe that they have to seek for counsel.
Sadly, the U．S.Bureau of Labor Statistics indicates that employment in math­heavy positions will escalate by 28% by 2026.It is much faster than the average for all careers.However, my own research and other studies show that we are not doing enough to address math anxiety.
How do we solve the problem and ensure young Americans pursue opportunities that qualify them for STEM jobs of the future? We can work to bring math to those who might shy away from it.Requiring that all students take courses that push them to think empirically (以经验为主地) with data, regardless of the major, is one such approach.
Employers should encourage applications from college students with diverse educational interests in their STEM­related internships (实习).Don't only seek for the computer science majors.This means potentially taking a student who doesn't come with all the computation skills in hand but does have a good attitude and willingness to learn.Then they can provide advanced math and computational training for those college students as part of career development.
Moreover, we need to reject the social acceptability of being bad at math.You do hear many people talking about “not being a math p erson”．When we repeat negative feelings like that to ourselves and each other, we fear math more.
12．What makes the author worried according to Paragraph 1?
A．That there are few STEM-related majors.
B．That the fear of math will lead to severe math anxiety.
C．That college students fail to select proper professions.
D．That students' fear of math prevents their success in STEM.
13．What did the author's research team find?
A．Math anxiety is common at all age levels.
B．Girls tend to perform better in math than boys.
C．College students can overcome their math anxiety.
D．Math anxiety can be classified into different degrees.
14．What does the underlined word “escalate”in Paragraph 3 mean?
A．Improve. B．Increase.
C．Drop. D．Recover.
15．What does the author advise employers to do?
A．Offer students free STEM­related internships in colleges.
B．Assist colleges in improving students' computation skills.
C．Welcome students with different majors to work for them.
D．Provide students with chances to develop their interests.
Ⅱ.阅读七选五
For many people, the costs associated with a daily commute (通勤) to a distant work site can be annoying.If children are involved, then there are the added expenses of professional childcare while the parents are at work.__16__
Some at­home jobs are extensions of household duties already being performed, such as laundry services, childcare and food preparation.At­home parents with suitable skills can operate their own daycare centers for the working parents, for instance.__17__ So it is an ideal home­based business for experienced parents.
Some at­home jobs can be more creative in nature, such as the creation of specialty (特色) crafts or foods. Some people who prefer to work out of their homes will spend their time creating marketable craft or food items during the week and either sell them directly on weekends or send them to established business for retail sale.__18__
__19__ Some workers can receive his or her assignments through email, process the files and upload the finished work back to the company through a secure Internet connection.
Telecommuting is sometimes an ideal solution for those who prefer to work in a standard office environment.__20__ They consider doing at-home jobs as satisfying as making the long daily commute to the office.
A．Competition for online jobs can be severe.
B．The young, in particular, prefer to do jobs at home.
C．Childcare services are often in great demand these days.
D．One solution growing in popularity is to do jobs at home.
E．However, there are people who are willing to do jobs at home.
F．Other at­home jobs today are generally more technical in nature.
G．Meanwhile, many people choose to market their homemade products online.
外研版（2019）高中英语必修选择性第二册Unit 1 同步练习题
(限时：35分钟)
Ⅰ.阅读理解
A
The New York Botanical Garden is a good place for camps.Science-and nature-themed camps for kids in Grades K-8 include outdoor explorations, science investigations, and behind­the­scenes tours in the Garden's 250­acre scenery.Each week takes full advantage of the Garden's vast plant collection, state­of­the­art technology, and unique habitats (栖息地) like the 50-acre native forest, wetlands, and Native Plant Garden.
Winter Break Camp
The science and nature camps for kids in Grades K­5 will run concurrent (并存的) sessions by age groups.With the help of the instructors in separate spaces, kids will take part in some indoor activities based on their age and learning level, such as learning to make handicrafts and grow plants.
Time: February 18－21, 2021, 9 am－3 pm
Fee: $240
Spring Break Camp
The Everett Children's Adventure Garden is a good place for kids on Spring Break.Choose among several different day camps­offering exciting and educational opportunities to children entering Grades K-5 in Spring 2021.
Time: April 13－17, 2021, 9 am－3 pm
Fee: $300
Culinary (烹饪的) and Art Camps
Week­long camps will teach kids how to paint and prepare a meal, which is sure to help develop kids'confidence.In order to ensure availability for all camp families, this camp participation is limited to three weeks per camper.
Time: August 3－21, 2021，9 am－3 pm
Weekly: $315
Summer Field Science Camps
Do you have a teen who loves spending time outdoors and working in teams? Children will learn more about the plants and animals in the Garden and go behind the scenes to find out about field research happening at the Garden.Sign up for a single week or a series of weeks.
Time: August 3－21，2021，9 am－4 pm
Weekly: $350
3-Week Summer Session: Save 10% when you register for all 3 weeks.
语篇解读：本文是一篇应用文。

文章主要介绍了适合孩子们的几个野营活动。

1．What can we learn about the Winter Break Camp?
A．It has only one section at a time.
B．The camp will last for a whole week.
C．All the children study at the same place.
D．Activities will be designed by kids' grades.
解析：选D细节理解题。

根据Winter Break Camp中“kids will take part in some indoor activities based on their age and learning level”可推知答案。

2．Which of the following camps lasts the shortest time?
A．Winter Break Camp.
B．Spring Break Camp.
C．Culinary and Art Camps.
D．Summer Field Science Camps.
解析：选A细节理解题。

根据四个活动中的Time可知，Winter Break Camp持续时间最短。

3．How much will a child pay for the complete session of Summer Field Science Camps?
A．315 dollars.B．350 dollars.
C．945 dollars. D．1，050 dollars.
解析：选C数字计算题。

根据Summer Field Science Camps中的Weekly：D|S350以及3-Week Summer Session: “Save 10% when you register for all 3 weeks.”可得出答案为D|S350×3×(1－10%)＝D|S945。

B
Thousands of satellites have been launched into space by humans since the first satellite was launched in 1957.The satellites serve many useful purposes.Some are an important part of communications networks, like cellphones, TV, and the Internet.Others are used to track weather and climate information, create maps of the earth, operate navigation (导航) systems like GPS, and take photos of the earth, the sun, other planets and deep space.Right now, there are about 1，000 artificial satellites orbiting the earth.The International Space Station (ISS) is also a kind of satellite, with room for people to live on it.
SpaceX, the American technology company, began launching groups of satellites in 2019 and launched 60 satellites into space on January 29, 2020.SpaceX plans to create a network of 12，000 satellites first.It says that the network, known as Starlink will help provide better Internet service for remote parts of the world.However, astronomers say the growing number of satellites orbiting the earth is causing a problem.
Satellites are made of metal that reflects sunlight.This makes them show up in the night sky as bright, slow­moving dots.The Starlink satellites take three to five minutes to cross the viewing area of a telescope.During that time, they may pass directly in front of the object an astronomer is trying to look at, hiding it from view.Besides, the light from the satellites is so bright that it makes it impossible to see the weaker light of distant stars and planets.
Large groups of satellites like the Starlink­known as “satellite constellations (卫星星座)”— give off radio signals of their own and reflect radio waves coming from the earth.These extra signals interfere with radio waves coming from places further away in the galaxy.While it might be possible to build satellites with surfaces that don't reflect light, making satellites that don't interfere with radio waves is a different story.
There are no rules about who can launch a satellite, or how many satellites can orbit the earth at one time.The International Astronomical Union (IAU), a group made up of professional astronomers worldwide, wants to work with the companies that design and launch satellites and the governments that make laws and regulations.They say it is important to study the impact of having so many satellites and to make rules to protect the night sky.
语篇解读：本文是一篇说明文。

文章主要说明了SpaceX计划创造一个由数万颗地球卫星组成的网络，这个网络带来便利的同时也会导致严重的问题。

4．What does the first paragraph mainly talk about?
A．Humans' ambition to launch satellites.
B．The various functions of artificial satellites.
C．Humans' achievements in space exploration.
D．The difference between satellites and the ISS.
解析：选B段落大意题。

根据第一段“The satellites serve many useful purposes.Some ...Others ...”可知，本段主要介绍了人造卫星的各种功能。

5．What is the problem of the Starlink satellites according to the astronomers?
A．Giving off too much light.
B．Moving too slowly in space.
C．Badly affecting the study of space.
D．Always hiding themselves from view.
解析：选C细节理解题。

根据第三段内容可知，Starlink satellites带来的问题是影响人类对太空的研究。

6．What does the author try to convey in the last paragraph?
A．That people shouldn't abuse outer space.
B．That the IAU will stop launching satellites.
C．That astronomers aren't in favour of exploring space.
D．That the companies should work with the governments.
解析：选A写作意图题。

根据最后一段“it is important to study the impact of having so many satellites and to make rules to protect the night sky”可知，人们应该保护太空，即不应该滥用它。

7．What is the structure of the text?
A．①—②③④—⑤B．①—②③—④—⑤
C．①②—③④—⑤D．①②—③④⑤
解析：选A篇章结构题。

文章第一段讲述了人造卫星的分类和功能，第二至四段讲述了Starlink计划和面临的问题以及此类卫星星座的影响，第五段呼吁人类保护太空资源。

C
Lots of ancient treasures have been uncovered by researchers on the island, Chrysi, which was devoted to making a precious purple dye (染料) from sea snails thousands of years ago.
The researchers found plenty of shells of sea snails in several small buildings in the settlement of Minoans (属于米诺斯文化的克里特人) on Chrysi —those sea snails are called murexes, which have the purple substance (物质) in their bodies.In the large building, researchers found ancient work desks, stoves, buckets, a stone staircase and precious jewels and metals.These things suggest that people in the large building managed the settlement's production of the purple dye and the trade with buyers who visited the island by ship.The buyers paid for the goods using precious metals and jewelry.
Researchers have studied the Minoans'settlement on Chrysi since 2008, having many discoveries, including the remains of large carved stone tanks near the waterline on the beach.Based on their earlier work, researchers suspect that the tanks were used to farm the sea snails, murexes, to increase their numbers and reduce the work of harvesting them from the sea.
When murexes grew up in the tanks, they were probably used by the Minoans to produce the purple dye.Researchers say the Minoans on Chrysi made the purple dye from murexes about 4，000 years ago.But some people don't believe that the purple dye was made from murexes on Chrysi at that time.They state, “Why didn't those ancient people use cheaper plants to produce the purple dye？” Deborah didn't think so.He told Li v e Science, “Through our study, cheaper plant substitutes did not come around until the Middle Ages (5 AD－15 AD).And the purple dye produced by the ancient Minoans had many characteristics similar to the purple substance inside murexes' bodies.”
Murexes can make a small amount of the purple substance inside their bodies, using it as a poisonous defense against other creatures.It takes thousands of the sea snails to produce enough purple dye to color a single dress.It's a difficult and sometimes dangerous task.There was danger and discomfort involved in harvesting these creatures.Strength was required to break open their shells, and the smell was terrible.
语篇解读：本文是一篇说明文。

考古学家在一个岛上发现了数千年前岛民们用一种海里的动物来制造紫色染料。

8.The discoveries in the large building show that Chrysi ________．
A．was the first island to make the purple dye
B．produced different dyes from plants
C．might have a relatively developed economy
D．witnessed the Minoans' fight against outsiders
解析：选C推理判断题。

由第二段中的“In the large building, researchers found ancient work desks ...precious metals and jewelry.”可知，Chrysi岛上的经济可能比较繁荣。

9．Stone tanks on Chrysi were likely built to ________．
A．collect drinking water
B．make murexes more available
C．kill murexes caught in the sea
D．help color the cloth and other objects
解析：选B细节理解题。

由第三段中的“the tanks were used to farm the sea snails, murexes, ...from the sea”可知，那些石水箱是用来饲养sea snails和murexes的，目的是避免人们出海捕捞，以让它们更容易被获取。

10．What did Deborah try to express in her words?
A．People can gain the purple dye from plants.
B．The Minoans farmed murexes mainly to sell their meat.
C．Some people doubt the source of the Minoans' purple dye.
D．The Minoans gained the purple dye most possibly from murexes.
解析：选D细节理解题。

由第四段中的“They state, ‘Why didn't those ancient people use cheaper plants to produce the purple dye？’”和Deborah的话语可知，Deborah想说的是Chrysi岛上的远古居民Minoans是从murexes中获取紫色染料的。

11．What can we learn from the Minoans' process of gaining the purple dye?
A．The Minoans were not encouraged to go to sea.
B．The purple dye made by Minoans might be valuable at that time.
C．The task of catching murexes on the sea can be fun.
D．The purple dye might be unpopular with many Minoans.
解析：选B推理判断题。

由最后一段中的“It takes thousands ...smell was terrible.”可知，制作这种紫色染料非常困难，需要付出大量的人力、物力，故可推断，Minoans制作的这种染料在当时可能很珍贵。

D
Math anxiety is an annoying fear of math, and it affects the classes college students select and the careers they pursue.As a cognitive (认知的) scientist, I am concerned that it prevents students who otherwise have the ability to succeed in STEM (Science, Technology, Engineering and Mathematics) from doing so.
Math anxiety starts at a young age for both sexes.My research team found that as early as the first and second grade, nearly half of students ind icate they are “moderately nervous” to “very, very nervous”about math.A quarter of students attending four­year colleges experience moderate or high levels of math anxiety.And one study found that, for 11% of American university students, the anxiety is so severe that they have to seek for counsel.
Sadly, the U．S.Bureau of Labor Statistics indicates that employment in math­heavy positions will escalate by 28% by 2026.It is much faster than the average for all careers.However, my own research and other studies show that we are not doing enough to address math anxiety.
How do we solve the problem and ensure young Americans pursue opportunities that qualify them for STEM jobs of the future? We can work to bring math to those who might shy away from it.Requiring that all students take courses that push them to think empirically (以经验为主地) with data, regardless of the major, is one such approach.
Employers should encourage applications from college students with diverse educational interests in their STEM­related internships (实习).Don't only seek for the computer science majors.This means potentially taking a student who doesn't come with all the computation skills in hand but does have a good attitude and willingness to learn.Then they can provide advanced math and computational training for those college students as part of career development.
Moreover, we need to reject the social acceptability of being bad at math.You do hear many people talking about “not being a math p erson”．When we repeat negative feelings like that to ourselves and each other, we fear math more.
语篇解读：本文是一篇议论文。

文章论述了美国学生的数学恐惧心理会影响他们以后职业的选择，并介绍了消除数学恐惧的方法。

12．What makes the author worried according to Paragraph 1?
A．That there are few STEM-related majors.
B．That the fear of math will lead to severe math anxiety.
C．That college students fail to select proper professions.
D．That students' fear of math prevents their success in STEM.
解析：选D细节理解题。

根据第一段的“...I am concerned that it prevents students ... from doing so.”可知，数学恐惧心理会妨碍他们在STEM领域的成功。

13．What did the author's research team find?
A．Math anxiety is common at all age levels.
B．Girls tend to perform better in math than boys.
C．College students can overcome their math anxiety.
D．Math anxiety can be classified into different degrees.
解析：选A推理判断题。

根据第二段的“My research team found that as early as the first and second grade ...colleges experience moderate or high levels of math anxiety.”可知，数学焦虑症在各个年龄层都很常见。

14．What does the underlined word “escalate”in Paragraph 3 mean?
A．Improve. B．Increase.
C．Drop. D．Recover.
解析：选B词义猜测题。

根据画线单词后的“It is much faster than the average for all careers ...we are not doing enough to address math anxiety.”可知，这比所有职业的平均速度都快得多。

但我们在解决数学焦虑方面做得还不够。

因此可知，到2026年的时候，这方面的职业会“增长”，画线词与B项词义相近。

15．What does the author advise employers to do?
A．Offer students free STEM­related internships in colleges.
B．Assist colleges in improving students' computation skills.
C．Welcome students with different majors to work for them.
D．Provide students with chances to develop their interests.
解析：选C细节理解题。

根据倒数第二段的“Employers should encourage applications ...Don't only seek for the computer science majors.”可知，作者建议公司老板要鼓励非计算机专业的学生参与公司STEM相关领域的实习。

Ⅱ.阅读七选五
For many people, the costs associated with a daily commute (通勤) to a distant work site can be annoying.If children are involved, then there are the added expenses of professional childcare while the parents are at work.__16__
Some at­home jobs are extensions of household duties already being performed, such as laundry services, childcare and food preparation.At­home parents with suitable skills can operate their own daycare centers for the working parents, for instance.__17__ So it is an ideal home­based business for experienced parents.
Some at­home jobs can be more creative in nature, such as the creation of specialty (特色) crafts or foods. Some people who prefer to work out of their homes will spend their time creating marketable craft or food items during the week and either sell them directly on weekends or send them to established business for retail sale.__18__
__19__ Some workers can receive his or her assignments through email, process the files and upload the finished work back to the company through a secure Internet connection.
Telecommuting is sometimes an ideal solution for those who prefer to work in a standard。