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
1997年属什么The New York Botanical Garden is a good place for camps.Scienceand naturethemed camps for kids in Grades K8 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 50acre 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) ssions by age groups.With the help of the instructors in parate spaces, kids will take part in som
e indoor activities bad 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.Choo among veral different day campsoffering exciting and educational opportunities to children entering Grades K5 in Spring 2021.
Time: April 13－17, 2021, 9 am－3 pm
Fee: $300
哥哥热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, 演变的近义词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 rearch happening at the Garden.Sign up for a single week or a ries of weeks.
平行线的性质教案
Time: August 3－21，2021，9 am－4 pm
Weekly: $350
3Week Summer Session: Save 10% when you register for all 3 weeks.
好朋友只是朋友1．What can we learn about the Winter Break Camp?
A．It has only one ction 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.
秤的组词D．Summer Field Science Camps.
3．How much will a child pay for the complete ssion 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 rve many uful purpos.Some are an important part of communications networks, like cellphones, TV, and the Internet.Others are ud to track weather and 不放弃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 rvice 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 e 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.The 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.
梦见孩子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.
