1 . 听下面一段独白，回答以下小题。
1. How many natural Christmas trees did Americans buy in 2016?

A．Less than 35 million trees.	B．More than 10 million trees.
C．More than 24 million trees.	D．Less than 24 million trees.

2. What happens to most real Christmas trees after the Christmas season?

A．They are grown once again.	B．They are delivered to a tree farm.
C．They are safely stored away.	D．They are thrown away.

3. What happens to most artificial Christmas trees after the Christmas season?

A．They are moved to a landfill.	B．They are reused next year.
C．They are cut into pieces.	D．They are exchanged for real trees.

2 . 听下面一段独白，回答以下小题。1.

A．Because a monthly fee has to be paid.

B．Because it goes wrong on hot, sunny days.

C．Because it is hard and expensive to be installed.

D．Because it often makes us confused when being used.

2.

A．It’s a dream that will come true sooner or later.

B．It’s a new and good way to track your vehicle.

C．It’s a regular device that works with a smartphone.

D．It’s a tracking device that is changing our life greatly.

3.

A．Efficient but expensive.	B．Innovative but time-consuming.
C．Free but hard to install.	D．Small but user-friendly.

3 .

A．Indoor games and outdoor games.

B．Individual drills.

C．Hobbies and interests.

D．Forms of exercise.

4 . 听下面一段独白，回答以下小题。1.

A．He and other construction workers’ daily life.

B．He’s bitter life in construction sites.

C．He’s view on the changes back in his hometown.

D．He and his wife’s happy life in Sichuan Province.

2.

A．For about four years.	B．For about five years.
C．For about six years.	D．For about eight years.

3.

A．Because his life looks fantastic and full of high tech.

B．Because viewers see optimism and dedication there.

C．Because his vlogs are full of something ridiculous.

D．Because He and his wife’s life is very unique.

5 . 听下面一段独白，回答以下小题。1.

A．The plants barely grew without radiation.	B．The plants didn’t grow fast enough.
C．The plants looked much stronger.	D．Not all the seeds grew in lunar dirt.

2.

A．Because the astronauts didn’t take care of the dirt.

B．Because the dirt was exposed to radiation and solar wind for too long.

C．Because the dirt stressed the plants the most.

D．Because the Apollo 11 mission was unsuccessful.

3.

A．Because they felt it meaningless to keep the dirt for long.

B．Because they wanted more researchers to do experiments on it.

C．Because they are preparing to send astronauts to the moon again.

D．Because they want astronauts to know more about the moon dirt.

6 .

A．The man works as a tour guide.	B．The man loves his country the best.
C．The man has saved money for ten years.	D．The man has been to many countries.

7 . 听下面一段较长对话，回答以下小题。1.

A．Their average lifespan was less than 50 years.

B．It was very common for them to have 12 children.

C．They retired from work much earlier than today.

D．They were quite optimistic about their future.

2.

A．Get ready for ecological changes.

B．Adapt to the new environment.

C．Learn to use new technology.

D．Explore ways to stay young.

3.

A．When all women go out to work.

B．When family planning is enforced.

C．When a world government is set up.

D．When all people become wealthier.

4.

A．Eliminate poverty and injustice.

B．Migrate to other planets.

C．Control the environment.

D．Find inexhaustible resources.

8 . 听下面一段独白，回答以下小题。1.

A．It tends to wander towards unpleasant experiences.

B．It wanders for almost half of their waking time.

C．It has trouble concentrating after a brain injury.

D．It tends to be affected by their negative feelings.

2.

A．To find how happiness relates to daydreaming.

B．To observe how one’s mind affects one’s behavior.

C．To see why daydreaming impacts what one is doing.

D．To study the relation between health and daydreaming.

3.

A．Participants with clear goals in mind outperformed those without clear goals.

B．The difference in performance between the two groups was insignificant.

C．Non-daydreamers were more confused on their tasks than daydreamers.

D．Daydreamers did better than non-daydreamers in task performance.

9 . 听下面一段独白，回答以下小题。1.

A．To guide and help children’s play.	B．To give children an opportunity to play.
C．To make children excited.	D．To keep children company.

2.

A．It determines the standard a child can reach.

B．It is the happiest period during one’s life.

C．It is the most important time to shape one’s character.

D．It is the best time for children to learn new things.

3.

A．The relationship between play and learning.

B．The way to help children develop both physically and mentally.

C．The importance of children’s play.

D．Different stages of children’s development.

10 . 听下面一段独白，回答以下小题。1.

A．Theft.

B．Air crash.

C．Cheating.

D．Road accidents.

2.

A．Learn the local customs.

B．Have the right documents.

C．Book tickets well in advance.

D．Make hotel reservations.

3.

A．Contact your agent.

B．Use official transport.

C．Get a lift if possible.

D．Have a friend meet you.