1 . A team in Europe are working with wood, but not in the usual ways. They are not carpenters (木匠). Instead, they are scientists exploring how wood can lead to a greener electronic device, a transistor (晶体管) made from balsa wood, whose production releases less climate-warming gas into the air.

Transistors play an important role in computers and other devices. They act like tiny switches to control the flow of electricity. Engineers use them to process and store data. Today’s laptops may host billions of them. So they must be tiny — only a little wider than a strand of DNA.

The new transistor being built by physicist Isak Engquist and his team at Sweden’s Linkoping University isn’t as small as those. Big enough to see and hold, it can stand only an electric pressure that pushes electrons along. And it controls a current using charged particles (粒子) called ions.

This new technology shows a “proof of concept” that the idea can work, even if the new device is not yet ready to put into today’s electronics. “While it seems large by today’s standards, such a transistor still might prove useful for electronics that require low electric pressures,” says Engquist.

“The new transistor suggests that future electronic devices might be made in living plants,” Daniel Simon, a physicist in the team, says. “Imagine peeling away some bark from a living tree,” he says, “and stamping electronic circuits into the living wood.”

In fact, Engquist says, “There are so many ways we can use wood and the components of wood that we would never have thought of.” For instance, he can now imagine a wood-based sensor that could monitor crop health, measure pollution or survey a forest for fire risk.

1. Which can best describe the transistor?

A．Costly.	B．Widely used.
C．Time-saving.	D．More environmentally friendly.

2. What is the new transistor’s disadvantage compared to common transistors?

A．It is much bigger.	B．It can’t stand electric pressure.
C．It can’t be seen.	D．It is made from metal.

3. What is Engquist’s attitude to the new transistor’s future?

A．Uncertain.

B．Doubtful.

C．Positive.

D．Indifferent.

4. What may be the best title for the text?

A．Wood’s surprising roles in modern electronic design

B．Wood-made transistors: a step toward greener electronics

C．Scientists are researching the history of transistors

D．Scientists are working as carpenters to invent transistors

2 . Young people are spending more time in digital spaces. The Internet allows us to connect with people, share ideas, be creative, have fun and discover new things. Unfortunately, young people also face risks online. Common problems include cyberbullying (网络欺凌), receiving unwanted messages, seeing images and content you don’t want to see, or having your private information or photos shared without your permission.

Safer Internet Day (SID) is organized in the second week of February every year, and over 180 countries take part. The aim is to raise awareness of online issues and make the Internet a safer place. SID invites everyone to be part of a big conversation about online issues. This is particularly important for teenagers because they often experience unpleasant situations online, but they don’t always feel they can talk about them.

Cyberbullying is when someone uses the Internet to embarrass, threaten or hurt another person. If you experience cyberbullying, talk to an adult you trust as soon as possible. Don’t reply to any messages but save the evidence.

Going online often means spending time alone. When you feel down, social media can make you feel lonelier. Using social media might be related to higher levels of depression. So you need healthy social media use.

Whatever app you use, make sure you know who sees your posts and personal information. Limit what people can see, decide who can comment on your content and thwart other users’ comment. It may be illegal to share a photo or video of someone without their permission. The SID’s website has advice about what to do if someone shares pictures of you that you feel embarrassed about.

There is still a lot we don’t know about how time spent online affects people’s well-being. But talking about all the issues helps everyone understand common problems and know how to deal with them.

1. What can we learn from paragraph 1?

A．The Internet has both good and bad sides.

B．The Internet is a safe place to share photos.

C．Young people should avoid going online.

D．Young people face more risks than adults.

2. What is paragraph 2 mainly about?

A．What we can do on SID.	B．How to take part in SID.
C．The time of organizing SID.	D．Some information about SID.

3. What should you do if you experience cyberbullying according to the text?

A．Use other social media.	B．Turn to adults for help.
C．Reply to the messages.	D．Deal with it with classmates.

4. What does the underlined word “thwart” in paragraph 5 mean?

A．Admit.

B．Replace.

C．Prevent.

D．Change.

3 . Imagine your home on its messages today. Legos spread over the floor. Dirty socks are jammed between couch cushions. Receipts and pieces of mail litter on the table. Though many of us feel shame when your homes end up in this state, a messy house is not a moral failing. The only thing that actually matters is whether your house is functional and livable.     1    .

Collect trash. First get a trash bag or a trash can. Then move around the room, collecting the garbage. But don’t take out the trash yet.     2    .

Pile up dirty dishes.     3    . Or you can pile them up. Maybe do the dishes. With unwashed plates in the kitchen and dining table, we are sure to be distracted and upset.

Pick up clothing and laundry. Collect the laundry that’s lying around. You can use a laundry basket or a bag. Bring the laundry to the machine and start it, if you want.

Put back things that have a place. This one is pretty straightforward.     4    . But if some items be long in another part of the house, put them in a basket or pile them up by the door for now.

    5    . Sometimes our belongings become disordered because we’ve never chosen a place to store them. We may decide to gather all the stuff that doesn’t have a place, put it in a basket and set it aside. At this point, you may also decide to create a home for these random odds and ends. Some people call this a “junk drawer.”

Once you’ve gone through the five methods, then use your space! Might we suggest a celebratory dance party?

A．Gather things that don’t have a place

B．You can put them in the sink if it’s nearby

C．If that book belongs on the shelf, put it back

D．Pick out your belongings and throw away those unwanted

E．We can’t concentrate with too much trash all around the house

F．The more you leave that room, the less likely you are concentrated

G．This five-step method can quickly get a messy room back to functioning

4 . 听下面一段独白，回答以下小题。
1. What is the speaker?

A．A typist.

B．An editor.

C．A reporter.

2. What is necessary for a volunteer?

A．Doing well in his or her study.

B．Mastering good communication skills.

C．Having some experience.

3. What's the best reason for taking the job?

A．To have fun.

B．To learn to write.

C．To make money.

4. When are volunteers supposed to start working?

A．Sometime next week.

B．The day after tomorrow.

C．Right after the meeting.

5 . 听下面一段较长对话，回答以下小题。
1. Where are the speakers?

A．In a park.

B．In a hospital.

C．In a gym.

2. What happened to the woman yesterday?

A．She fell off the bed.

B．She felt painful in her heart.

C．She had trouble in breathing.

3. What was the woman’s decision?

A．To change her lifestyle.

B．To get more sleep every night.

C．To have a physical examination regularly.

4. What annoys the woman most?

A．Getting up early.

B．Giving up fried chips.

C．Having terrible dreams.

6 . My mom is the greatest mom ever. She seems to have the _________ to solve any challenge. Also, whatever the situation is, she _________ any challenge with a positive attitude.

One day I saw my father, who was out of work, looking at my mom with a worried face. We hadn’t paid rent because of _________ problems, so we had to move out of the house. My sister and I were _________ and my mom comforted us with smiles as if any problem could be _________ easily.

That whole week she tried her best to _________ a place for rent. Worse still, we also had nothing to eat since the food my dad had bought the week before had _________. Even though she didn’t show pain and _________ then, I felt how much it hurt her not to provide a shelter and food for us.

After that whole week of seeing her struggle, _________ fortune smiled at my family. There was a place near my school, which __________ my family even though it was pretty small. Afterwards, my father got a job and could afford the rent and the food. Relief and happiness __________ anxiety and worry on our faces.

Things like these __________ to make me ad mire my mom’s power. When bad situations __________, there are some people complaining about their misfortune, but my mom has the __________ that horrible moments in life should be a chance to become stronger. When things seem to be the worst, we believe she can __________ carry us through the test.

1.

A．income

B．mission

C．material

D．might

2.

A．breaks away from

B．keeps track of

C．responds to

D．trips over

3.

A．religious

B．typical

C．financial

D．historical

4.

A．pleased

B．scared

C．surprised

D．annoyed

5.

A．settled

B．reflected

C．selected

D．avoided

6.

A．construct

B．earn

C．decorate

D．seek

7.

A．faded away

B．run out

C．broken up

D．turned up

8.

A．grace

B．rejection

C．memory

D．despair

9.

A．mild

B．super

C．original

D．flexible

10.

A．harmed

B．impacted

C．confused

D．suited

11.

A．replaced

B．contained

C．represented

D．illustrated

12.

A．keep

B．aim

C．tend

D．try

13.

A．return

B．occur

C．escape

D．disappear

14.

A．tension

B．fable

C．principle

D．fortune

15.

A．definitely

B．frankly

C．briefly

D．hardly

7 . 听下面一段独白，回答以下小题。
1. Why didn’t the businessman write the speech himself?

A．He was too lazy.

B．He was too busy.

C．It was too difficult.

2. How did the audience feel about the businessman’s speech in the end?

A．They got bored.

B．They showed interest in it.

C．They felt angry.

3. Why did the speech run on for an hour?

A．The businessman read it twice.

B．The secretary wrote the speech for an hour.

C．The businessman read the original and the two copies of the speech.

8 . 听下面一段较长对话，回答以下小题。
1. When did the conversation most likely take place?

A．Tuesday morning.

B．Wednesday morning.

C．Thursday morning.

2. How many times was Miss Smith late during that week?

A．Three times.

B．Four times.

C．Five times.

3. Why was Miss Smith late that morning?

A．It was raining.

B．The bus service was very bad.

C．She didn’t have a watch.

9 . 听下面一段较长对话，回答以下小题。
1. What did the man want to do?

A．To look for a gold watch for his wife.

B．To buy a birthday gift for his wife.

C．To buy a diamond ring for his wife.

2. What did the man buy at last?

A．A ring.

B．A watch.

C．A necklace.

3. How much did the man pay for the gift?

A．$2, 250.

B．$2, 000.

C．$2, 500.

10 . 听下面一段较长对话，回答以下小题。
1. What are the man and woman looking for?

A．A comfortable hotel.

B．A modern hotel.

C．An inexpensive hotel.

2. Where could the man and the woman find a hotel they need?

A．Next to a bank.

B．Two－minute drive to the west.

C．On the left side of the street.

3. Where did the conversation most likely take place?

A．Near a bank.

B．Near a hotel.

C．In a restaurant.