1 . Have you ever been in a bathroom, dressing room or another private area with a mirror and had that feeling that someone is watching you? You can check to see if a mirror is transparent by observing how it is installed and using a few simple techniques to determine if there’s a wall behind it.     1    

Check out the lighting. For a two-way mirror to be effective, the light on the mirrored side needs to be 10 times brighter than the light on the other side. If the lighting is dimmer, it’s possible to see through the glass to the observation area. Look around and determine whether the lighting seems extraordinarily bright.     2    

    3    Press your face up to the mirror and cup your hands around it, creating a dark tunnel to block out as much light as possible. When you do this, if the light in the observation room is at all brighter than the light on your side of the mirror, you should be able to see something through the glass.

Sound it out. The sound of tapping a two-way mirror has also been described as bright or sharp as opposed to a thud (砰的一声) from an everyday mirror. Tap on the surface of the mirror with your knuckle (指节).     4    An observation mirror will produce an open, hollow and echoing sound because there is an open space on the other side.

    5    Then hold a flashlight to the mirror (it can be the “flashlight” on your smartphone). If it is a two-way mirror, the room on the other side will be illuminated and you’ll be able to see it.

A．Turn off the lights.

B．Try to look through the glass.

C．Observe how the mirror is installed.

D．If so, you might be looking at a two-way mirror.

E．There are some accurate ways to tell if a mirror is two-way or not.

F．A normal mirror will produce a dull, flat sound, since it’s placed in front of a wall.

G．People standing on the other side of the wall can observe someone looking in the mirror.

2 . Here is a story about a young boy in New York. He once went to one of Dr. Jane Goodall’s talks and learned about the _______ expressions of chimpanzees.

When he saw a picture of a chimpanzee on a box of _______and it looked like the chimpanzee was grinning (咧嘴笑), the boy _______ from what he’d learned at Dr. Goodall’s talk that the chimpanzee’s look was actually one of _______.

The boy _______ to the cookie-maker asking to take the chimpanzee’s picture off the box. _______ receiving a letter back from the company, he saw the picture of the chimpanzee _______from the box within just a few months.

“I took _______,” the boy now says. “And the company changed.”   _______ it happened that the picture changed, the boy and his family   ________it was his doing.

As the story shows, young students have much more ________ to accomplish change than what   ________may believe. Moreover, students often achieve much more than they ever   ________ they will.

The story also ________us that small actions can have a big impact. We often tend to think about   ________ events like Clean and Green Week. Instead, a lot of small changes can make a(an)   ________. If hundreds or thousands of students   ________ their families to turn off the tap to save water, move the air-conditioning temperature up a degree or two, drive less and make other environmentally friendly changes, the ________ family may change its behaviors.       

With these small yet highly   ________ changes, students have an effect beyond just their own actions. Students can   ________ by realizing that their own actions have more power than they may expect, and environmentalists can benefit as well by taking the time to focus on even the youngest students.

1.

A．frightening

B．facial

C．spiritual

D．naughty

2.

A．cookies

B．drinks

C．fruits

D．toys

3.

A．heard

B．realized

C．understood

D．worried

4.

A．joy

B．relaxation

C．excitement

D．fear

5.

A．called

B．walked

C．wrote

D．talked

6.

A．Regardless of

B．Remind of

C．Except for

D．Along with

7.

A．disappear

B．remove

C．lose

D．take

8.

A．advice

B．control

C．action

D．comfort

9.

A．Whenever

B．However

C．Wherever

D．Whoever

10.

A．accept

B．believe

C．decide

D．agree

11.

A．time

B．enthusiasm

C．wisdom

D．power

12.

A．officials

B．teachers

C．adults

D．teenagers

13.

A．expect

B．gain

C．attempt

D．arrange

14.

A．reminds

B．recommends

C．informs

D．suggests

15.

A．social

B．big

C．new

D．traditional

16.

A．living

B．fortune

C．difference

D．effort

17.

A．convince

B．force

C．want

D．allow

18.

A．rich

B．large

C．common

D．entire

19.

A．peaceful

B．hopeful

C．influential

D．faithful

20.

A．succeed

B．benefit

C．change

D．grow

3 . The early bird catches the worm, right?

There was a time in my life when it seemed I couldn’t advance at work. I had this coworker who was always one step ahead of me.     1     But for some reason, my normally strict boss seemed to love him.

Then one morning I headed into work half an hour early so I could also leave early to catch my flight for a weekend vacation. When I got there, my coworker and boss were chatting over coffee. I joined in and realized they had been having these morning chats for months!

    2     By missing out on these small morning coffee chats, I was missing out on building an important connection for my career. So it’s important that we look at how the time that we arrive at our events is affecting our lives.

Often, we rank things based on how we understand the importance of our punctuality for that event. How early would you show up to something like a doctor’s appointment? Do you get there right on time, or 15 or more minutes earlier?

Think about your job. If it’s more casual and relaxed, do you always show up on time?     3     Did you ever find yourself getting in trouble at work for being late?

Now think about personal events. If you went to a friend’s birthday party or their dinner, would you show up on time? Consider how you show up for even more casual hangouts, like, checking in with your parents.

    4    

When we show up early, we give ourselves the chance to reduce stress about missing out or making anybody else upset.     5    

A．Look at a job where it’s very strict.

B．It’s safe to say I never showed up late again.

C．He wasn’t that much better than me at our job.

D．Have you ever shown up late to a flight on purpose?

E．Missing out something small in our life doesn’t matter.

F．Now, honestly, ask yourself, could you start these things earlier?

G．And we also account for any emergencies that might cause further panic.

4 . We all have memories of what our fathers enjoyed, and all the fun we had with him: travelling, reading, or exploring the neighborhood hiking trail. Each of us has treasured stories and memories of times with dad.    1    

The charm of storytelling,the fun of traveling, the immersion in a book...these are the gifts of a lifetime my father helped me unwrap.    2    All the stories he narrated to engage us and all the travels we took with him opened up a whole new world to me which was like a breath of fresh air in my life.

My father, turning 75 this year, is still a storyteller, but his exploration of the world has turned virtual. Like almost all children, I spent my twenties walking away from his stories since I was always “occupied with my work.”    3     August all expectations, I hear the unsaid health concerns and the frustration at no being able to do everything the way he used to. In contrast, I have travelled farther than he could take us, and read books much more than he ever had time outside his working hours.

    4    That lies in the things he points at and in the activities he helps us manage. He gifts us expediences of strength and courage that power us forward into the big wide world — a world he walks with us so as to better assure that we will be able to explore and navigate its nettles (荨麻) without being held back by our fears or worries.

Have you ever put your ear to a seashell and heard the waves whooshing in there? On the outside, it is a hard shell — pitted, untidily edged and boldly patterned.    5    They seem to have a tough shell, and you have to put them to your heart and listen for the waves of what they feel and whatever it is that they have left unsaid.

A．I am no exception.

B．A father brings the world to us.

C．In some ways, this describes fathers.

D．However, a father can sometimes be hard on us.

E．Inside are some valuable contents that should be treasured.

F．Now older and wiser, I restarted listening attentively to his tales.

G．As I look back on my childhood, I see loads of books and miles of travel.

5 . Banff National Park is home to an amazing wildlife population. But the busy Trans Canada Highway that cuts through the park is a hazard to the lovely animals. To address the problem, Banff first put-up wildlife fencing on either side of the highway to discourage animals from entering the busy road. Then, since 1996, they’ve opened six wildlife overpasses and 38 underpasses to help the animals cross the highway in safety. I was fortunate to visit Banff’s Red Earth Overpass with Trevor Kinley, the project manager with Parks Canada. He told me that so far, they have documented 10, 000 safe animal crossings on this overpass alone. “ Some animals have learned how to use the crossings much more quickly than others. Black bears are the fastest learners, followed by deer. Wolves and lions take the longest to work out how to use them, ” Kinley said, laughing. “ But those animals that are slower to adapt are usually more capable and determined at figuring out the safest way to cross those overpasses and underpasses. ”

There is some criticism (批评) that channeling so much wildlife into a few bridges and tunnels is like making a trap for the animals, offering big animals an easy meal on either side. “ But research has shown that this is not the case, ” Kinley assured me. “ There are no more killings around the crossings than there are anywhere else in the park. ”

Walking over the Trans Canada and then walking underneath through one of the tunnels, I was amazed to see the fresh tracks of black bears, wolves, deer and many kinds of smaller animals. Somehow, all these animal footprints made me so happy, knowing that all this wildlife was passing safely under and over the longest road in Canada.

Hopefully, the success of the wildlife crossings in Banff will continue to inspire similar solutions around the world, where human pressure on wildlife continues to grow.

1. Which of the following best explains “ hazard ” underlined in paragraph 1?

A．Shelter.

B．Message.

C．Answer.

D．Danger.

2. What does Trevor Kinley say about those wolves and lions?

A．They are stupid animals.	B．They are cautious learners.
C．They are very dangerous.	D．They are good at adapting.

3. What are the critics worried about?

A．There are too many bridges and tunnels.	B．Many animals will not use the crossings.
C．More killings might happen at the crossings.	D．Illegal hunting might be encouraged in the park.

4. How does the author feel at the end of the visit?

A．Concerned.

B．Disappointed.

C．Shocked.

D．Delighted.

6 . After a two-hour flight from Shanghai and an hour’s drive, I reached my destination: Jielingkou Village in Qinhuangdao City of Hebei Province, China. The tiny and ________ village is home to Shanhai Pass, where the Great Wall finally dives into the sea. During the Ming Dynasty (1368~1644), Jielingkou Village was considered an extremely important part of the Great Wall. But it slowly fell out of ________ and into disrepair—in modern China.

In 2018, an anti-poverty project began in the village, with the ________ of not only fixing the place up, but also ________ the living standards of the 200 people still living there. One of the ________ was to change all of the old homes into modern guesthouses. “This will allow city folks to enjoy the Great Wall in comfort,” said Ge, who was ________ the project.

But gaining the locals’ ________ took a lot of effort at the beginning. “Just two years ago, they weren’t ________ about the project at all,” Ge told me. “Seeing that they had to ________ water from a faraway well every day, we decided to build a water system that would send water to their homes. It’s one of the first, ________ we have made. It really ________ . Now some of those who were strongly against our project are now our greatest ________ .”

Ge said he hopes that as conditions are ________ becoming better in Jielingkou, some of the younger members of the village who left to seek opportunity in the cities will come back. “Already two university graduates who grew up in the village have returned to ________ the guesthouses. I hope more will be ________ by the potentials here soon.”

1.

A．rich

B．great

C．old

D．nearby

2.

A．reach

B．significance

C．view

D．control

3.

A．cost

B．knowledge

C．favor

D．goal

4.

A．increasing

B．ignoring

C．considering

D．deciding

5.

A．benefits

B．measures

C．disadvantages

D．conditions

6.

A．in charge of

B．in response to

C．in sight of

D．in search of

7.

A．independence

B．weight

C．trust

D．experience

8.

A．worried

B．curious

C．angry

D．enthusiastic

9.

A．carry

B．sell

C．boil

D．produce

10.

A．mistakes

B．apologies

C．improvements

D．documents

11.

A．hurt

B．helped

C．failed

D．escaped

12.

A．workers

B．fighters

C．managers

D．supporters

13.

A．occasionally

B．gradually

C．hardly

D．regularly

14.

A．clean

B．decorate

C．destroy

D．run

15.

A．attracted

B．monitored

C．postponed

D．welcomed

7 . Wu Ming, a young German born after 1995, is a big fan of Chinese culture. As he thought some diseases can’t be treated _______ with Western medicine, he decided to _______traditional Chinese medicine (TCM). In 2015, Wu came to Henan province, where a strong TCM culture can be _______. After a year of learning, he _______ the language barrier and started to learn Chinese medicine. Wu always _______ some Chinese herbal medicine by himself to know their flavours and effects, just like Shen Nong, a character in Chinese legend. In Wu’s opinion, TCM is one of the best-preserved _______ of Chinese culture.

Studying TCM also _______ Wu’s mind and lifestyle. He used to be _______ to electronic devices, playing video games every night. Instead of being trapped in the fast-paced but unhealthy daily _______, he now lives a(n) ________ and peaceful life, practicing good habits like drinking tea and reading.

Wu ________ what he has learned to help his family. He always provides his family members with some advice about staying fit after ________ their skin or tongues online. Over time, his family gradually began to understand his ________ for TCM.

Wu thinks there’s no big difference between China and Western countries. “________ comes from being out of touch”, said Wu. He plans to run a traditional Chinese clinic in Germany, which could serve as a(n) ________ between the two countries and publicize TCM and its culture.

1.

A．immediately

B．gradually

C．thoroughly

D．consistently

2.

A．depend on

B．dig into

C．look up

D．work out

3.

A．created

B．enjoyed

C．advanced

D．acknowledged

4.

A．overcame

B．seized

C．divided

D．shifted

5.

A．raised

B．sorted

C．cooked

D．tasted

6.

A．aspects

B．standards

C．themes

D．means

7.

A．enriched

B．secured

C．expanded

D．changed

8.

A．exposed

B．reduced

C．restricted

D．addicted

9.

A．businesses

B．recreations

C．routines

D．tasks

10.

A．balanced

B．wealthy

C．humble

D．efficient

11.

A．employs

B．promotes

C．outlines

D．conveys

12.

A．scanning

B．checking

C．exploring

D．comparing

13.

A．concern

B．wish

C．demand

D．passion

14.

A．Misunderstanding

B．Destruction

C．Stress

D．Failure

15.

A．source

B．basis

C．bridge

D．tool

8 . Cheating in sport is as old as sport itself. The athletes of ancient Greece used potions to strengthen themselves before a contest, and their modern counterparts have everything from anabolic steroids (类固醇) to growth hormones with which to_________their bodies. These days, however, such stimulants are_________, and those athletes must therefore face the challenges of anti-doping (反兴奋剂) agencies.

The agencies have had remarkable success. Testing for anabolic steroids was introduced in the 1970s, and the incidence of cheating seems to have_________dramatically as a result. The tests, however, are not entirely_________. And a study just published in the Journal of Clinical Endocrinology & Metabolism by Jenny Jakobsson Schulze and her colleagues at the Karolinska Institute in Sweden suggests that an individual’s genetic make-up could_________the tests in two different ways. One genotype, may allow athletes who use anabolic steroids to escape detection altogether. Another may actually be convicting (给……定罪) the innocent.

The test employed for testosterone (睾酮素) abuse usually relies on measuring the_________of two chemicals found in the urine (尿液): TG. and EG.. Any ratio above four of the former to the latter is considered_________and leads to more tests. However, the production of TG is controlled by a gene called UGT2B17. This gene comes in two varieties, one of which has a part missing and therefore does not work properly. A person may thus have none, one or two working copies of UGT2B17, since he inherits one copy from each parent. Dr. Schulze_________that different numbers of working copies would produce different test results. She therefore gave healthy male volunteers whose genes had been examined a single 360mg shot of testosterone — the standard dose for legal medical use — and checked their urine to see whether the shot could be_________.

The result was remarkable. Nearly half of the men who carried no functional copies of UGT2B17 would have gone undetected in the standard doping test.____________, 14% of those with two functional copies of the gene were over the detection threshold (门槛) before they had even received an injection. The researchers estimate this would give a ____________rate of 9% in a random population of young men.

Dr. Schulze also says there is substantial____________variation in UGT2B17 genotypes. Two-thirds of Asians have no functional copies of the gene which means they have a naturally____________ratio of TG to EG, compared with under a tenth of Caucasians (白种人) — something the anti-doping bodies may wish to take into account.

In the meantime, Dr. Schulz’s study does seem to offer innocents a way of____________themselves. Athletes who will travel to Paris for the Olympic games may be wise to travel armed not only with courage and the “spirit of Olympianism”, but also with a copy of their____________, just in case.

1.

A．disrupt

B．enliven

C．stretch

D．track

2.

A．broken down

B．torn apart

C．disapproved of

D．stocked up

3.

A．fallen

B．needed

C．recorded

D．secured

4.

A．scarce

B．reliable

C．convenient

D．universal

5.

A．verify

B．guard

C．evade

D．beat

6.

A．ratio

B．make-up

C．bulk

D．trace

7.

A．innocent

B．stubborn

C．outweighed

D．suspicious

8.

A．hypothesized

B．imposed

C．confirmed

D．explained

9.

A．signified

B．detected

C．mined

D．released

10.

A．In turn

B．Or rather

C．On the contrary

D．By contrast

11.

A．mass-testing

B．false-positive

C．anti-doping

D．drug-taking

12.

A．gender

B．behavioral

C．ethnic

D．indigenous

13.

A．low

B．stable

C．high

D．identical

14.

A．educating

B．concealing

C．defending

D．examining

15.

A．birth certificate

B．genetic profile

C．reference letter

D．medical report

9 . It was a normal morning in March. Sondra Artis had just _______ the last student on her route.

As heading towards the school, Sondra noticed a burning smell. She _______ the bus window to see if it was fogging up from condensation（凝结）or if it was _______ . When a student asked her what was _______ , she did her best to hide her growing _______ .

Sondra pulled into a parking lot and turned to face the 20 students on _______ . She reminded them of the evacuation（疏散） _______ they once performed and directed them to leave through the doors.

“I told the kids that, ‘You know, we _______ at the beginning of the year, but this is going to be _______ , so I need you to be calm,’” said Sondra.

The students hurried to the ________ as smoke began to fill the bus. They were ________ , but Sondra remained calm. When they were out, she went back onto the bus to make sure everyone left ________ .

Seconds after they all ________ , the bus caught fire. Another bus came to the ________ to take the children away, and Sondra was left ________ that everything worked out okay.

The bus can be ________ , but human life cannot. The parents were incredibly ________ for her grace under fire. She's being considered as a ________ , and many of her students would like to see her ________ for her heroism.

“Sondra is a very good bus driver，”said a student. “She ________ a reward.”

1.

A．sent away

B．turned down

C．seen off

D．picked up

2.

A．repaired

B．wiped

C．tapped

D．opened

3.

A．steam

B．smoke

C．fog

D．dust

4.

A．wrong

B．lucky

C．necessary

D．urgent

5.

A．anger

B．curiosity

C．embarrassment

D．worry

6.

A．duty

B．guard

C．board

D．vacation

7.

A．advantages

B．drills

C．signals

D．secrets

8.

A．met

B．separated

C．promised

D．practiced

9.

A．early

B．amazing

C．real

D．new

10.

A．exits

B．teacher

C．windows

D．lifesaver

11.

A．excited

B．tired

C．scared

D．optimistic

12.

A．hurriedly

B．safely

C．firstly

D．actively

13.

A．hid

B．landed

C．sat

D．escaped

14.

A．scene

B．school

C．park

D．destination

15.

A．searching

B．studying

C．thanking

D．counting

16.

A．replaced

B．exchanged

C．burnt

D．controlled

17.

A．eager

B．famous

C．grateful

D．qualified

18.

A．student

B．leader

C．driver

D．hero

19.

A．rewarded

B．excused

C．apologized

D．forgiven

20.

A．offers

B．deserves

C．demands

D．establishes

10 . The public must be able to understand the basics of science to make informed decisions. Perhaps the most dramatic example of the negative consequences of poor communication between scientists and the public is the issue of climate change, where a variety of factors has contributed to widespread mistrust and misunderstanding of scientists and their research. The issue of climate change also illustrates how the public acceptance and understanding of science (or the lack of it) can influence governmental decision-making with regard to regulation, science policy and research funding.

However, the importance of effective communication with a general audience is not limited to hot issues like climate change. It is also critical for issues such as the genetic basis for a particular behavior or the use of animal models because in these areas, the public understanding of science can also influence policy and funding decisions. Furthermore, with continuing scientific advances, more non-scientists will need to be able to analyze complex scientific information to make decisions that directly affect their quality of life.

Science journalism is the main channel for the popularization of scientific information among the public. Much has been written about how the relationship between scientists and the media can shape the efficient communication of scientific advances to the public. Good science journalists are specialists in making complex topics accessible to a general audience, while sticking to scientific accuracy. Unfortunately, pieces of science journalism can also oversimplify and generalize their subject material. As a result, the basic information conveyed is difficult to understand or obviously wrong.

Even though scientists play a part in conveying information to journalists and ultimately the public, too often the blame for ineffective communication is placed on the side of the journalists. I believe that, at least in part, the problem lies in places other than the interaction between scientists and members of the media. It exists because we underestimate how difficult it is for scientists to communicate effectively with a diversity of audiences, and most scientists do not receive formal training in science communication.

1. What does the example of climate change mainly serve to show?

A．Adequate government funding is vital to scientific research.

B．Government regulation helps the public understand science.

C．The public’s scientific knowledge can influence policy making.

D．There is widespread public mistrust and misunderstanding of scientific work.

2. Why is it important for scientists to build a good relationship with the media?

A．It helps scientists to build a better public image.

B．It helps them to effectively popularize scientific information.

C．It enables scientists to better apply their findings to public health.

D．It enables the public to develop a positive attitude toward science.

3. What is the problem with some pieces of science journalism?

A．They give inaccurate or complicated information.

B．They oversimplify people’s health problems.

C．They fail to mention the scientific advances.

D．They lack detailed information about scientific research.

4. According to the writer, what should scientists do to communicate to the public more effectively?

A．Interact more with the media.

B．Give training to science journalists.

C．Improve their communication skills.

D．Arouse the public’s interest in science.