1 . Scientists have discovered how plants manage to live alongside each other in places that are dark and shady. Plants in the deep darkness of a thick forest, where natural supplies are not very great in amount, won’t attempt to top their neighbors in growth as those in moderate (中度的) shade do. In deep shade conditions, it would be a waste of energy and harmful to survival because green shoots would never be able to top their larger neighbors in growth.

So how do plants prevent such growth in deep shade conditions? The secret lies in the clocks insides them, say scientists from the John Ines Centre and the University of Bristol.

They have discovered that when plants notice deep shade, this changes the expression of genes parts of the circadian clock (昼夜节律时钟) — the inner daily timer found in plants and other things. These clock parts perform an additional role in preventing plants from lengthening and overtopping neighbors.

The work identifies a previously unknown role of the circadian clock in controlling plant development and the findings may have possible effects on both natural plant populations and crops. Professor Antony Dodd of the John Innes Centre said, “The biological clock of plants plays a big part in their development and fitness. This work casts new light on a new role of the circadian clock in adapting plants to competition with other plants in their environments.” “It also gives us new insights into how plants adapt to very deep shade, where resources are very limited,” said Professor Kerry Franklin at the University of Bristol.

This work provides evidence for the firmness of the circadian clock in stressful environments, and information that may be useful in developing new generations of crops in a challenging climate.

1. What do plants normally do in moderate shade?

A．Struggle to preserve energy.	B．Compete for limited resources.
C．Try to outgrow their neighbors.	D．Depend on each other to survive.

2. How does the circadian clock affect plants?

A．By changing their gene expression.	B．By making them realize light change.
C．By helping them adapt to the darkness.	D．By controlling their growth in deep shade.

3. Why does the author write the text?

A．To share a new discovery about plants.	B．To introduce the role of the circadian clock.
C．To explain plants secret of living in forests.	D．To compare plants living in certain condition.

4. What is the best title for the text?

A．How plants face a challenging climate

B．Why plants respond to different shade levels

C．Why the circadian clock is vital to plants' growth

D．How plants become good neighbors in times of stress

2 . When I was growing up in Minnesota, Joe Versus the Volcano was one of my favorite movies. I ________ to be swept away to an island. But as I found myself in La Palma ________ on the Cumbre Vieja eruption in the Spanish Canary Islands, I quickly ________ that there’s nothing romantic about volcanoes or being trapped on an island.

I had come ________ — an N95 mask, baseball cap, and a swimming mask. But nothing could prepare me for the invasiveness of the volcanic ________ . It fell from the sky like a rainstorm, lining streets, ________ doorways and windowsills, and filling my ears.

It wasn’t long before the airlines canceled all flights. When ________ began panic, buying all the ferry tickets as I was interviewing residents about their futures, I realized I had ________ the boat.

For two days, I wandered ________ streets awaiting the resumption of travel, carrying a backpack and feeling progressively stuck and at times ________ . And then I realized I was being given the ________ for deeper insight. Here I was ________ what the local people were feeling: uncertainty, frustration, and tiredness from living next to an erupting volcano with no end in sight.

Like the people of La Palma, I ________ others to get me through — from the English woman who ________ me a bag of oranges from her garden to the minister of the church who let me use the bathroom after being trapped at the top of a mountain.

As I finally left, I realized how ________ I was to have experienced the humanity of the people in La Palma in the face of crisis. I know it’s what will pull them through it.

1.

A．seemed

B．pretended

C．refused

D．longed

2.

A．recording

B．checking

C．reporting

D．focusing

3.

A．guessed

B．realized

C．agreed

D．imagined

4.

A．excited

B．disappointed

C．prepared

D．confused

5.

A．rock

B．ash

C．lava

D．smoke

6.

A．covering

B．blocking

C．breaking

D．destroying

7.

A．managers

B．actors

C．tourists

D．residents

8.

A．driven

B．forgot

C．cleaned

D．missed

9.

A．broad

B．beautiful

C．empty

D．crowded

10.

A．panicked

B．satisfied

C．relaxed

D．inspired

11.

A．ability

B．chance

C．talent

D．right

12.

A．studying

B．noticing

C．writing

D．experiencing

13.

A．relied on

B．appealed to

C．dealt with

D．believed in

14.

A．lent

B．gave

C．sent

D．sold

15.

A．upset

B．smart

C．anxious

D．grateful

3 . Most young people are always on their phones, which may upset many people. ___________, a group called Girl Scouts are receiving _________ for setting up their first walk-in clinic for elderly people, who have difficulty understanding how to ___________ the secrets of their smart phones.

Each teen spent at least an hour of one-on-one time with their oldsters. Based on their _________ knowledge, each Girl Scout was assigned to ___________ different aspects of Android and Apple phones.

Some of the oldsters actually wanted to take part in e-commerce (电子商务), and needed help to _________ a payment account on their smart phones while others simply had _________ when learning how to send messages to their family members. "I was teaching this older woman how to _________, and the first thing she did was to send a message to her daughter,” one of the Scouts said. “How ___________ it was! It just made me feel really, really happy.”

In addition to arranging group lessons for all of the seniors to ____________ together at the end of the clinic, the youngsters even printed out brochures and guides for the seniors to take home in case ____________ seniors would encounter problems with their smart phones in the future.

The eighth graders earned their “Silver Award,, for their job. After experiencing the ____________ of their project, the girls hope to organize more ____________ in the near future. “Those girls were just great,” said Nancy, a great-grandmother who once ____________ the clinic. “They were ready for us and had a very mature attitude about answering our questions, and they ______________ the praise.

1.

A．Otherwise

B．Therefore

C．However

D．Besides

2.

A．service

B．praise

C．invitation

D．donation

3.

A．keep

B．untie

C．share

D．unlock

4.

A．technological

B．medical

C．psychological

D．physical

5.

A．record

B．teach

C．recall

D．investigate

6.

A．get back

B．set up

C．check out

D．pay off

7.

A．patience

B．luck

C．fun

D．trouble

8.

A．write

B．phone

C．text

D．read

9.

A．sweet

B．simple

C．rare

D．common

10.

A．play

B．live

C．talk

D．review

11.

A．amazed

B．experienced

C．confused

D．respected

12.

A．success

B．arrangement

C．change

D．pressure

13.

A．performances

B．clinics

C．clubs

D．competitions

14.

A．organized

B．managed

C．visited

D．funded

15.

A．needed

B．refused

C．enjoyed

D．deserved

4 . Dutch artist Daan Roosegaarde’s latest project, GROW, involved installing (安装) thousands of blue, red and purple LED lights in a 2-hectare field of leek (韭菜) for both artistic and practical purposes. People driving by the town of Lelystad, in central Netherlands, at night, this time of year are treated to a fantastic sight—a 20,000 square meters field of leek glowing blue, red and purple. Thought up by Studio Roosegaarde, the unique artistic installation is designed both as an honor to Dutch farmers and as an inspiration for them to experiment with artificial light in outdoor farming. Daan Roosegaarde also wants GROW to send a hopeful light to people in these trying times, giving new meaning to the word “agriculture” as a living cultural artwork.

Nighttime ultraviolet (紫外线的) light has been used in glasshouse agriculture for a while now, especially in places where direct sunlight is scarce, but its use in outdoor fanning has so far been very limited. Ultraviolet light is known to help plants grow better, but Studio Roosegaarde is also testing a theory according to which certain wavelengths of ultraviolet light could reduce the need for pesticides by up to 50%.

“So we started to scan the plants with these wavelengths of light and then suddenly it started to dance, the light,” Daan Roosegaarde said. “You had these huge fields of fireflies, as if they were, and we were testing it and the magic started kicking in, so I think that’s when the worlds of science, art and design meet and enhance each other.” Solar-powered LEDs give ultraviolet light onto the leek plants, thus adding the effect of natural sunlight after sunset, and creating a wonderful sight at the same time.

GROW is currently only visible near Lelystad, but Roosegaarde plans to take the visually-impressive installation on the road to over 40 countries. Each country will have its own local or national crop and its own unique light recipe. Over the years, Studio Roosegaarde has created a number of fascinating installations, like the glow-in-the-dark bicycle path powered directly by the sun.

1. What does GROW probably refer to?

A．A project creating artworks.	B．A project installing LED lights.
C．A project producing pesticides.	D．A project building glasshouses.

2. What does the underlined word “scarce” in paragraph 2 probably mean?

A．Sufficient.	B．Enough.
C．Steady.	D．Lacking.

3. What is the third paragraph mainly about?

A．What artistic effects were caused by the project

B．Why the project GROW was conducted.

C．How Roosegaarde’s design idea came up.

D．How Roosegaarde’s theory was tested.

4. What does Roosegaarde think of the future of GROW?

A．It is promising.	B．It is pressing.
C．It is challenging.	D．It is demanding.

5 . The COVID-19 epidemic(新冠疫情)is sill spreading rapidly throughout the world. Luckily, it is under control in China with the efforts of our government and all the people. However, we should still be careful in our daily life. There’re some rules for us to follow.

1. Get vaccinated (打疫苗)

Since there’s still no special medicine to cure(治愈) COVID-19,     1    The government is providing available vaccine(疫苗)for everyone in our country. If you’re over 18 years old and in good health, you can get vaccinated near your community.     2    

2. Wear masks(口罩)

People have been used to wearing masks since the epidemic broke out. It is summer now, maybe wearing masks in hot weather makes you feel uncomfortable. However,     3    

So whenever you go out, don’t forget to put on your mask. You may look cooler with a mask on!

3. Wash your hands

    4     Especially when you get home from school or work, or return from any other public places, the first thing you should do is to turn on the tap(水龙头), pick up the soap and wash your hands completely.

4. Keep safe social distance(距离)

You’d better not go to crowded places. The summer vacation is beginning. If you have to go to the stores, movies, parties, supermarkets, etc, besides wearing masks, remember to keep social distance.     5    

Anyway, take good care of yourself and live a safe and happy life!

A．Wash your hands as often as possible.

B．But you have to pay!

C．we don’t need to do anything about it.

D．What’s more, it is free!

E．Avoid getting too close to other people.

F．the vaccine is the most important way to prevent it.

G．it is till a good way to stop the virus(病毒)from spreading among people.

6 . 阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。

Johnson lived alone in a small town, Salem. Once he suffered a minor stroke (中风). He didn't usually go outside of his home unless it was to get his favorite food: pizza. He only ordered from Domino’s Pizza, and due to him frequently ordering, the staff was well familiar with his name.

Although Johnson was a loyal customer, the staff had never heard his voice or seen is face. It was only the delivery drivers who caught a glance of the man. Many neighbors went on to say that he just liked to keep to himself.

The manager of Johnson’s local Domino’s Pizza, Mary, said that he was always so polite to the delivery staff. Throughout the seven years of him placing orders at and supporting the particular Domino’s store, there had never been a problem.

And so none of the employees at Johnson's local Domino’s seemed to notice anything unusual the first couple of days. However, this quickly changed when Mary realized that they hadn't had an order from Johnson in a while. Johnson was considered to be one of the branch's most loyal customers. It was unusual that Johnson hadn't ordered anything for more than 12 days. They felt something might be off. A member of the staff, Tom, was sent to Johnson’s house to see if they could notice anything unusual.

As Tom approached Johnson’s house, he was relieved to see that the lights were on. Johnson wasn't answering the door, even though the lights and TV were on in his room. Tom decided to knock once again and called him on his phone, but there was no answer. There was a horrible feeling in the pit of his stomach. Tom decided to call the police. After hearing the situation, the police arrived quickly. They knocked on the door just as Tom had, but there was no answer once again. Just then one of the officers heard a faint voice coming from inside of the home.

注意：
1. 续写词数应为150词左右；
2. 请按照如下格式在答题卡的相应位置作答。

The voice was calling out for help.

__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

In the hospital, Johnson was getting better after the stroke.

__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________