You don’t have to break your back to create a...

You don’t have to break your back to create a yard that’s both beautiful and kind to Mother Nature. These environmentally smart ideas will turn your home turf(草地)into a little slice of Eden. 1.

Let the grass grow. Cut grass less often, so it gets a few inches longer than you’re used to. 2. That’s because roots will grow deeper and grass thicker, which means fewer pests, less disease, and a decreased need for chemical intervention.

Water the grass right way. Water before 10 a. m. , when the air is cool and not as much moisture will be lost to evaporation. 3. Water near the base of plants, slowly delivering the good stuff right to the roots. For lawns, water long and deep once a week.

Get keen on composting(制堆肥). Compost isn’t called gardener’s gold for nothing. It keeps kitchen leftover out of landfills and enriches soil with much-needed nutrients. 4. Veggie and tea bags, eggshells, dry leaves, and untreated grass clippings are all fair game.

5. Honeybees help pollinate(授粉) 75 percent of our flowering plants and nearly 75 percent of our food crops. There is increasing evidence that many of the vital pollinators are in decline. Creating a garden that includes plants that flower at different times of the year will benefit pollinators throughout the growing season. Whenever possible, choose native plants with a variety of flower colors and shapes.

A.Many will save your money, too.

B.Dry leaves add nutrients to the soil.

C.Give bees the green-carpet treatment.

D.Make the backyard as beautiful as possible.

E.Watering in late afternoon is the next best option.

F.It also reduces dependency on chemical fertilizers.

G.It will help it survive dry periods of time in warmer months.

高三英语七选五中等难度题查看答案及解析

Don’t like seeds in your tomatoes? You might be pleased to know that seedless ones have been created by gene editing.

This could create a wide range of seedless fruits, but few may ever be seen in the supermarket if regulators decide to treat gene-edited crops in the same way as genetically engineered ones.

Several seedless fruits, from bananas to grapes, are already available, but have mostly come about by luck rather than design. And although there are a few seedless varieties of tomatoes, they’ve taken researchers many years to create.

Now it can be done very quickly, as Keishi Osakabe at Tokushima University in Japan has shown. His team used the CRISPR gene editing technology to make fruits develop even though no seeds had begun to form. “We haven’t tasted them yet, but in theory they should taste the same,” says Osakabe.

There have been a few efforts to create seedless tomatoes using earlier genetic-engineering techniques. These methods take longer time compared with CRISPR.

Some “seedless” fruits just have very small seeds, and still require pollination (授粉). But completely seedless fruits like the edited tomato do not require pollination at all. Such plants could improve food security by reducing our reliance on smaller bee populations, says Saul Cunningham at the Australian National University. Many fruit growers buy bees to pollinate their crops.

There is a deficiency for farmers, however. Seedless plants usually have to be grown from cuttings, which involves more labor than planting seeds.

CRISPR could be used to develop other types of fruit that don’t require pollinator, as well as introduce beneficial mutations (突变), says Osakabe.

But to make it on to the supermarket, gene-edited plants may have to meet the same standards as genetically engineered plants, which would greatly increase costs. Some argue chat since gene editing is used to introduce mutations already found in some of the plants we eat, it should not require such strict regulations.

1.What has been the problem with tomatoes created in the past?

A.Their taste was not very good. B.They still had a few big seeds.

C.Their genes could not be recognized. D.They took quite a long time to create.

2.What did Keishi Osakabe’s team do?

A.They edited tomatoes’ genes.

B.They changed the taste of tomatoes.

C.They made seedless bananas and grapes.

D.They created genetically engineered tomatoes.

3.Why is CRISPR better than previous methods?

A.It will still require pollination.

B.It will remain unaffected without bees.

C.It will reduce people’s reliance on food security.

D.It will make many growers buy bees for pollination.

4.What does the underlined word “deficiency” in Paragraph probably mean?

A.Danger. B.Disadvantage.

C.Benefit. D.Solution.

高三英语阅读理解中等难度题查看答案及解析

“Sara, don’t forget your promise to me that you will mow (割草) Mrs. Martin’s yard this weekend,” said Dad. “Don’t let me down.”

Sara was the oldest child in the family, and one of her chores was to mow their yard. Mrs. Martin, their ______ neighbor, was unable to take care of her yard in her 70s, so Sara’s dad had ______ Sara for this job. ______ Mrs. Martin’s yard was not big, Sara knew the job would go quickly. However, she still disliked her dad’s ______.

“Why didn’t you ask me first?” Sara had ______.

“Did you ask me first when you volunteered me to be in the school festival last fall?” asked Sara’s father.

“Well, no, I didn’t ask you first, ______ you would have done those things anyway. You’re always ______ to help.”

“I ______ when I can.” Dad answered. “Sara, we have known Mrs. Martin for a very long time. She has often ______ our family. Now we can do something for her. ______, the feeling you get from helping someone makes you ______ who is really helping whom.”

“I don’t know, Dad,” said Sara. “The only feeling I get from mowing our yard is ______.”

“Just you wait and see,” said Dad

After breakfast, Sara made her way to Mrs. Martin’s yard. She was good at her job and soon had Mrs. Martins yard looking ______. Mrs. Martin came outside with a big glass of orange juice and ______ it to her. Sara stopped her work and ______ enjoyed the drink, while Mrs. Martin talked to her about all of the flowers in her yard. Seeing the ______ in Mrs. Martin’s eyes, Sara began to understand how much the yard ______ to Mrs. Martin.

After finishing her drink, Sara returned to work with a new ______. A warm feeling began to ______ through her body. Her dad was ______. It was hard to tell who was helping whom!

1.A. strange B. new C. aged D. faithful

2.A. guided B. volunteered C. ordered D. forced

3.A. Once B. Since C. Unless D. Although

4.A. promise B. argument C. permission D. introduction

5.A. replied B. suggested C. complained D. announced

6.A. but B. so C. or D. for

7.A. proud B. willing C. afraid D. fortunate

8.A. choose B. succeed C. hesitate D. try

9.A. respected B. changed C. protected D. helped

10.A. Besides B. Instead C. Therefore D. Otherwise

11.A. imagine B. explore C. worry D. wonder

12.A. scared B. moved C. tired D. relaxed

13.A. tidy B. alive C. empty D. messy

14.A. threw B. delivered C. offered D. sold

15.A. eagerly B. generously C. carefully D. gratefully

16.A. determination B. peace C. curiosity D. joy

17.A. related B. meant C. belonged D. referred

18.A. attitude B. wisdom C. inspiration D. expectation

19.A. exist B. fly C. spread D. break

20.A. unusual B. right C. serious D. helpful

高三英语完形填空中等难度题查看答案及解析

If you've always wanted to start your own herb or vegetable garden but don't have the yard space or the "green thumb" to pull it off, there's now another option. The OGarden Smart is an indoor gardening system that grows up to 90 plants at one time—20 of which are safe to eat.

Strawberries, green beans, peppers, green onions, and cherry tomatoes are just a few of the fruits and vegetables the OGarden can grow. Up to 30 potted plants can be placed on a lower shelf, where the seeds are allowed to germinate (发芽). Once they germinate, the plants can then be moved to the turning wheel up above, which holds up to 60 plants at a time. It takes about 30 to 40 days to harvest the produce, depending on the type of plant grown.

The system is self-watering and uses automatic LED lights to provide the right amount of sunlight, no matter what season it is. The only work that's required is planting the seeds and refilling the water tank once a week.

The OGarden Smart is the second product introduced by company co-founders Pierre Nibart and Pierre-Etienne Bourget, of Quebec, Canada. The original OGarden appeared in 2017, and the Smart upgrade adds a few new features, including automatic watering, automatic LED lighting, and a water warning system. Some reviewers of the original OGarden commented that the system is easy to use, and that the vegetables taste better than store-bought produce.

The OGarden Smart will set you back $859 Canadian dollars (about $650 USD) if you order it on Kickstarter at a discounted rate, but the company's founders are quick to point out that it will help you save money in the long-run. The system lets you grow organic (有机的) produce at a small part of the price you'd pay at your local grocery store.

To see some of the buying options available, check out the project's Kickstarter page. Any orders that are placed will be delivered this May.

1.What is the OGarden Smart?

A.A self-watering system.

B.A water warning system.

C.An indoor gardening system.

D.An automatic lighting system.

2.What can you learn about the OGarden Smart from the passage?

A.It can be used all year round.

B.It grows up to 60 plants at a time.

C.It is designed for people who have a yard.

D.It moves the plants from the shelf automatically.

3.The OGarden Smart can help you save money in the long-run mainly because of its _______.

A.automatic upgrade

B.free after-sales service

C.low energy consumption

D.harvest of organic produce

高三英语阅读理解中等难度题查看答案及解析

Don’t forget to put the tools back where they were after you have finished your work,　 　 　　 ?

A. do you　　 　 B.don't you

C. will you　　 D. won’t you

高三英语单项填空中等难度题查看答案及解析

—It is said that you’ve moved to your new campus. Do you have a big library?

—No, we don’t. At least _________ yours.

A. as big as            B. not bigger than

C. bigger than          D. not smaller than

高三英语单项填空中等难度题查看答案及解析

You should try your best to create your own family library so that you and your family are always learning. "It is a great mistake to think that education is finished when young people leave school. Education is never finished even if you grow older," said Mrs Child in The Mother's Book. "Collecting a library of books in your home is really helpful to your family. ”

"What is really interesting about having so many books in your home is that a book you purchase has a chapter about the deeper knowledge of your favorite subject at school," said a university graduate. Researchers in a study tries to identify what parents do has an influence on how well their children do on standardized tests. One positive aspect they find is the availability of a large number of books at home. This has a stronger connection, especially when you read to your children every day. The more books your older kids have access to at home, the more likely they are just to be reading for fun, rather than having to wait for weekly trips to the library.

John Henry, one educated parent, said, "I have been homeschooling my children using the philosophy of A Thomas Jeffer son Education. This philosophy of learning is based on the reading of classic books. ” Clinton Fadiman said, "When you reread a classic, you do not see more in the book than you did before； you see more in you than before. " Classic books also make you smarter and wiser! The wisdom comes in the examples in the lives of the characters.

"It is within your power to guide your youth in their reading and to cultivate in their hearts a desire for good books. It is the most unfortunate if a person is not possessed with the desire for good reading. The reading habit, like charity, should begin at home," said Mrs Child.

1.What does the author mainly want to show in paragraph 2?

A.Kids don't need to go to the library any longer.

B.Parents should set a good example at home.

C.It's necessary to create a family library.

D.It's important to let kids pass standardized tests.

2.How does the author explain the effect of reading classic books at home in paragraph 3?

A.By quoting others ’words. B.By questioning.

C.By imagination. D.By analyzing research data.

3.What can we learn from what Mrs Child said?

A.East or west, home is best.

B.One is never too old to learn.

C.He who makes no mistakes makes nothing.

D.Charity is the soul, rather than the virtues of hand.

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

A.Where to Store Your Favorite Books at Home?

B.When to Read the Classic Books to Your Children?

C.Which Is Better, a Home Library or a Public Library?

D.Why Not Have Your Own Library of Books at Home?

高三英语阅读理解中等难度题查看答案及解析

Don’t trust such people _____ praise you to your face but speak ill of you behind your back.

高三英语单项填空困难题查看答案及解析

Don’t trust such people _____ praise you to your face but speak ill of you behind your back.

高三英语单项填空中等难度题查看答案及解析

When you get in your car, you reach for it. When you're at work, you take a break to have a moment alone with it. When you get into a lift, you play with it.

Cigarette? Cup of coffee? No, it's the third most addictive thing in modem life, the cell phone. And experts say it is becoming more difficult for many people to curb their longing to hug it more tightly than most of their personal relationships.

The costs are becoming more and more evident, and I don't mean just the monthly bill. Dr.Chris Knippers, a counselor at the Betty ford Center in Southern California, reports that the overuse of cell phones has become a social problem not much different from other harmful addictions: a barrier to one-on -one personal contact, and an escape from reality. Sounds extreme, but we' ve all witnessed the evidence: The person at a restaurant who talks on the phone through an entire meal, ignoring his kids around the table; the woman who talks on the phone in the car, ignoring her husband; the teen who texts messages all the way home from school, avoiding contact with kids all around him. Jim Williams, an industrial sociologist based in Massachusetts, notes that cell - phone addiction is part of a set of symptoms in a widening gulf of personal separation. He points to a study by Duke University researchers that found one-quarter of Americans say they have no one to discuss their most important personal business with. Despite the growing use of phones, e - mail and instant messaging, in other words, Williams says studies show that we don't have as many friends as our parents. “Just as more information has led to less wisdom, more acquaintances via the Internet and cell phones have produced fewer friends,” he says.

If the cell phone has truly had these effects, it's because it has become very widespread. Consider that in 1987, there were only l million cell phones in use. Today, something like 300 million Americans carry them. They far outnumber wired phones in the United States.

1.From the first two paragraphs, we can know ________．

A．cell phones have become as addictive as cigarettes

B．cell phone addiction is good for building personal relationships

C．people are longing to have their own cell phones

D．cell phones are the same as cigarettes

2.Cell phone addiction has caused the following effects EXCEPT________.

A．a barrier to personal contact               B．fewer friends

C．an escape from reality                    D．a serious illness

3.The underlined word "curb" in Paragraph 2 means “________．”

A．ignore            B．control           C．develop           D．rescue

4.The example of a woman talking on the phone in the car supports the idea that________.

A．women Use cell phones more often than men

B．talking on the phone while driving is dangerous

C．cell phones do not necessarily bring people together

D．cell phones make one - on - one personal contact easy

5.Which of the following is the best title for the passage?

A．Cell phones Are the New Cigarettes

B．Cell phones Are Harmful to the Society

C．The New Report about the Cell phone

D．The Disadvantages of the Cell phone

高三英语阅读理解中等难度题查看答案及解析