1 . A tornado is a rotating _________of air from a thunderstorm to the ground.The most _________has winds of more than 400 kilometres per hour.

Tornadoes can _________ cars，trains and even houses and put them down in the next street or _________ in the next town.They can take the fur_________the back of a cat.They destroy houses，but _________the furniture inside exactly where it was.

_________，there are 800 tornadoes in the US each year，_________ about 80 deaths and 1,500 injuries.The worst tornado of all time occurred in 1925，_________ three US states.By the time it ended，more than 700 people had been killed and 2,700 had been __________.

__________ are strong tropical storms.They cause huge waves，heavy rain and__________ and usually hit the east coast of the US from Texas to Maine.The__________ hurricane of all time occurred in 1,900.The disaster killed 6,000 people in a __________of 37,000 and destroyed 3,600 buildings.

Charles Coghlan，an Irish actor，__________to New York and became famous there.Then he moved to Galveston，__________ he died in 1899，a year before the hurricane__________.The cemetery where he was __________was destroyed by the hurricane and his coffin__________ in the sea.Eight years later，the coffin was found by fishermen in the east of Canada.The Gulf Stream had __________it 3,000 kilometers up the eastern US coast to Canada.Coghlan traveled to Canada after he had been buried in Texas!

1.

A．mixture

B．form

C．movement

D．column

2.

A．important

B．fascinating

C．violent

D．marvelous

3.

A．pick up

B．take up

C．put up

D．cut up

4.

A．yet

B．still

C．even

D．already

5.

A．away

B．on

C．off

D．out

6.

A．leave

B．keep

C．put

D．make

7.

A．In common

B．On average

C．In fact

D．At least

8.

A．caused

B．causing

C．leading

D．brought

9.

A．affecting

B．influencing

C．attracting

D．destroying

10.

A．wounded

B．injured

C．claimed

D．recovered

11.

A．Hurricanes

B．Tornadoes

C．Earthquakes

D．Storms

12.

A．drought

B．floods

C．rainstorms

D．currents

13.

A．worse

B．most

C．worst

D．least

14.

A．area

B．population

C．region

D．district

15.

A．travelled

B．moved

C．visited

D．returned

16.

A．where

B．there

C．which

D．on which

17.

A．disappeared

B．appeared

C．struck

D．caught

18.

A．lying

B．laid

C．buried

D．died

19.

A．taken up

B．ended up

C．came up

D．went up

20.

A．carried

B．brought

C．taken

D．sent

2 . Microplastics are tiny bits or threads of plastic, often too small to be seen. In recent years, microplastics have been found almost everywhere, from the North pole to Antarctica, from the top of Mount Qomolangma to the deepest point in the sea.

In a recent study led by a group called Ocean Wise, researchers made four trips across the Arctic Ocean. They took 71 samples from between 10 and 26 feet below the ocean’s surface, and 26 more samples from more than 0.6 miles below. They found microplastics in all but one, with an average of about 40 microplastic particles in every cubic meter. To identify the particles they found, the scientists used a tool based on infrared (红外的) light. Over 92% of the microplastics found were small threads, called microfibers. About 73% of these fibers were made of a plastic known as polyester(聚酯), which exactly matched polyester used in clothing.

The study also found far more microfibers near the Atlantic side of the Arctic Ocean than near the Pacific side. The fibers on the Atlantic side were also newer. The team believes this suggests that the fibers come from Europe and North America. Peter Ross, who led the research, said, “With these polyester fibers, we’ve created a cloud throughout the world’s oceans.”

Most samples were taken from an ocean layer where lots of sea life finds food. The scientists believe this means that many kinds of sea life, from the smallest to the largest, are likely to be affected by the pollution.

So how do these microfibers get into the sea? They break off when clothes are washed and emptied by washing machines into underground pipes. One recent study suggested that laundry from the US and Canada carries around 7,716,000 pounds of plastic microfibers into the sea every year.

1. Which is true about the study according to paragraph 2?

A．All the samples taken contained microplastics.

B．Polyester accounted for most of the microfibers.

C．The head of the research group is called Ocean Wise.

D．Most samples were collected from over 0.6 miles below.

2. What can we infer from Peter’s words?

A．These polyester fibers look like clouds.

B．The world’s oceans are linked together.

C．The pollution has reached a serious level.

D．The food chain of the sea has been damaged.

3. Which one might be the source of the microfibers?

A．Plastics.	B．Ocean layers.
C．Washing machines.	D．Laundry.

4. Which of the following is the best title for the text?

A．Efforts Made to Protect the Arctic Ocean

B．Reduction in the Consumption of Plastic Products

C．Microplastics Found All Through the Arctic Ocean

D．Reasons Behind the Pollution of the Arctic Ocean

3 . Stefani Shamrowicz lives in Colorado. The 24-year-old woman has spent 23 days picking up126 bags of rubbish across the country

Having over a month off from her job at a campus recreation center, Stefani Shamrowicz decided to take a trip to help clean up the environment.

She's now driven over 70 hours through Colorado, New Mexico, Arizona, Texas, Louisiana Florida,Georgia,Tennessee,Kentucky，Ohio，Pennsylvania，and New York-cleaning up everything from pee-filled bottles to lawn ornaments. About 80 percent of the rubbish was drinking bottles. Stefani said she had found a few fast-food toys and a tire with a pair of cowboy boots in it and her aim wasn't to shame, but rather encourage people to do what they can

Collecting anywhere from one to 16 bags at a time, Stefani's been discouraged. She felt she wasn't doing enough. She said there was a place that had an ocean of rubbish and she pushed out four bags, but then she broke down because she realized how much rubbish there was and it felt like four bags didn't do anything. But she remembered to just do what she could, especially since she had gone beyond her goal. She said she dedicated that to her parents because they raised her to be an independent person and had been very supportive on the trip

People donated $10 a bag for Stefani to clean up in their name, which she uses for lodging and gas. The person's name is written on how many bags they've donated towards and Stefani posted a picture on her Instagram when they were filed, thanking them for helping clean up the cit she was in.

People online and in person have responded positively to the project. Stefani recalled people sent her pictures of bags of trash they picked up. Once, when she started doing a bag on the beach in Florida,two ladies saw her and started helping her fill the bag.

With her job resuming June 1, Stefani is now back home but she has so many good things to say about her unique U.S.road trip.There's litter everywhere, so I'm just happy to be able to make a little bit of an impact everywhere I go. Cleaning up this litter is a huge thank you for all the joy and good times national parks and nature in general has brought to my life,”she said.

1. Why did Stefani drive ower70 hours across the USA?

A．To call on people to donate money

B．To earn a living by classifying rubbish.

C．To encourage people to protect the environment.

D．To enjoy the scenery of the national parks and nature

2. What is the influence of Stefani's cleaning up rubbish?

A．People offered their help along her journey

B．Her parents make joint efforts to support her.

C．People begin to donate their money for her project.

D．Many people take action to clean up the environment

3. What's the attitude of the author towards cleaning up the litter?

A．Discouraged.

B．Anxious

C．Surprised.

D．Pleased.

4. What does the passage want to tell us?

A．Cleaning up rubbish is a tough task.	B．A kind act can make a big difference
C．Believing in oneself is the key to success.	D．One will realize his dream if he persists in it.

4 . The world has been troubled by COVID-19 for over a year. Masks (口罩) are really important to everybody during the pandemic (疫情). We all wear masks every day.     1    . This could become a big environmental problem.

In a study, scientists from the US and Denmark said that people around the world are now using 129 billion face masks every month.    2    . What a large number it is!

According to Elvis Genbo Xu from the University of Southern Denmark, disposable (一次性的) masks are plastic products.     3    . People think that they are a new kind of pollution.

    4    . But we can’t recycle masks. Scientists have called for setting up mask-only trash cans (垃圾箱) to deal with mask waste.     5    . We believe that we can solve this problem in the near future though there is still a lot of work to do.

A．They also suggest that we use more reusable cotton masks.

B．Other plastic products are often recycled.

C．But we have to throw them away after a short time.

D．That is to say, we use 2.8 million masks every minute!

E．These used plastic masks can not only pollute the earth but also oceans.

5 . The desert locust (蝗虫) is the most dangerous migratory pest with a huge appetite unmatched in the insect world. In just one day, a swarm of locusts the size of Paris could consume the same amount of food as half the population of France. They annually reproduce, concentrate and then form swarms that can move up to 150 kilometers per day.

To control these swarms, some experts think drone (无人机) technology could provide survey and control teams with an inexpensive and efficient method of searching for these destructive insects.

Unmanned aerial vehicles (UAVs) — also known as drones — could be used to automatically collect high-resolution imagery of green, vegetated areas potentially affected by locusts.

Controlled by a hand-held tablet, the UAV would follow a pre-programmed flight path, covering a 100 kilometer survey radius to collect data. Then the survey teams use the data to identify areas that seem most likely to harbor locusts and travel directly to suspicious locations. Once the team reaches such an area, the UAV could be launched to fly overhead and identify other nearby areas affected by locusts that may require treatment. A separately controlled UAV could then be used to administer pesticides directly onto the locust concentrations. UAVs could also be used to check for locusts in areas that are insecure or cannot be accessed by ground teams.

Pest control operations would become safer, as human operators would no longer be exposed to potentially dangerous pesticides while getting rid of the insects. They would also become more effective, since drones would be able to spray pesticides precisely.

The Food and Agriculture Organization (FAO) of the United Nations is currently working with university researchers and private sector partners in Europe to address challenges of drone technology concerning design, endurance, power, and detection of green vegetation and locusts. The FAO remains hopeful that within five years, UAVs will play an essential role in protecting food supplies and livelihoods from the desert locust, as part of the fight against global hunger and poverty.

1. What does the author try to express by mentioning France in Paragraph 1?

A．Desert locusts are a great threat to food supply.

B．France is one of the disaster areas affected by desert locusts.

C．It’s hard to deal with the problems caused by desert locusts.

D．Desert locusts are a migratory pest that can travel extremely fast.

2. What’s the fundamental purpose of drone technology?

A．To detect desert locusts.	B．To locate the affected locations.
C．To kill desert locusts effectively.	D．To free operators from chemicals.

3. Which of the following can best describe UAVs?

A．They are convenient but expensive.	B．They are creative but time-consuming.
C．They are safe but hard to operate.	D．They are smart but still need improving.

4. What is the best title for the text?

A．Preventing the Spread of Desert Locusts

B．FAO Continues Fighting Against Locusts

C．Massive Locusts Threaten Millions of People

D．Locust Control Throug hout History

6 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

In 2004, the junior high school student, now 13, launched the basketball-themed Hoops of Hope,     1     “charged” people in his neighborhood $1 for every basket he shot. Since then, thousands of youngsters have picked up on the idea and raised more than $325,000 for the cause. “It works     2     kids of my age want a chance to do something great and be part of something like this,” Gutwein told China Daily.

“I realized these kids weren’t any     3     (difference) from me, except that they were suffering     4     (terrible) and I wanted to do something to help     5     (they),” he said.

    6     the help of non-government organizations, Hoops of Hope has built a school for HIV/AIDS orphans and a medical lab in Zambia in South Africa.

Another participant, Li Yeqiao, a 15-year-old student at Beijing Bayi Middle School, told the conference how the group seeks to improve the way electronic waste     7     (deal) with, and encourages people     8     (save) water and care for animals. “We have developed 3R (Reduce, Reuse and Recycle) living habits. Our initiatives (首先行动)    9     (have) a positive impact on the local environment.” Li said.

British animal behavior expert Jane Goodall introduced the Roots & Shoots concept to China in 2000 to promote environmental and humanitarian education programs to     10     (child). There are now 300 of such groups in the country.

7 . Keeping curious kids from disrupting wildlife

Interacting with the wild, naturally curious kids tend to collect seashells at the beach or keep small wildlife as pets.     1     So how to help kids protect the wild while enjoying spending time outsides? Here are alternatives for some of the most common outdoor behavior no-nos.

Take an interest, not things. Kids show interest in picking flowers, rocks, or shells outdoors. They’re part of wildlife's habitat and play an important role.     2     Let kids explore with a magnifying glass (放大镜)instead of their curious fingers. Let whatever they find outside stay outside.

    3     It seems a fun idea to throw pieces of bread to ducks. Animals have unique dietary needs that are different from humans. Eating human food can make them sick or become dependent on human food. Bears are an example of animals that often have to be killed after developing a taste for human food.

Admire animal afar, not disrupt nearby. The urge to take a photo with a squirrel, bird, or slow-moving turtle can be strong for kids.     4     Instead, remind kids to stay away and show them how to use a camera's zoom button, or just admire with their eyes.

Take well-worn paths, not off-road romps (嬉戏). Kicking piles of leaves, stepping on bushes, and walking through forested areas can unintentionally scare wildlife. If surprised animals defend their homes, everyone could get hurt. Nobody likes having a guest come in and destroy their home and act rudely.    5    

A．Keep snacks away from animals.

B．Share food if animals are hungry.

C．Exposure to them develops kids’ love and curiosity.

D．The same rule applies to visiting wildlife in their homes.

E．Animals rely on plants for hiding; rocks and shells, for homes.

F．Approaching animals disrupts what they do for survival, such as eating.

G．Despite innocent purposes, kids’ curiosity accidentally damages the wild.

8 . More than half the world’s population live in cities, and by 2050 the UN expects that proportion to reach 68%. This means more homes, roads and other infrastructure. In India alone, a city the size of Chicago will have to be developed every year to meet demand for housing. Such a construction increase is a bad sign for dealing with climate change, because making steel and concrete, two of the most common building materials, generates around 8% of the world’s CO2 emissions (排放). If cities are to expand and become greener at the same time, they will have to be made from something else.

Wood is one of the most promising sustainable (可持续的) alternatives to steel and concrete. It is not, however, everyday wood that is attracting the interest of architects.

Rather, it is a material called engineered timber. This is a combination of different layers, each designed to meet the requirements of specific parts such as floors, panels and beams (横梁). Designers can use it to provide levels of strength like steel, in a product that is up to 80% lighter. In addition, engineered timber is usually made into large sections in a factory for future use, which reduces the number of deliveries to a construction site.

According to Michael Ramage of the University of Cambridge, a wooden building produces 75% less CO2 than a steel and concrete one of the same size. However, if building with wood takes off, it does raise concern about there being enough trees to go round. But with sustainably managed forests that should not be a problem, says Dr Ramage. A family-sized apartment requires about 30 cubic metres of timber, and he estimates Europe’s sustainable forests alone grow that amount every seven seconds. Nor is fire a risk, for engineered timber does not burn easily. Besides, fireproofing layers can be added to the timber. All in all, then, it looks as if wood as a building material may get a new lease of life.

1. Why is India mentioned in paragraph 1?

A．To point out the severe pollution.

B．To predict the population increase.

C．To indicate the high degree of urbanization.

D．To show the great need for building materials.

2. What can be learned about engineered timber?

A．It is produced at a low cost.

B．It hardly appeals to architects.

C．It helps save energy in transportation.

D．It possesses greater strength than steel.

3. What does the underlined phrase “takes off” in the last paragraph mean ?

A．Becomes cheaper.	B．Gains popularity.
C．Requires less work.	D．Proves sustainable.

4. What can be a suitable title for the text?

A．Making Future Cities More Attractive

B．Living in a World with Less Emission

C．Building Sustainable Cities with Woods

D．Growing More Trees for Future Building

9 . Much of the United States is locked by an unusually large winter storm, which has sent temperatures dropping sharply across the country, from coast to coast and as far south as southern Texas. In many areas, ice and snow storms have added to the challenges. Only a few areas in the south have dodged the freezing weather pattern. The National Weather Service( NWS) says that a winter storm, this large and this serious, has almost never been seen before.

The NWS reports that over 150 million Americans were under winter storm warnings. In Texas, over 2.7 million people were left without power on Monday. Texas isn't used to such serious winter weather. In the city of Houston, temperatures have dropped to - 9℃. The storm has led to huge, deadly highway accidents, and has forced its airport to cancel flights. On Sunday, President Joe Biden declared an emergency in Texas, allowing the state to get more help for the weather disaster from the US government. Several other states have declared some sort of weather-related emergency. In Washington and Oregon, warming shelters were opened to help people stay warm and safe.

The NWS says cold air from the Arctic is behind the record-breaking low temperatures. Though it may seem surprising, global warming may be one of the causes. A strong wind known as the jet stream usually flows in a circle around the Arctic, keeping super-cold air near the North Pole. But as the jet stream weakens because of climate change, the cold air is able to escape the Arctic and bring freezing temperatures to places that are normally much warmer.

The NWS is forecasting there’ll be more snow and freezing rain over the next few days as a new storm cuts up toward the Northeast from the middle of the country. The NWS says that much of the country will continue to have extremely cold temperatures, and it's likely that hundreds of cold weather records will be broken. Perhaps, people should think about the consequences of global warming.

1. Which can best replace the underlined word “dodged” in paragraph 1?

A．Seen.	B．Recorded.
C．Avoided.	D．Defeated.

2. Why does the author mention Texas?

A．It’s hit the hardest by extreme weather.

B．It's brought the super cold under control.

C．It's the first to warn of the climate disaster.

D．It's helping other states with the winter storm.

3. What does paragraph 3 mainly focus on?

A．How the jet stream forms in the Arctic.

B．What causes the extreme cold in America.

C．Why the cold air escapes from the Arctic.

D．When the global warming affects America.

4. What is the NWS’s prediction about the rough weather?

A．It’ll change climate permanently.	B．It’ll cause another new storm.
C．It’ll lessen global warming.	D．It’ll go on for some time.