1 . 根据课文内容填空

As that heat rises, some of it is     1     by gases in the atmosphere and reflected back towards the planet’s     2    . Like the glass in a greenhouse     3     holds heat inside the building, gases in the air hold in heat around Earth. Scientists call this global heat-trapping     4     the greenhouse effect. The greenhouse effect keeps the temperature of our planet’s surface comfortably warm.

Several gases in the atmosphere     5     to global warming. The one you’ve     6     heard the most about is carbon dioxide. Carbon dioxide is a good heat-trapping gas—a greenhouse gas,     7     scientists say.     8     certain amount of carbon dioxide in the atmosphere is     9    . In fact, you add some     10     the air every time you breathe out.

2 . 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。

Now a group of students at Glen Hills Middle School in Glendale, Wisconsin, are working to reduce their ecological footprint.     1     (lead) by science teachers Jennifer Clark and Chloe McClendon, the Green Team holds meetings every Tuesday and Thursday after school     2     (study) climate change and environmental pollution.

Glen Hills is     3     (national) recognized as a “Green Ribbon School”. To earn the recognition, a school must meet such     4     (requirement) as developing cost-effective energy, getting rid of     5     (harm) waste, and improving the health of students through various programs.

Due to the pandemic (疫情), the Green Team now conducts their Tuesday and Thursday meetings online. At     6     meetings they come up with ideas and school activities that will teach fellow students and local people to protect the environment in fun ways.

“We volunteer in the community for river cleanup and compost (堆肥) efforts with Kompost Kids,” Clark says. The Green Team is invited to help sort and recycle waste with Kompost Kids, a local nonprofit organization run     7     volunteers.

Kompost Kids     8     (devote) to changing the way people deal with their waste.     9     can you do to help? Kompost Kids and the Green Team suggest you compost organic waste. Recycling plastic, metal cans, newspapers, etc.     10     (be) another great way to help the environment. You can separate these items in bins when throwing them away.

3 . 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。

The thought of a natural disaster can be    1    (frighten). But you can prepare your family for it with some simple steps. Below are some common    2    (measure) of preparing for disasters.

Have enough ways to get warnings. There    3    (be) different ways to receive a warning of a disaster. The common ones include using the television, phone, etc. To avoid missing the warning, you’d better make sure you have at least three ways to receive the warning.

Decide how to make family members communicate. Come up with    4    communication plan in case you are    5    (separate) in a disaster. Provide each member of the family with a phone, for example. And make a contact card for each family member so they have the phone numbers and addresses    6    they may need.

Choose    7    least two meeting places. Do it in case all of your family members can’t   reach a designed meeting place. Choose one place in your neighborhood or close to your home as well as one that’s out of town. Consider    8    (meet) at the closer place first in a disaster. And keep the out-of-town place as a backup.

Run practice drills (演习). It’s important    9    (practice) what to do in case of a natural disaster,    10    (especial) if you have children. Each year, you’d better organize a practice drill for a possible disaster. And try to let all the family members take part in it.

4 . “How many of us as children have stared up at a church-like top of a giant tree and climbed it in wonder, which is a rally special part of our lives?” asks Bill Laurance, a tropical ecologist at James Cook University. “The leaves of big trees in forests are spreading out in all directions. We’re faced with organisms that have evolved for long periods of ecological stability.”

“There’s a lot to discuss on the issue,” says David Lindenmayer, a conservation ecologist at the Australian National University. “Climate change will mean that, in some forests, big trees won’t reach the same sizes they used to.” The effects of climate change, including long droughts, more invasive species and so on increase the simple physical challenges that big trees face in pulling water from their roots to their leaves and withstanding windstorms.

Lindenmayer and Laurance define “large, old trees” as the largest five percent mature trees within a species. The flexible definition means that in some forests, the large, old trees might be only 20 meters tall and 100 years old.

These large, old trees control the surrounding plant communities, affect water and nutrient distribution, and provide food and shelter for wildlife. “They’re really the breadbaskets of the forest,” says Laurance. “This is a very environmentally and ecologically important group of organisms, and they need special care and handling.” Determining the distribution and habitat requirements for large, old trees in the landscape is the first step towards ensuring their survival, “We have to ensure that what we’re thinking is long-term, to match the way these trees have existed for hundreds or even thousands of years,” says Laurance. “It’s going to be a real challenge to keep some places where there is still wildlife and the big church-like trees that we all really care about.”

1. How does the author lead in the topic of the text?

A．By definition.	B．By comparison.
C．By quoting someone’s words.	D．By drawing some conclusions.

2. What can we learn about big trees from paragraph 2?

A．They are affected by various factors.

B．They have become shorter but thicker.

C．They easily pull water from their roots.

D．They grow taller because of climate change.

3. Which of the following does Laurance want to express in the last paragraph?

A．The plants around control trees’ survival.

B．It is necessary to take good care of big trees.

C．Big trees mainly depend on wildlife for survival.

D．Planting big trees is the first step in forest protection.

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

A．Protect Forest Giants

B．Keep Ecological Stability

C．Deal with Forest Organisms

D．Fight Against Climate Change

5 . A handful of old mobile phones lay in a grey bucket. These outdated devices, which are about to be chopped into thousands of pieces, will be given a second life as recycled e-waste. But many phones won't.

According to the latest estimates, the world gets rid of approximately 50 million tonnes of waste annually. E-waste is full of dangerous materials that can cause damage to human health and the environment if not managed properly. But only 20 percent of global e-waste is recycled.The rest ends up in landfill, or burned—or is not recycled at all.

And yet,Switzerland is a good example of how to deal with the growing environmental issue. The country collects and recycles roughly 7S percent of this discarded material. This is thanks to a strong voluntary take-back system, where consumers can take e-waste to a reclining collection point or any electronic shop retailer（零售商）. A recycling station can be found within at most 300 meters from any residential area. Everyone gets involved. Switzerland's e-waste system is unique and can't be easily copied-due to a strong recycling culture within the country.

However, Switzerland faces the same global challenges as every nation.The built-in lithium batteries（锂电池）aren't easy to take out. The only way to remove these potentially dangerous components is with a bar and hammer. This poses a significant risk to those handling the goods. As such, producers need to be more transparent(信息透明的) and show more clearly where the harmful substances are, and how they can be removed.

Once the battery is removed, e-waste is sorted into different component parts—-metals, plastics and other materials. Roughly 70 percent of the device can be recycled. The material that cannot be recycled is used for other purposes like construction material or is burned to generate energy. Mobile phones—from a material perspective (角度), from a value perspective，and also from an environmental impact perspective -are very important.

For the past 15 years, Switzerland has been actively encouraging and supporting electrical waste disposal practices. They are happy to share their knowledge, experience, lessons learned, and they are happy if other people pick up on it.

1. What can we know about the global e-waste?

A．Only 20% of the e-waste is useful.

B．It is becoming an environmental problem.

C．Most of it has been given a second life.

D．It has been the major cause of pollution.

2. what can we inferred about the"take-back"system in Switzerland?

A．It is unique and easy to copy.

B．It features many devoted volunteers.

C．It gains great support and understanding.

D．It is complicated and not easily accessible.

3. To help recycle e-waste, what are mobile phone producers advised to do?

A．Remove harmful substances.

B．Use less dangerous components.

C．Offer customers free bars and hammers.

D．Help make the removal easier and safer.

4. What is the text mainly about?

A．How to fight against e-waste.

B．Why E-waste gets out of control.

C．How to be champion of recycling.

D．How to lead an Eco-friendly lifestyle.

7 . The measurable threat to the environment has been worsened by the spread of COVID-19 that increases the need for plastic protective equipment. Most plastic is made from fossil fuels. Millions of tons of greenhouse gas are released from the development of these resources and plastic production and burning.

The end life of plastic is just worrisome. Less than 10% of the plastic produced has been recycled. Even more of it has been burned. But the vast majority of plastic has been buried inland, and it is increasingly polluting the environment. We hear mostly about ocean plastic and the harm done to sea creatures that mistake plastic bags and bits for food. But microplastic is even more worrisome. Plastic doesn't break down biologically but instead breaks down into tiny particles（a very small piece of something）, which have been found in every corner of the planet, on land and in the air, in drinking water and food sources.

Yet the public has not given this global environmental disaster the attention it requires. Instead, they have viewed single-use plastic—which makes up about 40% of plastic used each year—as a litter issue that can be solved through better recycling and waste management. That attitude must change because the recent global breakdown of the market for recycling has made it clear that it has never been, nor ever will be, able to keep up with plastic trash use.

California has been the forerunner of plastic waste reduction—it was the first state to ban single-use plastic bags and may be the first state to transform the way goods are packaged. The state also came close to passing an act which would have required that products sold in plastic packaging in the state have a proven recycling rate of 75% by 2032. California, though influential, can't solve this crisis alone. The US has long been producing a great amount of plastic trash and it should engage in reducing the use of plastic as well.

1. Why does the author mention the release of greenhouse gas in paragraph 1?

A．To show the harm of plastic

B．To warn of the climate change.

C．To call for the development of fossil fuels.

D．To highlight the importance of plastic equipment.

2. What's the author's attitude towards the public opinion on single-use plastic?

A．Favorable.	B．Tolerant.
C．Curious.	D．Opposed.

3. What's California's role in reducing plastic waste?

A．A pioneer.	B．A failure.
C．An objector.	D．A predictor.

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

A．Microplastic Products Are Harmful

B．Waste Recycling Is an Urgent Matter

C．Plastic Waste Pollution Is a Wake-up Call

D．Global Environmental Disasters Are Increasing

8 . My interest in wildlife and rainforests began at an early age, when my parents introduced me to nature books and magazines. I was _______ by the pictures of strange animals living in distant lands. As I got older, my mother and father _______ my learning by taking me on trips to other countries. Therefore, I could see wildlife firsthand. I grew to _______ appreciate places of natural beauty and _______ the environment around me.

Over the years I have seen many beautiful _______ and met many wonderful people. I have swum with sea lions in the Galapagos Islands, _______ lemurs (狐猴) sing and dance in Madagascar, and had many other amazing _______. I have also become increasingly aware of the changes _______ by human activities. Some of the special places I so _______ are no longer around today. My inspiration to protect rainforests comes from a particular ________ in the rainforest of Borneo when an area of ________ was destroyed by loggers (伐木工).

Today I ________ a great deal of time reading, writing, traveling to rainforests, and talking with scientists doing research on them. My ________ is to raise awareness, interest, and appreciation of wild-lands like rainforests. It is not too ________ to save these special places and I hope that my work will someday inspire people to make a ________ in the world around them.

1.

A．frightened

B．comforted

C．fascinated

D．disturbed

2.

A．chose

B．encouraged

C．decided

D．explored

3.

A．possibly

B．only

C．mostly

D．greatly

4.

A．respect

B．destroy

C．balance

D．govern

5.

A．figures

B．gifts

C．places

D．tools

6.

A．made

B．watched

C．heard

D．helped

7.

A．adventures

B．dreams

C．experiments

D．questions

8.

A．prevented

B．needed

C．shown

D．caused

9.

A．disliked

B．forgot

C．enjoyed

D．climbed

10.

A．experience

B．solution

C．challenge

D．field

11.

A．mountain

B．rainforest

C．desert

D．plain

12.

A．waste

B．spend

C．avoid

D．miss

13.

A．method

B．major

C．strength

D．goal

14.

A．fresh

B．old

C．late

D．serious

15.

A．promise

B．decision

C．plan

D．difference