增加：在缺词处加一个漏字符号（^），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意： 1. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者（从第11处起）不计分。
Last week, after learn a lot about recycling and other ways to help with the earth, our class decided to teach people around about Earth Day. First, we borrow 500 big brown paper bags from a local food store. Then, we decorated the bags Earth Day messages and pictures. Later, we returned the bags to a store so that shoppers which used the bags to take home our groceries could know about Earth Day. The earth is humans’ only home, as we need to try our best to protect it. Actions speak loud than words. It is time for us to do anything to save the planet.
China’s research icebreaker Xuelong,
Snow Eagle 601, China’s first fixedwing aircraft for polar flight, on Thursday night also departed from the Antarctic after
Xuelong,
Sixteen members of the Kunlun team
The Zhongshan team completed tasks including installation of and tests for LiDAR, drilling of ice bedrock, atmospheric sounding
As the summer expedition team at Zhongshan left, 19 members would stay for winter expeditions.
Also
3 . Rainforests are home to a rich variety of medicinal plants, food, birds and animals. Can you believe that a single bush(灌木丛)in the Amazon may have more species of ants than the whole of Britain! About 480 varieties of trees may be found in just one hectare of rainforest.
Rainforests are the lungs of the planet-storing vast quantities of carbon dioxide and producing a significant amount of the world’s oxygen. Rainforests have their own perfect system for ensuring their own survival; the tall trees make a canopy(树冠层)of branches and leaves which protect themselves, smaller plants, and the forest animals from heavy rain, intense dry heat from the sun and strong winds.
Amazingly, the trees grow in such a way that their leaves and branches, although close together, never actually touch those of another tree. Scientists think this is the plants’ way to prevent the spread of any tree diseases and make life more difficult for leaf-eating insects like caterpillars. To survive in the forest, animals must climb, jump or fly across the gaps. The ground floor of the forest is not all tangled leaves and bushes, like in films, but is actually fairly clear. It is where dead leaves turn into food for the trees and other forest life.
They are not called rainforests for nothing! Rainforests can generate 75%of their own rain. At least 80 inches of rain a year is normal-and in some areas there may be as much as 430 inches of rain annually. This is real rain-your umbrella may protect you in a shower, but it won’t keep you dry if there is a full rainstorm. In just two hours, streams can rise ten to twenty feet. The humidity(湿气)of large rainforests contributes to the formation of rainclouds that may travel to other countries in need of rain.
1. What can we learn about rainforests from the first paragraph?| A．They produce oxygen. | B．They cover a vast area. |
| C．They are well managed. | D．They are rich in wildlife. |
| A．Heavy rains | B．Big trees. |
| C．Small plants. | D．Forest animals. |
| A．Life-Giving Rainforests | B．The Law of the Jungle |
| C．Animals in the Amazon | D．Weather in Rainforests |
4 . In times of stress, particularly when the water gets too warm, the coral(珊瑚)erupts the algae(海藻), and the coral turns white, causing a state called coral bleaching(漂白). Just a few degrees of heat can lead to coral bleaching, putting the coral on a path to starvation and death.
Driven by climate change, marine heat waves are becoming one of the greatest threats to the existence of coral, which is important to the ocean ecology. But in some rare good news researchers have discovered coral can recover from bleaching even before a heat wave ends, suggesting it has the potential to survive long heat waves. Coral was thought to survive only if a heat wave lasted just a few weeks.
But no one had studied this process during a longer heat wave. Then in 2015, Julia Baum, a marine ecologist at the University of Victoria, began a survey of two common species: brain and star coral around Kiritimati in the central Pacific Ocean. They checked the condition of the coral as the heat wave struck and disappeared.
Starting in May 2015, the temperature rose about 1 ℃ within 2 months. As expected, coral that housed heat-sensitive algae bleached sooner than those housing the heat-tolerant kind of algae. As the water continued to warm, even heat-tolerant algae erupted.
Many brain and star coral on Kiritimati recovered from bleaching while the water was still unusually warm. Baum said, "The unexpected recovery provides new hope, because it means that even under lasting heat waves, there's a path forward for some of them."
An unusual feature of the recovery is that brain coral that started out with heat-sensitive algae had a higher survival rate(82%)than coral that began with heat-tolerant algae(25%). "That finding is surprising," said Baum, expecting that heat-tolerant algae would be better suited for helping coral survive a heat wave. But during a longer heat wave, it might be more advantageous to start with a heat-sensitive algae.
1. What results in coral bleaching?| A．The white algae. | B．The coral's death. |
| C．An attack of waves. | D．A rise in ocean temperature. |
| A．To prove that coral can stop climate change. |
| B．To study how coral bleaching comes about. |
| C．To figure out whether coral survives long heat waves |
| D．To explain why coral bleaching is a big threat to coral |
| A．Ashamed. | B．Confused |
| C．Worried. | D．Astonished. |
| A．Protect the ocean environment. | B．Reduce coral bleaching. |
| C．Grow more different algae. | D．Regulate the heat wave. |
5 . A shocking 53.6 million tons of electronic waste were discarded（丢弃）last year, a new UN-backed report has revealed. The report shows that e-waste is up 21%from five years ago. This isn't surprising, considering how many more people are adopting new technology and updating devices regularly to have the latest versions, but the report also shows that national collection and recycling strategies are nowhere close to matching consumption rates.
E-waste contains materials including copper（铜）, iron, gold and silver, which the report gives a conservative value of $ 57 billion. But most are thrown away or burned rather than being collected for recycling. Precious metals in waste are estimated to be worth $ 14 billion, but only $4 billion-worth is recovered at the moment.
While the number of countries with national e-waste policies has grown from 61 to 78 since 2014, there is little encouragement to obey and a mere 17% of collected items are recycled. If recycling does occur, it's often under dangerous conditions, such as burning circuit boards to recover copper, which "releases highly poisonous metals" and harms the health of workers.
The report found that Asia has the highest amounts of waste overall, producing 24.9 million metric tons (MMT), followed by Europe at 12 MMT, Africa at 2.9 MMT, and Oceania at 0.7 MMT.
But whose responsibility is it? Are governments in charge of setting up collection and recycling points, or should companies be responsible for recycling the goods they produce? It goes both ways. Companies do need to be held accountable by government regulations and have incentives to design products that are easily repaired. At the same time, governments need to make it easy for citizens to access collection points and deal with their broken electronics in a convenient way. Otherwise, they may turn to the easiest option-the landfill.
1. What can we learn from the first paragraph?| A．What e-waste refers to. |
| B．Where e-waste is collected. |
| C．Why e-waste is increasing rapidly. |
| D．How many kinds e-waste includes. |
| A．The functions of policies. |
| B．The great damage to environment. |
| C．The change of consumption rates. |
| D．The urgency of recovering e-waste. |
| A．It does harm to the workers' health. |
| B．It lacks national policy support. |
| C．It hardly makes profits. |
| D．It takes too much time. |
| A．New technology should be used to update old devices. |
| B．Governments and companies should take responsibilities. |
| C．Non-poisonous metals had better be used in e-device. |
| D．Citizens must play a key role in recycling e-waste. |
6 . When Simon Cane was in the second grade, he began learning about all the ways humans have an impact on the environment and really took those classroom lessons to heart in a way that set him apart from his schoolmates at his elementary school, P. S. 81, in the Bronx. “He told me we drove too much and made too much pollution,” his dad, Jonathan Cane, told Runner’s World. So Simon convinced his parents to start hanging their clothes to dry, taking the stairs instead of elevators, and other “green” measures.
“For much of kindergarten and first grade I rode my bike to Simon’s school with him on the back,” Jonathan said. “We had a lot of fun being outdoors. We’d stop to give our dog treats and generally enjoyed it.” As Simon got bigger, though, it wasn’t practical for him to ride on his father’s back, but it also didn’t make sense to ride together — both because of safety concerns and because there was no place to put away Simon’s bike. So, most of the time they drove the 1. 5 miles to school.
But in 2019, when Simon was going into third grade, the 8-year-old came up with a new way to help the planet: running the 1. 5 miles to P. S. 81. And Jonathan promised his son he’d join him for as long as he wanted.
“We did a test run one day in August, and decided to give it a go. To be honest, I thought he’d blink (眨眼)after it got really cold or rainy, but he never did,” Jonathan said. He recalled one day when the weather was particularly bad. “It’s really raining out there today,” he told Simon. “And Simon said, ‘Well then we’re going to get wet!’ He took pride in toughing it out, and it became a really fun family routine.”
Since the start, Simon has run with his dad and their black dog, Lola, and has even inspired his mom, Nicole Sin Quee, to join in. They soon became known as “the family that runs to school”.
1. What makes Simon different from his classmates?| A．Washing his clothes by himself. | B．Taking many classes after school. |
| C．Raising strange questions in class. | D．Taking green measures to protect the environment. |
| A．By car. | B．By cycling. | C．By running. | D．By school bus. |
| A．Simon has trouble with his eyesight. | B．Simon is really stubborn and inflexible. |
| C．Simon is much tougher than expected. | D．Simon didn’t get support from his father. |
| A．The Best Way to Go to School |
| B．Father and Son Run for the Environment |
| C．A Teenager Keeps Running to Inspire Father |
| D．Three Inspiring Running Athletes to Protect the Environment |
The poor villagers of Yaluma in Southern Mexico now have an extra source of income. They are being paid to grow and develop forests by the
Projects like this
Supporters of carbon trading say that it provides a new way of doing business and brings money and green technology
It is believed that modern
8 . One evening, Catherine was at home as usual. As her
With a deep
Catherine and Davey
Being at the right place at the right time became almost normal, and they realized that much of what they
| A．thoughts | B．balance | C．hands | D．position |
| A．blamed | B．interrupted | C．frightened | D．moved |
| A．found | B．cheered | C．dropped | D．taught |
| A．abandoning | B．raising | C．shaking | D．hiding |
| A．pride | B．trust | C．love | D．fear |
| A．plan | B．promise | C．mistake | D．difference |
| A．corrected | B．repeated | C．described | D．discovered |
| A．driving | B．fixing | C．riding | D．covering |
| A．slowly | B．secretly | C．helplessly | D．frequently |
| A．heard | B．shared | C．wrote | D．read |
| A．problems | B．costs | C．efforts | D．choices |
| A．depending on | B．replying to | C．worrying about | D．meeting with |
| A．money | B．food | C．time | D．room |
| A．equipped | B．supplied | C．decorated | D．filled |
| A．set off | B．broke down | C．headed for | D．held on |
| A．rest | B．help | C．understanding | D．practice |
| A．volunteers | B．members | C．tourists | D．reporters |
| A．purpose | B．question | C．decision | D．lesson |
| A．introduced | B．expected | C．experienced | D．examined |
| A．turn | B．limit | C．compare | D．devote |
9 . SYDNEY —Australian scientists have designed a system which uses microwaves to break down plastic into an environmentally friendly by-product.
Head of Electrical Engineering at Australia’s James Cook University, Prof. Mohan Jacob revealed on Thursday that by using microwaves, plastic waste can be converted into biochar(生物炭), charcoal that can be used as a soil conditioner.
“We are developing a processing room, which could process many kinds of plastic materials, up to 5 kilograms of waste,” Jacob said. “It will be a typical example system for the development of biochars from different types of plastics under various conditions.” Jacob explained that microwave energy is used to heat the plastic waste above 600 degrees centigrade within the custom-made room, where it ends up as a biochar, which can then be used to improve the properties of soil.
Currently underway is step one of the project, testing the room, after which, step two will involve improving the energy efficiency of the system and maximizing the yield of by-products. If all goes to plan, step three will be to construct a medium scale waste processing system which is customizable and can be installed remotely.
Jacob said that with the average person using 130 kg of plastic every year, there is an urgent need for developing better ways of processing it.
“Perhaps contrary to popular opinion, plastic is an indispensable material in modern life. It is cheap, competent, lightweight, and has many benefits like maintaining food quality and safety and preventing waste,” he said.
However, “abandoned plastics endanger our marine wildlife, and have begun to enter the food chain. There is an urgent need for developing technologies to recover plastic waste.”
1. How does the system function?| A．Microwaves are used to produce plastic. |
| B．Plastic waste is heated in the microwaves. |
| C．Plastic waste is cut into pieces and buried into the soil. |
| D．Microwaves change plastic waste into biochar by heating. |
| A．Plastic consumption now is acceptable. |
| B．Plastic should be abandoned in our life. |
| C．The system of processing plastic has come into use. |
| D．Finding better ways to deal with plastic waste is urgent. |
| A．Make up for a loss in time. |
| B．Find or regain lost possession. |
| C．Extract or recycle an energy source for reuse. |
| D．Return to a normal state of health, mind or strength. |
| A．3 steps of processing plastic waste. |
| B．A way of producing plastic products easily. |
| C．A new system of breaking down plastic waste. |
| D．A program designed for plastic use in the daily life. |
10 . Help Hermit Crabs
Hermit crabs are nature’s recyclers. They eat waste and help keep oceans and shores clean. Unlike other crabs, the hermit crab has a thin outer shell over its soft tail. This makes the hermit crab easy prey for hungry predators. Hermit crabs stay safe by living in old seashells. A hermit crab is picky; it tries on many shells until it finds one that fits just right. In recent years, however, many hermit crabs have had trouble finding their perfect homes. What is the problems There are not enough shells to go around!
One reason for the seashell shortage is that ocean water is not as clean as it once was. This has caused chemical changes to sea water. Some sea animals, like snails, are affected by these changes. Now there are fewer snails making shells. People visiting the beach often take shells home as souvenirs. This is another problem. Other people even take shells for their own pet hermit crabs! They do not realize that hermit crabs in the wild need those shells too.
Now people are working to solve this hermit crab housing shortage. They are teaching beach-Boers to leave seashells where they belong — at the seashore! Some people even make fake seashells that they hope the hermit crabs will like. For example, a group called Project Shelter invited people who visited their website to create different designs for hermit crab shells.
These designers had a lot to consider. What kind of material should be used to build a seashells. The material must be light enough for the hermit crab to carry, but strong enough to protect the crab from predators. The man-made shells could not contain glue or any other substance that might harm a hermit crab. Another challenge with building a hermit crab home was the opening to the shell. Too big would mean the crab would not feel safe. Too small would be uncomfortable, and the crab would not want to move in.
The Project Shelter shells are placed in the wild for hermit crabs to find. Lucky hermit crabs can move into these new dream homes.
1. Where can hermit crabs stay safe?| A．In different old seashells. | B．Behind the waste they’ll eat. |
| C．In their own thin outer shells. | D．Under the stones at the seashore. |
| A．The methods to recycle the wastes. | B．The ways to help the hermit crabs. |
| C．The materials of seashells. | D．The designs of websites. |
| A．man-made | B．perfect | C．hard | D．comfortable |
| A．The Project Shelter Group. | B．The shortage of the seashell. |
| C．New homes for hermit crabs. | D．The recyclers of the nature. |
