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Seventy percent of our planet is covered by one huge body of seawater-the ocean. In 2008, the United Nations recognized(确立) June 8 as World Oceans Day. It's a day to think about the important role that the oceans play in our lives, the dangers that our oceans are facing and the action we can take to protect them.
The ocean is home to the most of plants and animals on Earth. Plants in the sea provide us with 70 percent of O2 we breathe. The ocean controls our climate (气候), providing heat in winter and cool air in summer. It also provides us with food and medicine. No matter where you live on the planet, no matter how far from the sea, your life is dependent on the ocean.
The biggest problem facing the ocean at the moment is plastic pollution. Reducing single-use plastic, including plastic bags and plastic bottles, has been an important theme for World Oceans Day for a number of years.
Climate change and rising sea temperatures are also a huge problem. Rising sea temperatures have a direct influence on weather patterns and are seen as partly responsible for an increase in extreme (极端的) weather.
The day is celebrated in all kinds of ways, including special events on the beach, river clean-ups, school activities, art contests and film festivals. You can join in to remind people about the importance of our oceans and to make a difference.
1.What percent of our planet is covered with seawater?
A.30% B.40% C.70%
2.What is the main idea of Paragraph 2?
A.The ocean provides us with heat and cool air.
B.Our life is dependent on the ocean.
C.The ocean provides us with food and medicine
3.What is the biggest problem facing the ocean?
A.Plastic pollution. B.Reducing single-use plastic. C.Air pollution.
4.What is partly responsible for an increase of extreme weather?
A.Climate change. B.Rising sea temperatures. C.Weather patterns.
5.How do people celebrate World Oceans Day?
A.Eating out together. B.Having a meeting. C.Holding special events.
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Antarctica (南极洲) is the coldest, driest and windiest place on our planet. What would it be like to live and work there? On Oct. 15th, 2019, 50 Chinese scientists set sail from Shenzhen, heading for Antarctica. This was our country's 36th Antarctic expedition. The ship, Xuelong 2, is the first icebreaker made in China. Xuelong 2 is one of the world's best research icebreakers.
It can sail to any place around the world in one trip without refueling (加燃料). It can work in temperatures as low as -30%℃. It is the first in the world to use two-way ice-breaking technology, which means that it can break the ice while moving forward or backward.
Because of Antarctica's special environment, scientists from around the world have been there to do studies for many years. The study of Antarctica's geology (地质) is also important. Rock in Antarctica can tell scientists what the weather was like a long time ago. And they can help scientists understand how the earth has changed over time. There are also many wild animals, such as penguins and seals. Scientists can learn how animals live in cold places by studying them.
As we all know, life in Antarctica is not easy－it's cold and sometimes dangerous. But scientists say it's still quite fun. For example, some scientists study how penguins walk, what they eat and why they move from one place to another. They are excited to see the cute animals playing around. They hope their studies can help protect them.
Xuelong 2 finished its tasks and returned to Shanghai on April 22, 2020.
1.How many Chinese scientists headed for Antarctica on Oct 15th, 2019?
A.Fifteen. B.Nineteen. C.Fifty. D.Two hundred.
2.Xuelong 2 is ______.
A.the first icebreaker made in the world
B.the first in the world to use two-way ice-breaking technology
C.one of the best research icebreakers in China
D.the second icebreaker made in China
3.According to Paragraph 3, scientists study ______ in Antarctica.
A.how the weather has changed B.the geology and wild animals
C.the original plants D.how the rock disappeared
4.Which of the following best describes scientists’ life in Antarctica?
A.Not easy but still quite fun. B.Dangerous and boring.
C.Hard and dangerous. D.Safe but quite tiring.
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Antarctica (南极洲) is the coldest, driest and windiest place on our planet. What would it be like to live and work there? On Oct. 15th, 2019, 50 Chinese scientists set sail from Shenzhen, heading for Antarctica. This was our country's 36th Antarctic expedition. The ship, Xuelong 2, is the first icebreaker made in China. Xuelong 2 is one of the world's best research icebreakers.
It can sail to any place around the world in one trip without refueling (加燃料). It can work in temperatures as low as -30%℃. It is the first in the world to use two-way ice-breaking technology, which means that it can break the ice while moving forward or backward.
Because of Antarctica's special environment, scientists from around the world have been there to do studies for many years. The study of Antarctica's geology (地质) is also important. Rock in Antarctica can tell scientists what the weather was like a long time ago. And they can help scientists understand how the earth has changed over time. There are also many wild animals, such as penguins and seals. Scientists can learn how animals live in cold places by studying them.
As we all know, life in Antarctica is not easy－it's cold and sometimes dangerous. But scientists say it's still quite fun. For example, some scientists study how penguins walk, what they eat and why they move from one place to another. They are excited to see the cute animals playing around. They hope their studies can help protect them.
Xuelong 2 finished its tasks and returned to Shanghai on April 22, 2020.
1.How many Chinese scientists headed for Antarctica on Oct 15th, 2019?
A.Fifteen. B.Nineteen. C.Fifty. D.Two hundred.
2.Xuelong 2 is ________.
A.the first icebreaker made in the world B.the first in the world to use two-way ice-breaking technology
C.one of the best research icebreakers in China D.the second icebreaker made in China
3.According to Paragraph 3, scientists study________ in Antarctica.
A.how the weather has changed B.the geology and wild animals
C.the original plants D.how the rock disappeared
4.Which of the following best describes scientists’ life in Antarctica?
A.Not easy but still quite fun. B.Dangerous and boring.
C.Hard and dangerous. D.Safe but quite tiring.
5.When did Xuelong 2 return to Shanghai from Antarctica?
A.In mid-March 2020. B.In late March 2020.
C.In mid-April 2020. D.In late April 2020.
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As the weather changes from day to day, sometimes it's impossible to avoid catching a cold or the flu. However, that doesn't mean we have to suffer terribly. Since the only way to get better from a cold is to go through the process, many natural remedies (疗法) have helped to reduce the symptom (症状) of the common cold.
If you feel the cold, you should drink something warm. Add honey and lemon to hot water or tea. You will keep warm while you're drinking tea. In traditional Chinese medicine, ginger (姜) has been used for over two thousand years. A cup of ginger tea helps to increase the blood move and make you sweat through your body.
Garlic (大蒜) is a super food. Garlic helps to fight off germs (细菌) when eaten daily. It can reduce the number of colds you get each year and shorten cold symptoms. If you don't mind eating uncooked garlic, it's best to eat a few pieces every three to four hours when you feel the first signs of a cold.
It's no secret that salt gets rid of germs. For a sore throat, mix about half a teaspoon of salt into warm water and use as a mouthwash. Whether it's for breakfast, lunch or dinner, the Japanese enjoy umeboshi, sour and salty apricots(杏子) that help keep the doctor away. Using a neti pot is an old practice from India that helps people breathe better. As a mixture of salt and water pours into the nose, the germs are cleared away.
Although cutting an onion can make you cry, it's good for a blocked nose. People in Mexico and Spain eat hot peppers to get their sense of smell back temporarily during a cold. Of course, you'd better be ready to experience a wave of heat! In Korea, kimchi is a popular side dish that keeps people healthy. It's made from pickle vegetables, red hot sauce and sometimes garlic and ginger.
It is common to have a cold, and Mother Nature’s remedies will be there for you to lower your pain when you need to fight against that cold!
1.Which of the following best shows the structure of the passage?
A.
B.
C.
D.
2.The underlined word "It" in Paragraph 3 refers to ________ .
A.the garlic B.the germ C.the cold D.the symptom
3.The passage mainly wants to tell us that ________.
A.people can catch a cold and the flu in many ways
B.natural remedies are helpful when people catch colds
C.Mother Nature's food can take the place of medicine
D.natural food helps people fight against all the illnesses
4.According to the passage, we can learn that ________.
A.a neti pot is always used to keep warm
B.ginger is newly found to be good for health
C.kimchi is a main dish made from vegetables
D.umeboshi is salty and sour apricots Japanese like
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Everybody knows that Earth spins from west to east. That is to say, it appears to be turning counterclockwise (逆时针) rapidly when viewed from above the North Pole. But what if Earth started spinning the other way?
Scientists from Germany have made a computer simulation in which Earth spins in the opposite direction ﹣ clockwise when viewed from above the North Pole. This showed them some interesting things about the weather and geography on Earth, Live Science reported.
As Earth spins in a counterclockwise direction, it shapes certain ocean currents (洋流). The direction of ocean currents, together with winds, produces different weathers around the globe. But a backward spin changes the ocean currents and winds. ▲ Western areas of the lands on Earth cool down as the eastern parts warm up. Winters become even colder in northwestern Europe, while eastern Russia becomes warmer than before. Rain no longer falls on the planet's wettest places.
Another result of a backward spin is that Earth becomes greener. Scientists found that global desert (沙漠) areas reduce from 42 million square kilometers to 31 million square kilometers. This may have something to do with the changing weather. Therefore, you can see rich green landscapes from Central Africa to the Middle East, which are mostly covered with deserts now. More surprisingly, the Sahara Desert becomes an oasis.
However, deserts don't disappear. They just appear in some places in which they never appeared before. Deserts would cover North America, where countries like the United States and Canada lie. Sand dunes would replace the Amazon rainforest in South America.
A backward spin would keep the main features (特征) of Earth's geography, such as the size, shapes and positions of lands and oceans. But it would change the interactions between circulating air, ocean and geography, lead scientist Florian Ziemen told Live Science.
1.What would a backward spin bring to Earth?
A.The direction of ocean currents and winds would be different.
B.Rain would no longer fall on western areas of the lands on Earth.
C.Deserts would become larger and cover the planet's wettest places.
D.The size, shapes and positions of lands and oceans would be changed.
2.Which of the following sentences can be put in the blank of Paragraph 3?
A.Anyway, deserts cover the planet.
B.Therefore, the weather is different.
C.However, the positions of oceans changes.
D.Surprisingly, the area of lands is larger.
3.The underlined word "oasis" in Paragraph 4 means ________ in Chinese.
A.海洋 B.绿洲 C.戈壁 D.高原
4.The passage is most probably taken from a magazine on ________.
A.history B.culture C.art D.geography
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Plants and animals are largely made of water. So are humans. They need to keep enough water inside them, or they could die.
We get some of the water we need by eating food that has water in it. Drinks, such as milk and tea, are mostly water, too. A person needs water every day. If we go without water for three or four days, we will lose too much water from our bodies. In very hot weather, we could lose this water in just one day.
What does water do to help our bodies? Water helps to take the nutrition（营养）from food to our bodies. It also helps to take the wastes away from different parts of our bodies.
In our homes, we also need water for many things. We need water for cooking, washing and flushing（冲水）the toilet. About three quarters of the water is used in the bathroom and toilet. The rest is mainly used in the laundry（洗衣房）and kitchen.
___________It may come from a lake or a river. It may come from the sea, from the rain and snow or from the underground. Water rises from rivers and seas to make clouds, and then falls again as rain and snow. The water you drink has been around for millions of years. It just keeps being recycled.
Many people work hard to make sure we always have clean water in our homes. Water is very important for all living things, so we should use it carefully.
1.Living things could ___________ without enough water inside them.
A.grow B.die C.live D.develop
2.A person can get water that he needs by ___________.
A.taking wastes away B.losing water quickly
C.changing water slowly D.eating and drinking
3.Water can take away ___________ from our bodies.
A.nutrition B.food C.wastes D.drinks
4.A quarter of the water is mostly used in the ___________ and the laundry.
A.kitchen B.living room C.toilet D.bedroom
5.Which of the following can be put in"___________" in the fifth paragraph?
A.How do we save water? B.What do we use water for?
C.Where does water come from? D.Where do we wash our clothes?
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I joined a two-day club for teenagers. Whether you believe it or not, the club was very 1. (help) and changed my life.
On the first morning, we had to give a general introduction of 2. (we). But I used to be shy and quiet, so I kept 3. (silence) most of the morning. Then in the afternoon, I met a girl called Mary w4. comes from Africa. She was humorous and always told us funny stories, which made us laugh a lot.
On the second day, the leader asked us to play a game "Chocolate or Toys". When he asked Mary how to deal 5. this problem, the girl chose chocolate. The leader 6. (require) her to tell the reason. "My country is at war and my family is poor, so I have no choice," She cried.
This hit me hard. Although my parents were too busy, I 7. (exact) lived a rich life. Instead, Mary's family lived a 8. (poor) life than any of us in the club. Later Mary told me that she came here in order to change her life with the help of 9. American couple.
Sometimes we don't have a choice in life,10. we should try our best to make everything better, as Mary did.
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It seems that every day we read about at least one of these (earthquakes, floods and hurricanes) somewhere in the world. 1.It's something much smaller and not so wellknown as an earthquake—it's an insect called the locust.
The locust usually does things alone. It lives on its own and eats on its own.2. When the number of locusts increases somewhere and there are lots of plants to eat, the locusts get together in swarms.
3.It is found in Africa, the Middle East, and Asia—in about 60 countries altogether. When desert locusts swarm, they bring problems to onetenth of all the humans in the world.
4.A swarm of desert locusts can be 1,200 km2 in size. And there can be 50 million locusts in each square kilometer. Each locust eats its own weight in plants every day—so a swarm of desert locusts can eat more than 150 million kilos of food in one day. They can also fly very long distances.5.
Farmers fear the desert locust because it destroys the harvest and brings hunger to people all over the world.
Word Bank
hurricane飓风 locust 蝗虫 swarm一大群;云集
A.The numbers are huge and frightening.
B.Perhaps the most dangerous locust is the desert locust.
C.But, sometimes, something changes the way nature works.
D.But every year, somewhere, another kind of disaster causes great damage to plants and people.
E.In 1954, a swarm of locusts from northwest Africa flew thousands of miles to finally land in Great Britain!
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Forests are the lungs of the earth. Without them, it cannot breathe. It needs its forests to remove carbon dioxide from the air and to make oxygen. In many countries, such as New Zealand, Canada, and Brazil, forests were cut down to1. (提供)wood to build houses. Cutting down trees is h2. to human beings,animals and plants. Many young volunteers around the world are working in their holidays to plant new trees to replace them.
These young men and women f3. many difficulties when they plant new trees. The weather may be very hot and dry or may be very cold and wet. Tree 4.(种植者) are changing the world. They plant different types of trees so that birds and animals can live in the forests. They b5.that in 50 years their little trees will become beautiful forests.
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The Taojinshan Greenway (绿道) in Shenzhen has been open to citizens since July, 2019.Sitting at the west side of Shenzhen Reservoir, it is as long as 7.07 kilometers.
With plants along both sides and lakes lying at different sites, tourists can enjoy wonderful scenery all the way. If they are tired, they are free to take a rest at the 3 stops that were built for breaks. Additionally, five unused guard posts (岗享) along the old route have remained. They serve as sightseeing platforms for visitors to feel the cultural spirit behind the place.
Of all its 13 scenic spots, 8 were designed to have AI helpers. From them, visitors can gain information on parking, tour guide services and more. The smart greenway, with free Wi-Fi available, also provides environmental date, such as temperature, wind speed and air quality. What's more, it can give visitors warnings of coming extreme ( 极端的) weather and natural disasters, including rainstorms and typhoons that may hit Shenzhen.
"Started in the middle of 2015,the building process of the Taojinshan Greenway has taken good care of the wildlife and environment nearby" said Yang Shiming, an official in charge of the project.
The greenway is an example of construction projects without doing ham to the nature. It also shows the role that technology plays in building a smart greenway for more life convenience."
1.How long did it take to finish the Taojinshan Greenway?
A.About 3 years B.About 4 years. C.About 5 years D.About 6 years.
2.What does the underlined word "They" in Paragraph 2 refer to?
A.Views. B.Visitors. C.Stops. D.Guard posts.
3.What is the main idea of Paragraph 3?
A.What AI helpers do. B.Technology changes life.
C.How AI helpers work. D.Technology protects humans.
4.What can we learn from this passage?
A.It is interesting to use AI helpers.
B.It is important to build greenways.
C.It is possible to balance nature and construction.
D.It is unnecessary to worry about terrible weather.