To me, the ocean is our greatest wilderness. ...

To me, the ocean is our greatest wilderness. I love swimming in it , surfing its waves, watching it from shore and thinking about all the life living unseen under the surface.

When I take my little kids to check out tide pools, we’re overjoyed when we find a sea star or some shellfish. Lately, though, I've noticed a change in my favorite pools: there are more sea grasses and fewer animals with shells.

I can't help feeling these small changes portend something more troubling about our oceans. It matches what scientists are telling us: our oceans are being troubled by carbon dioxide that threatens corals, colorful fish, salmon, sea otters, even whales. Our oceans are facing a major change.

Every hour, a million tons of carbon dioxide from cars, factories and power plants rain down on the world’s oceans. Carbon pollution brings about a chemical reaction that turns sea water more acidic (酸的) and takes away things important for sea animals .

Some of us are already feeling the effects of this growing crisis（危机）. Shellfish farmers in the Pacific Northwest have reported a decrease in natural and farmed oysters(牡蛎). Just this week, a new studyproved the link between the huge reduction in the numbers of oysters and ocean acidification. As polar waters become more acidic, Alaskan fishermen are troubled by the future of smaller fish.

Without action, ocean acidification will have a disastrous influence on the food chain, affecting not only sea life but the people who depend on it for food and their living. Already, our oceans have become 30 percent more acidic since preindustrial times, and it gets worse every day. We can stop this frightening dream, but only if we act now.

That's why the Center for Biological Diversity has started a petition (请愿书) requesting President Obama and the Environmental Protection Agency to develop a plan to deal with ocean acidification. Decisive action can save sea life as we know it.

Now it isn’t too late to save our oceans and sea life. With immediate action to reduce carbon dioxide release we can start taking important steps today to deal with this disastrous situation. Join me in our petition calling for a national plan to save our oceans.

1.The author’s recent visits to the tide pool brought her ___ .

A．happiness         B．anger             C．concern          D．comfort

2.The underlined word “portend” in Paragraph 3 probably means ___ .

A．predict           B．prevent           C．replace           D．reduce

3.What the author worries about most is ____ .

A．the harm of sea grasses

B．carbon pollution in the sea

C．that the petition may be turned down

D．how fishermen can make a living in the future

4.What is the main purpose of the text ?

A．To inform.         B．To educate.        C．To persuade .       D．To instruct.

高二英语阅读理解中等难度题查看答案及解析

It is easier to float in the ocean than it is to float in a swimming pool. Do you know why?

Ocean water is full of salt— and salt water can hold up more weigh than fresh water. See for yourself!

You Will Need:

● 3 cups of warm water

● Measuring cup (量杯)

● Wide-mouthed jar

● Salt

● Spoon

● Raw (生的)potato

You Will Do:

1. Pour 1.5 cups of warm water into the jar.

2. Add 1/3 cup of salt.

3. Stir(搅拌) until the salt is completely dissolved.

4. Add another 1.5 cups of water. Pour it slowly over the back of the spoon into the jar so that the two liquid will not mix together.

5. Gently place the potato into the jar. Do not drop it.

What Will Happen:

The potato will sink— but only halfway!

Why?

Salt water is heavier than fresh water, so it will stay on the bottom. The fresh water will remain on top.

The potato is heavier than the fresh water, but it is lighter than the salt water. That is why the potato will sink halfway down.

1.In the experiment, what should you do right after you pour the water over the spoon?

A．Add the salt to the water.                 B．Stir the salt into the water.

C．Place the potato in the jar.                 D．Pour warm water into thejar.

2.In Step 4 of the experiment, why do you pour the water over the spoon “slowly”?

A．It is easier to see what you are doing.

B．It pushes the fresh water to the bottom.

C．It will keep the water from coming out.

D．It will keep the liquids from mixing together.

3.In which step of the experiment do you add the salt?

A．Step 1            B．Step 2            C．Step 3            D．Step 4

4.What does the underlined word “gently” mean?

A．Carefully          B．Quickly           C．Secretly           D．Silently

高二英语单项填空中等难度题查看答案及解析

---Excuse me, Sir, is the swimming pool open every day?

---______, only from 6:00 pm to 10:00 pm

A. That’s right    B. Yes, of course    C. Sorry, I’m not sure   D. Sorry, I’m afraid not

高二英语单项填空中等难度题查看答案及解析

We all love our children and we all know how competitive the world is these days. What’s it going to be like when our children leave school? Will they have the skills they need to stay ahead of the competition?

All children need two basic skills to succeed. They must be able to read and they must be able to write. And with so much information available to them these days, they must be able to read quickly and accurately. That’s why your children need to be able to speed-read.

It’s ironic (讽刺的) that at this time of space-age technology, we’ve gone back to one of the earliest forms of mass communication—the written word. The Internet has introduced a revival (重新流行) of writing, and if you can’t keep up, you’ll be left behind. You certainly don’t want your children to be left behind.

You can help to make sure that your children are excellent writers—you can help them to learn how to use their language. Better still, you can learn with them!

You and your children can spend time together in a worthwhile pursuit (事业)—learning how to write. Forget the theme parks, the computer games, the expensive movies and interesting sports. If you want your children to have treasured memories of time spent with you, learn together.

For less than you would pay for tickets to a theme park, you can invest in your children’s future—help them learn to write well with my six-part writing course.

Don’t stand by while your child is left further and further behind.

1.From the last two paragraphs, we can know the main purpose of the passage is_______

A. To encourage students to be better prepared for the future.

B. To list the qualities children must have for their future success.

C. To persuade parents to choose a writing course for their kids.

D. To explain the difficult situation children have to face at present.

2.In the author’s opinion, ______.

A. speed-reading is the first step in a child’s formal education

B. children today waste too much time on games, movies and sports

C. children’s success depends much on good skills in reading and writing

D. writing helps people communicate more effectively in modern society

3.What does the author think of writing as a form of communication now?

A. Important.　　 B. Funny.

C. Informal.　　 D. Old-fashioned.

4.What’s the advantage of children’s learning together with their parents?

A. They will learn more quickly and accurately.

B. They will not be affected by games and sports.

C. It will encourage them to work for a higher pursuit.

D. They will have good memories of time spent with parents.

高二英语阅读理解中等难度题查看答案及解析

The oceans are unique to our planet. No other planet in our solar system has liquid water. The oceans cover about 70% of the earth's surface. They contain about 97% of the earth's water supply. Life on earth originated in the seas. The oceans continue to be home to an incredible number of plants and animals.

We know very little about the oceans. Because they are so deep and dark, they are hard to study. But scientists are discovering new strange creatures all the time. We are learning more by using satellites to look at the oceans' surfaces and by using buoys (航标) to measure temperature and saltiness. Special vehicles can now travel deep into the dark oceans to see what mysteries can be discovered.

More of the sun's heat is assimilated by water along the equator than at the poles. This means the water at the equator is warmer than water at the poles. These different water temperatures cause the water in the oceans to move. This is called an ocean current.

The air above ocean currents also moves. The warm or cold ocean air moves over the land as wind. Oceans are also a really important part of the water cycle. Evaporation (蒸发) from oceans creates most of the world's rainfall. Plants on land need the rain to absorb nutrients from the soil.

The oceans are also home to all kinds of sea life. These include fish, whales, dolphins, octopi, lobsters, crabs and shrimps. There are also jellyfish and starfish. Many kinds of plants, such as plankton, kelp and sea grass are part of the "forest of the seafloor."

Carbon dioxide in-oxygen out! Oceans help to capture and store carbon dioxide(C02). They are the largest natural "carbon sinks" in the world. Oceans trap about 1/4 of the CO2 that humans put into the air. Oceans also release oxygen. Half of the world's oxygen is produced by these tiny plants!

1.What does the author think of oceans?

A. They are amazing.　　 B. They are common.

C. They are boundless.　　 D. They are unimaginable.

【小题2 To know more about the mysterious oceans, ________.

A. scientists use satellites in the oceans

B. scientists are discovering new strange creatures

C. scientists are using satellites to monitor the depth of oceans

D. scientists are introducing scientific equipment in the research

2.What does the underlined word "assimilated" mean in the passage?

A. Taken in.　 　 B. Given off.

C. Cut down.　　 D. Held back.

3.It can be inferred from the passage that ________.

A. oceans produce much carbon dioxide

B. it is not safe to live by the oceans

C. oceans provide humans with rich resources

D. humans can only depend on oceans for water

高二英语阅读理解简单题查看答案及解析

Helen Thayer，one of the greatest explorers of the 20th century，loves challenges. She says，"I like to see what's on the other side of the hill." She has gone almost everywhere to do that.

In 1988，at the age of 50，she became the first woman to travel alone to the North Pole. She pulled her own sled (雪橇) piled with 160 pounds of supplies，and during her trip no one brought her fresh supplies. Accompanied (陪伴) only by her dog Charlie，she survived cold weather and meetings with polar bears. In fact，Charlie saved her life when one of them attacked her. Near the end of her trip，a forceful wind blew away the majority of her supplies. The last week of the trip，she survived on a handful of nuts and a little water each day.

Helen goes to challenging places not only for adventure，but also for education. Before her Arctic journey，she started a website called Adventure Classroom. On the site，she shares her adventures in order to motivate (激发) students. She explains，"Although kids often see the world in a negative way，without hope for their future，we work to inspire them to set goals，plan for success and never give up..."

Helen grew up in New Zealand. Her parents were athletes and mountain climbers. Following her parents' example，she climbed her first mountain at 9. Later，she climbed the highest mountains in North and South America，the former USSR and New Zealand.

In 1996，she took on another challenge--the Sahara Desert. She and her husband，Bill，walked 2,400 miles across it！In 2001，she and Bill traveled on foot from west to east through the Gobi Desert in Mongolia. They hope to travel in mainland China into Sichuan and Tibet to study pandas this year.

Helen plans to continue taking trips. She'll use her explorations，writing，photography and environmental work to create programs for her Adventure Classroom website. She wants to inspire her students never to stop facing challenges!

1.We learn from Paragraph 2 that ________.

A. Helen Thayer is the first person to reach the North Pole

B. Helen Thayer ate nothing during the last week of her trip

C. Charlie prevented Helen being attacked by polar bears

D. Helen Thayer traveled to the North Pole together with her husband

2.Why does Helen travel to different places worldwide?

A. For education.　　 B. For fun.

C. For money.　　　　　 D. For fame.

3.Which is the best title for the text?

A. The Woman Who Loves Adventure B. A Famous Woman

C. A Woman Mountain Climber　　　　 D. The Owner of Adventure Classroom

4.Which of the following places has Helen not visited yet?

A. The North Pole　　　　　　 B. The Sahara Desert

C. The Gobi Desert　　　　　　 D. Sichuan and Tibet

高二英语阅读理解中等难度题查看答案及解析

We must remember the health and safety of our oceans is our individual responsibility, _______ that we can’t afford to ignore.

A. one　　 B. that

C. what　　 D. who

高二英语单项填空困难题查看答案及解析

My family and I love going to the beach. We go to the beach every weekend. I love to swim and hang out.

_____ something really terrible happened last August. It started out as a warm, sunny day. We were at the _______ with friends. Late that afternoon, my friend, her six-year-old cousin, and I were _______ in shallow(浅的) water, talking about school starting. Then I felt something on my right leg. I _______ a crab(螃蟹) bit(咬) me. But then I saw a _______ swimming near me.

I was _______. I thought, “This can’t be happening.” I _______ to my friend, “Get out of the water! It’s a shark!” She ran onto the beach toward our parents. I _______ running, too. But then I looked over my shoulder and _______ my friend’s little cousin was still in the water. I _______ and caught her hand. I knew it was _______, but I also thought I probably wouldn’t get bitten _______. When she saw my leg, she _______. I was super terrfied. I felt great _______. We ran and finally got to the beach.

On the way to the hospital, it started raining. The whole_______ was like my most frightening dream. At the hospital, the doctors thought the shark might have bitten me twice _______ there was a smaller bite inside the big bite.

_____ I only had to miss the first three days of school. When I got there, all the girls _______ to push me in my wheelchair(轮椅).

Now that I’m recovered(恢复), my family and I are back to swimming in the ocean. Getting bitten by a shark hasn’t _______ how much I love going to the beach. Somehow, this experience made me _______ it more. I say, “Back off, sharks!”

1.A. So　　 B. Or　　 C. But　　 D. Unless

2.A. park　　 B. pool　　 C. beach　　 D. party

3.A. swimming　　 B. drinking　　 C. fishing　　 D. diving

4.A. found　　 B. thought　　 C. saw　　 D. remembered

5.A. duck　　 B. snake　　 C. girl　　 D. shark

6.A. surprised　　 B. frightened　　 C. excited　　 D. angry

7.A. listened　　 B. pointed　　 C. smiled　　 D. shouted

8.A. started　　 B. kept　　 C. practiced　　 D. stopped

9.A. hoped　　 B. forgot　　 C. realized　　 D. guessed

10.A. looked away　　 B. went by　　 C. ran back　　 D. held on

11.A. funny　　 B. risky　　 C. normal　　 D. simple

12.A. too　　 B. alone　　 C. before　　 D. again

13.A. understood　　 B. left　　 C. laughed　　 D. cried

14.A. pride　　 B. pain　　 C. satisfaction　　 D. uncertainty

15.A. journey　　 B. situation　　 C. dream　　 D. exercise

16.A. and　　 B. if　　 C. because　　 D. though

17.A. Luckily　　 B. Possibly　　 C. Strangely　　 D. Clearly

18.A. agreed　　 B. failed　　 C. refused　　 D. wanted

19.A. developed　　 B. shown　　 C. explained　　 D. changed

20.A. love　　 B. doubt　　 C. regret　　 D. miss

高二英语完形填空简单题查看答案及解析

About 97% of the world’s water is salty and is found in our oceans and seas. But, as we can’t drink sea water, how can it be important?

Every part of our seas and oceans contains an amazing number of animals and fish that live at different ocean depths. Most of the different species of animals and fish depend on simple plants for their food. These simple plants called algae (海藻) drift near the surface of the ocean and use sunlight to turn carbon dioxide and water into food and oxygen. In fact, algae produce over half of the oxygen people breathe. How important sea water is!

Each plant or animal in our seas and oceans is an important link in a food chain. The algae are eaten in large amounts by microscopic animals, which are in turn consumed by larger animals. These food chains are delicately balanced.

The bad news about the food chains in the oceans is that they are under threat because of man. People once thought that the oceans were so big that it didn’t matter if we dumped rubbish into them or caught huge quantities of fish and whales for food. But we now know this is not true and fish stocks in the oceans have started to drop.

Thankfully, the world is taking steps to protect the future of our oceans by introducing international agreements to protect marine habitats. Most countries have introduced fishing restrictions to protect fish stocks in the oceans and new techniques are being pioneered to cope with pollution. Finally, the importance of protecting oceans is being made known to more people. This is just the beginning of a long process to protect the oceans for our future. We depend on the oceans for fish which are an important part of the human diet. How important sea water is!

46. Which of the following is the proper order of the food chain?

A. small animals→algae→microscopic animals→large animals→man

B. algae→microscopic animals→large animals→larger animals→man

C. small animals→algae→large animals→microscopic animals→man

D. microscopic animals→algae→large animals →larger animals→man

47. People used to think that the rubbish thrown into the sea ________.

A. wouldn’t harm the fish in the sea   B. would change the balance of the food chain

C. would be broken down in the sea   D. wouldn’t do much harm to the sea

48. From the passage, we learn that _________.

A. most fish and sea animals live at the surface of the seas

B. it is very difficult to break the balance of a food chain

C. excessive fishing has caused the decrease in fish stock

D. it won’t be long before the problems concerning oceans will be solved

49. Which of the following is NOT a way being used to protect oceans?

A. The use of international agreements.

B. Forbidding fishing to protect fish stocks.

C. The use of new techniques.

D. Raising people’s awareness of the need to protect oceans.

50. What would be the best title of the passage?

A. The importance of seawater.

B. Life in the oceans.

C. How to protect food chains.

D. How to deal with seawater pollution.

高二英语阅读理解简单题查看答案及解析

About 97% of the world's water is salty and is found in our oceans and seas. But, as we can't drink seawater, how can it be important?

Every part of our seas and oceans contains an amazing number of animals and fish that live at different ocean depths. Most of the different species of animals and fish depend on simple plants for their food. These simple plants called algae (海藻) drift near the surface of the ocean and use sunlight to turn carbon dioxide and water into food and oxygen. In fact, algae produce over half of the oxygen people breathe. How important seawater is!

Each plant or animal in our seas and oceans is an important link in a food chain. The algae are eaten in large amounts by microscopic animals, which are in turn consumed by larger animals. These food chains are delicately balanced.

The bad news about the food chains in the oceans is that they are under threat because of man. People once thought that the oceans were so big that it didn't matter if we dumped rubbish into them or caught huge quantities of fish and whales for food. But we now know this is not true and fish stocks in the oceans have started to drop.

Thankfully, the world is taking steps to protect the future of our oceans by introducing international agreements to protect marine habitats. Most countries have introduced fishing restrictions to protect fish stocks in the oceans and new techniques are being pioneered to cope with pollution. Finally, the importance of protecting oceans is being made known to more people. This is just the beginning of a long process to protect the oceans for our future. We depend on the oceans for fish which are an important part of the human diet. How important seawater is!

1.People used to think that the rubbish thrown into the sea ________.

A．wouldn't harm the fish in the sea

B．would change the balance of the food chain

C．would be broken down in the sea

D．wouldn't do much harm to the sea

2.From the passage, we learn that ________.

A．most fish and sea animals live at the surface of the seas

B．it is very difficult to break the balance of a food chain

C．excessive fishing has caused the decrease in fish stock

D．it won't be long before the problems concerning oceans will be solved

3.Which of the following is NOT a way being used to protect oceans?

A．The use of international agreements.

B．Forbidding fishing to protect fish stocks.

C．The use of new techniques.

D．Raising people's awareness of the need to protect oceans.

4.What would be the BEST title of the passage?

A. The importance of seawater.

B. Life in the oceans.

C. How to protect food chains.

高二英语阅读理解中等难度题查看答案及解析