A new report says plastics are responsible fo...

A new report says plastics are responsible for $13 billion in damage to the oceans and the undersea environment. The findings were announced recently at a United Nations conference．1..

Plastic thrown away carelessly makes its way into rivers and other waterways. 2.. After a while, it collects in the sea. And plastic never goes away. Plastic is not biodegradable—destroyed by bacteria or natural processes. Instead, it just breaks up into smaller pieces over time. The oceans contain a lot of chemicals and other pollutants(污染物).3..That means harmful material may get into our food supply.

4.. Human beings cause pollution and they can take steps to stop it. They can use fewer single use product containers and throw plastics away correctly. Plastic recycling programs also works—where old bottles and other plastics are collected, broken down and used to make new products. We could reuse bottles in our households many times if we wish to, rather than end it after the first use. We could, when we get rid of that plastic, recycle it and reuse it, which replaces the need for raw materials.

The report also calls on companies to improve methods for using plastics. 5.. And it calls for information about the way plastic is thrown out or removed from use. By putting a new value on plastic, industry has a special reason to clean up the environment.

But all of the companies must join to deal with the problem.

A. Then, fish may eat the plastics.

B. But people can make a big difference.

C. Plastics should be gathered together and reused.

D. It is convenient to use plastic bags in everyday life.

E. It asks for them to better measure and control plastic use.

F. The plastic eventually reaches coastal areas and ocean waters.

G. The report tells about harm to sea life and what might be done to improve the situation.

高三英语七选五中等难度题查看答案及解析

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。

A new report says plastics are responsible for $13 billion in damage to the oceans and the undersea environment. The findings were announced recently at a United Nations conference．　　 1.　　 .

Plastic thrown away carelessly makes its way into rivers and other waterways. 　　　 2.　 . After a while, it collects in the sea. And plastic never goes away. Plastic is not biodegradable—destroyed by bacteria or natural processes. Instead, it just breaks up into smaller pieces over time. The oceans contain a lot of chemicals and other pollutants(污染物).　 3.　　 .That means harmful material may get into our food supply.

　 4.　　 . Human beings cause pollution and they can take steps to stop it. They can use fewer single use product containers and throw plastics away correctly. Plastic recycling programs also works—where old bottles and other plastics are collected, broken down and used to make new products. We could reuse bottles in our households many times if we wish to, rather than end it after the first use. We could, when we get rid of that plastic, recycle it and reuse it, which replaces the need for raw materials.

The report also calls on companies to improve methods for using plastics. 　　　 5.　 . And it calls for information about the way plastic is thrown out or removed from use. By putting a new value on plastic, industry has a special reason to clean up the environment.

But all of the companies must join to deal with the problem.

A. Then, fish may eat the plastics.

B. But people can make a big difference.

C. Plastics should be gathered together and reused.

D. It is convenient to use plastic bags in everyday life.

E. It asks for them to better measure and control plastic use.

F. The plastic eventually reaches coastal areas and ocean waters.

G．The report tells about harm to sea life and what might be done to improve the situation.

高三英语七选五中等难度题查看答案及解析

(共5小题；每小题2分，满分10分)

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

A new report says plastics are responsible for ＄13 billion in damage to the oceans and the undersea environment．The findings were announced recently at a United Nations conference． 1.

Plastic thrown away carelessly makes its way into rivers and other waterways．　 2.　 After a while，it collects in the sea．And plastic never goes away．Plastic is not biodegradable—destroyed by bacteria or natural processes．Instead，it just breaks up into smaller pieces over time．The oceans contain a lot of chemicals and other pollutants．3.　 That means harmful material may get into our food supply．

4.　 Human beings cause pollution and they can take steps to stop it. They can use fewer single use product containers and throw plastics away correctly．Plastic recycling programs also works—where old bottles and other plastics are collected，broken down and used to make new products．We could reuse bottles in our households many times if we wish to，rather than end it after the first use．We could，when we get rid of that plastic，recycle it and reuse it，which replaces the need for raw materials．

5. It asks for them to better measure and direct plastic use．And it calls for information about the way plastic is thrown out or removed from use．By putting a new value on plastic，industry has a special reason to clean up the environment．

But all of the companies must join to deal with the problem．

A．Then，fish may eat the plastics．

B．The report also calls on companies to improve methods for using plastics．

C．The plastic eventually reaches coastal areas and ocean waters．

D．The report tells about harm to sea life and what might be done to improve the situation．

E．Plastics should be gathered together and reused．

F．But people can make a big difference．

G．It is convenient to use plastic bags in everyday life．

高三英语其他题中等难度题查看答案及解析

A new report says African governments are ill prepared to handle the growing number of people over age 65. The population in Africa  as in other parts of the world, is getting older. Currently, there are 36 million people on the continent 65 years and above. which is 3.6 percent of the population. up from 3.3 percent 10 years ago. That could rise to 4.5 percent by 2030 and 10 percent by 2050. The African development Bank is raising concerns over the shortage of health insurance and pensions (养老金).

The African Development Bank says. "Aging is highly linked with long-term physical and mental  disability and a number of long-term chronic (慢性的) conditions."

"Africa is not well prepared to care for its aging population right now. And it needs to prepare for this fact." said Professor Mthuli Ncube. the African Development Bank's chief economist. African nations spend far less on healthcare than developed nations do___ about $26per person per year. Not so many countries have well developed medical aid plans for the elderly, whether they are privately provided plans or indeed government plans. If you look at the pension plans, you will find the pension industries are not well developed in some of the countries.

Professor Mthuli Ncube said African governments failed to take action on health insurance

and pensions because they were busy with economic reforms.

Another challenge for Africa is the worsening of informal systems of social protection. That is cash and support from both the extended family and community sources.

. The African Development Bank recommends governments help carry out health insurance and pension plans. Ncube said African governments didn't have to handle the health insurance burden alone. "It is not only a must but also an opportunity for private companies to add their bit in this regard", he said. The report also recommends that African governments consider providing ways of free health services. medications and long-term health care facilities for the elderly.

1. From the first paragraph we know the facts except that ____

A. the speed of people aging is becoming quicker

B . Africa has the largest aging population

C. African governments are not well prepared to deal with the aging population

D. the shortage of health insurance and pensions adds to African governments' difficulty in dealing With the aging population

2.Which is not highly linked with the aging according to the passage?

A. Long-term physical disability.             B. Long-term mental disability.

C. Long-term chronic illnesses.              D. Long-term shortage of care and love.

3. What got in the way of developing health insurance and pensions in Africa?

A. The economic reforms.                  B. Too many old people.

C. The shortage of land.                    D. The development of the economy.

4.How can the aging problem be solved in Africa according to Ncube?

A. African governments should spend as much money on healthcare as developed countries

B. African people should save enough money to insure their health.

C. African governments should combine with private companies to finish health insurance and pension pains.

D. Private sources should take the main responsibility to help the elderly.

5.The article is most likely to be seen____

A. in a story book      B. in a newspaper   C. on a TV program     D. in a textbook

高三英语阅读理解中等难度题查看答案及解析

We produce 500 billion of plastic bags in a year worldwide and they are thrown away polluting oceans,  killing wildlife and getting dumped in landfills where they take up to 1000 years to decompose. Researchers have been unsuccessfully looking for a solution.

The 16-­year ­old Canadian high school student, Daniel Burd, from Waterloo Collegiate Institute,

has discovered a way to make plastic bags degrade(分解) in as few as 3 months, a finding that won him first prize at the Canada－Wide Science Fair, a $10 000 prize, a $20 000 scholarship, and a chance to revolutionize a major environmental issue.

Burd's strategy was simple: Since plastic does eventually degrade, it must be eaten by microorganisms (微生物). If those microorganisms could be identified, we could put them to work eating the plastic much faster than under normal conditions.

With this goal in mind, he ground plastic bags into a powder and concocted(调制) a solution of household chemicals, yeast(酵母) and tap water to encourage microbes growth. Then he added the plastic powder and let the microbes work their magic for 3 months. Finally, he tested the resulting bacterial culture on plastic bags, exposing one plastic sample to dead bacteria as a control. Sure enough, the plastic exposed to the live bacteria was 17% lighter than the control after six weeks.

The inputs are cheap: maintaining the required temperature takes little energy because microbes produce heat as they work, and the only outputs are water and tiny levels of carbon dioxide.

“Almost every week I have to do chores and when I open the closet door, I have piles of plastic bags falling on top of me. One day, I got tired of it and I wanted to know what other people are doing with these plastic bags. The answer: not much. So I decided to do something myself.” said Daniel Burd.

1.Daniel Burd won first prize at the Canada－Wide Science Fair because________.

A. he found a new kind of microorganism

B. he contributed much to environmental protection

C. he found a way to degrade plastics in shorter time

D. he could encourage microbes growth in an easier way

2.Daniel Burd exposed one plastic sample to dead bacteria to ________.

A. make the live bacteria work better

B. test how effective his method was

C. know which bacteria worked faster

D. control the temperature in the process

3.Maintaining the required temperature takes little energy because ________.

A. plastics can get hot easily

B. microbes can produce heat themselves

C. much carbon dioxide is produced

D. the temperature can be controlled

4.Daniel Burd got his idea from ________.

A. his school textbook           B. the failure of researchers

C. his everyday work            D. the practice of other people

高三英语阅读理解中等难度题查看答案及解析

The world consumes hundreds of billions of single-use plastic bags each year. They are difficult to recycle, wasteful and damage the nature. Environmental activists want to ban plastic bags or---as many communities have done ---charge a fee for them. But the plastic bag industry defends their use, saying people reuse plastic bags, and industry officials argue recycling is a matter of personal responsibility and should not be forced.

City officials say New Yorkers use 5.2 billion plastic bags each year. They are offered free with nearly every supermarket, or convenience store purchase. Many people like them, even if they sometimes feel guilty about using them. But what happens to those bags after they’ve been used in a huge environmental problem. They are found on beaches. They are caught in trees. They are swallowed by marine life.

Plastic bags are made of petroleum products and natural gas, and do not biodegrade (分解). And they are difficult to recycle. So New York City spends nearly $ 10 million dollars a year to send 100---thousand tons of plastic bags to landfills out of state.

In Washington, D.C., a five percent charge on all single-use bags led to about a 60 percent reduction and in Los Angeles County in California , a 10 cent charge on single-use bags led to a 95 percent reduction. With a 10 cent charge on bags, customers are much more likely to stop and think about whether they need a bag or not. And that’s really all that these laws are doing.

1.Who object to the limit of using plastic bags?

A. Plastic bag makers.　　　　　　　 B. Government officials.

C. Stores and supermarkets.　　　　 D. Most of the consumers.

2.Paragraph 2 mainly tells us _____.

A. the difficulty about dealing with plastic bags

B. the popularity of plastic bags in New York

C. the great convenience brought by using plastic bags

D. the usage and problems of plastic bags in New York

3.What measure does the writer introduce to reduce the use of plastic bags?

A. Reducing the production of plastic bags.

B. Charging for the use of plastic bags.

C. Offering paper bags instead of plastic bags.

D. Making people realize the harm of plastic bags.

高三英语阅读理解中等难度题查看答案及解析

Most students are for the new school rule, which says all the students 　　　 not take their cell phones into the classroom.

A. will　　　　 B. can　 　　 C. shall　　　　　　 　 D. must

高三英语单项填空中等难度题查看答案及解析

It is reported in Washington Post that an unknown terrorist group has ______ responsibility for this morning’s bomb attack.

A. claimed     B. evaluated    C. bid   D. confirmed

高三英语单项填空中等难度题查看答案及解析

There is a _______ cup on the table. Go and fetch it for me.

A. nice new big plastic   B. new plastic big nice

C. nice big new plastic   D. new nice plastic big

高三英语单项填空中等难度题查看答案及解析

A new pollen (花粉) study showed that drought was responsible for the extinction of civilizations more than 3,000 years ago during the Bronze Age.

The reason behind why the civilizations in and around modern-day Israel suddenly broke down more than 3,000 years ago has remained a mystery up until now. A new pollen study by Tel Aviv University researchers finally solved this Bronze Age mystery.

Prof. Israel Finkelstein showed that owing to serious climate changes, the entire world of the Bronze Age crumbled in a short period of time. The discovery was made on the basis of a high-resolution analysis of pollen grains taken from sediments (沉淀物) beneath the Sea of Galilee and the western shore of the Dead Sea.

Prof. Finkelstein received support from the European Research Council to conduct research aimed at reconstructing ancient Israel. Researchers of the part of the project that dealt with climate change extracted (提取) about 60 feet of samples of gray muddy sediment from the center of the Sea of Galilee in northern Israel. They had to drill through 1,000 feet of water and into 65 feet of the lake bed and were able to recover evidence dating over the past 9,000 years.

“Pollen is the most enduring organic material in nature,” explained Dr. Dafna Langgut, a pollen researcher who carried out the actual work of sampling. “These grains tell us about the plants that grew near the lake in the past and therefore prove the climatic conditions in the region.”

Researchers noted a sharp decrease in Mediterranean trees like oaks and pines in the Late Bronze Age. According to study experts, this could be because of repeated periods of drought. The droughts may have resulted in long famines, forcing people to migrate from north to south.

1.The underlined word “crumbled” in Paragraph 3 means _____.

A. settled　　　　　　　　 B. changed

C. established　　　　　　 D. disappeared

2.Prof. Finkelstein conducted the new pollen study to _____.

A. earn some money

B. recreate ancient Israel

C. learn more about local plants

D. discover the ancient civilizations

3.By conducting the study, scientists found _____.

A. Mediterranean trees were rare in the Early Bronze Age

B. climate change was to blame for the lost civilization

C. people in the Late Bronze Age starved to death

D. droughts were rare during the Bronze Age

4.The text is most probably taken from _____.

A. a travel magazine　　　　　　 　　 B. a history textbook

C. a newspaper report　　　　　　　　 D. an agricultural book

高三英语阅读理解中等难度题查看答案及解析