题目内容

He would’t leave the TV set，______ he was going to have an important exam the next day.

A. even if B. as if

C. as though D. even so

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用because，because of填空

1.________________ the storm，he didn’t go there.

2._________ it is getting late，we’d better hurry up.

3.He realized she was crying ________________ what he said.

New mercury(汞) threat to oceans from climate change

Rising temperatures could boost mercury levels in fish by up to seven times the current rates, said Swedish researchers in an article published in Science Journal. They’ve discovered warming increases levels of the toxin (毒素) in sea creatures. In experiments, they found that extra rainfall drives up the amount of organic material flowing into the seas. This alters the food chain, adding another layer of complex organisms which boosts the concentrations of mercury up the line.

Mercury is one of the world’s most toxic metals, and according to the World Health Organization, is one of the top ten threats to public health. The substance at high levels has been linked to damage to the nervous system, paralysis and mental impairment in children.

The most common form of exposure to mercury is by eating fish containing methylmercury(甲基水银), an organic form of the chemical which forms when bacteria react with mercury in water, soil or plants. Levels of mercury in the world’s ecosystems have increased by between 200% and 500%, since the industrial revolution say experts, driven up by the use of fossil fuels such as coal.

In recent years there have been concentrated efforts to limit the amount of mercury entering the environment, with an international treaty, called the Minamata Convention, signed by 136 countries in place since 2013.

Researchers hope that the Minamata treaty will be successful and countries reduce the amount of mercury that is being produced. Otherwise this discovery of a previously unknown source could have impacts for human health.

Other researchers in the field say that the new study highlights important issues that have previously been little known.

“This work experimentally proves that climate change will have a significant effect of methylmercury budgets in coastal waters and its accumulation in fish,” said Milena Horvat from the Jozef Stefan Institute in Slovenia.

“This work will also help us understand the formation of mercury in fish and help reduce mercury from emission sources (primarily industrial).”

1.Where did Swedish researchers find warming increases levels of the toxin?

A. In the Pacific Ocean. B. On the Continent.

C. In Red Sea. D. In sea creatures.

2.What can cause damage to the nervous system?

A. Exposure to mercury. B. Mercury at high levels.

C. Methylmercury. D. The use of fossil fuels.

3.How does methylmercury form?

A. By limiting the amount of mercury entering the environment.

B. By reducing the amount of mercury.

C. When bacteria react with mercury in water, soil or plants.

D. When climate change returns to normal.

4.What can we know from Milena Horvat’s words?

A. Climate change will increase the levels of mercury in food.

B. Levels of mercury in the world’s ecosystems have increased by between 200% and 500%.

C. The Minamata Convention has been signed by 136 countries in place since 2013.

D. Mercury reduction from emission sources can be beneficial to fish.

Choosing the right college for you is not so easy.You should have a general idea of what you want and don't want.The idea can guide you to find what fits your needs best.1.

Think about what major you want to study in college.If you know that,just look at colleges that have your major. 2.So think carefully about your major and interests before choosing one.

Where the college is located matters.Anyone who tells you the location isn't important is lying.3.If you look forward to working in the publishing industry,New York may be your best bet.If your parents want you to stay close to home,please don't consider anywhere that requires a plane ticket to get to.

Think about how much you can afford.Are your parents,paying for your education? If so,how much are they willing to spend?Do you have to contribute anything? Financial aid and scholarship exist,but don't count on anything. 4.These are all things to consider before you fall in love with a college.

Make sure you're going to spend time with the right people.The cool thing about college is that each different one attracts different kinds of people.For the first thing in your life,you get to choose where you get to spend your time and who you get to spend it with.5.Make sure that the people you're with for four years are your kind of people.

A.College is about learning what you love.

B.You'd better choose a major that is popular.

C.Go to the college with some people you like.

D.Are you willing to go into major debt over a school?

E.Remember,above all,it's the people that make the place.

F.If you don't like cold weather,stay away from northern schools.

G.These guidelines will help figure out what college you want to go to.

A student is learning to speak British English.He wonders(想知道)：Can I communicate(交际)with Americans？Can they understand me？Learners of English often ask：What are the differences between British and American English？How important are these differences?

Certainly，there are some differences between British and American English.There are a few differences in grammar.For example，speakers of British English say“in hospital”and“Have you a pen？”；Americans say “in the hospital”and“Do you have a pen？”．Pronunciation is sometimes different.Americans usually sound “r”s in words like“bird”and“hurt”．Speakers of British English do not sound “r” in these words.There are differences between British and American English in spelling and vocabulary.For example，“colour”and“honour”are British；“color”and“honor”are American.

These differences in grammar，pronunciation，spelling and vocabulary are not important，however.For the most part，British and American English are the same language.

1.According to this passage，a student who is learning to speak American English might be afraid that ______.

A. British people cannot understand him

B. American people cannot understand him

C. the grammar is too hard for him

D. the spelling is too hard for him

2.American English and British English are different in ________.

A. spelling B. pronunciation

C. grammar D. all of the above

3.What is NOT mentioned in the passage?

A. Whether there are differences between British English and American English.

B. Whether British English and American English are one language or two.

C. How the differences between British English and American English came about.

D. How important the differences are.

4.Most ______ say，“Do you have a watch？”

A. British people B. Americans

C. children D. teachers

5.According to this passage，British people and Americans have ________ difficulty in understanding each other.

A. little B. much

C. some D. great

－He must be from northeastern China，which I can tell from his ______.

－It may not be true，because some people can speak several ______.

A. accent；accent B. accent；dialects

C. dialect；accent D. dialect；dialects

Being a good friend isn’t always easy，but taking the time to develop a lasting friendship is worth the effort.As the years pass，you will realize that each friendship you keep is priceless.1. To be a good friend and deepen a friendship，just follow these steps.

Keep your promises.

Don’t ever make a promise that you can’t keep.If you say you’ll hang out with a friend and an unexpected situation arises，explain the situation.Give your friend a gift and tell him or her you are sorry.Nobody is perfect，and it’s okay if you break a promise once in a blue moon.2.

Apologize when you’ve made a mistake.

3.Though your friend won’t be happy that you made a mistake，he or she will be very pleased that you admit it instead of just pretending that nothing is wrong.

4.

To be truly supportive，you will have to be able to watch out for your friend when he/she is having a difficult time.If you sense that your friend is getting into some trouble，help him or her away from the situation by not being afraid to speak up about it.

Give your friend some space when he or she needs it.

Part of being supportive means supporting the fact that your friend won’t always want to spend time with you.Learn to step back and give your friend space.5. Don’t be jealous (嫉妒的) if your friend has lots of other friends.

A．However，don’t make it a regular thing.

B．Help your friend deal with his or her struggles.

C．Learn to forgive your friend and move forward.

D．Of course，to have a good friend，you must be one.

E．If you want your friend to believe in you，you can’t act like you’re perfect.

F．Understand if your friend wants to be alone or to have a walk with other people.

G．Take the time to truly understand your friend when he or she is talking to you.

Martin ______ his dog to lie down under the big tree.

A. made B. had

C. promised D. ordered

Through hard work you will ________ the respect of your fellow workers.

Which of the following is not appropriate?

A. gain B. earn

C. win D. accept

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