In making a scientific experiment, one should...

In making a scientific experiment, one should not be _____ by temporary setbacks but should stick to doing it hopefully.

A. cast down　　　　　　 B. put away　         C. taken in　　　　         D. put out

高三英语单项填空中等难度题查看答案及解析

Should we try to contact and make friends with other beings in the universe? Certainly not，says British physicist Stephen Hawking．

“If aliens（creatures from other planets）ever visit us, I think the outcome would be much as when Christopher Columbus first landed in America, which didn’t turn out very well for the Native Americans,’’ said the 68-year-old disabled scientist in a new Discovery documentary (纪实性电视节目) on April 25．

The program pictures an imagined universe where other life forms in huge spaceships hunt for resources after using up all those on their home planets．

“Such advanced aliens would perhaps become nomads(游牧民)，looking to conquer and colonize whatever planets they can reach，”warned Hawking．

On the probability of other life forms existing, he says, “To my mathematical brain, the numbers alone make thinking about aliens perfectly reasonable.”

Hawking’s concerns have frightened some people and been met with disagreement from other researchers．Paul Davies, author of the book Renewing Our Search for Alien Intelligence，thinks Hawking’s reasoning is wrong.

He argues that since Earth is about 4.5 billion years old，if intel1igent life is likely , communities of other beings may have been there for a very long time．

“If resources are the factor, then at least one group of aliens would surely have visited Earth as a destination mil1ions of years ago．

Even if other life forms do come to Earth in the near future, Davies believes comparisons with are wide of the mark(离谱的).

68. What is the article mainly about?

A. Other life forms coming to our planet．

B. Scientific evidence of other life forms．

C. Earth as the only place where human beings can survive．

D. Hawking’s belief that other life forms may exist in the universe．

69. Which of the following ideas is opposed to Hawking’s view?

A. Other life forms exist in the universe．

B. 0ther life forms may be more intelligent than human beings．

C. We should try to contact other 1ife forms from other planets．

D. Other life forms may exist in more than one part of the universe．

70. Paul Davies didn’t agree with Stephen Hawking ,believing that ________．

A. the universe is running out of resources

B. humans are the best creatures in the universe.

C. it is a good idea to avoid meeting with other life forms

D. Davies doesn’t think it proper to compare aliens with Columbus

71. Hawking referred to Christopher Columbus as an example to ____．

A. inspire interest in the universe

B. draw attention to other planets in the universe

C. warn people to watch out for other life forms

D. urge further exploration of the universe~

高三英语阅读理解中等难度题查看答案及解析

. Not one in one hundred children exposed to the disease ______ likely to develop it.

高三英语单项填空简单题查看答案及解析

Her failure in the experiment suggested that she ______ the professor’s instructions.

高三英语单项填空中等难度题查看答案及解析

Scientific experiments __________ by students without the teachers’ instructions can be dangerous.

高三英语单项填空简单题查看答案及解析

Customers should learn to ________ advertisements so as not to be misled by them.

A. pick out         B. make use of      C. reflect on    D. test out

高三英语单项填空困难题查看答案及解析

. I support your decision, but I should also make it clear that I am not going to be _____ to it.

高三英语单项填空简单题查看答案及解析

A scientific approach to reducing poverty’s many harmful effects via field experiments in schools and other real-world settings has won the Nobel Memorial Prize in Economic Sciences.

Economists Abhijit Banerjee and Esther Duflo, both of MIT, and Michael Kremer of Harvard University will receive equal shares of the prize of 9 million Swedish kronor. Duflo is only the second woman ever to be awarded the economics Nobel. “Poverty has deep roots, and we use an experimental approach to examine particular aspects of this problem and determine what interventions (干预) work.” Duflo said.

More than 700 million people globally live in extreme poverty. Half of the world’s children leave school without basic language or math skills. Roughly 5 million children under age 5 annually die from diseases that could have been prevented with inexpensive treatments.

The three winners design and test interventions aimed at specific ways to alleviate poverty’s effects on education, health care and other areas. Such studies are especially important because policies intended to fight poverty can often cause opposite results.

In the mid-1990s, Kremer led a team that tested a range of interventions aimed at improving learning among students attending schools in western Kenya. Banerjee and Duflo, often with Kremer, then performed similar studies in other countries. One important line of research developed “Teaching at the Right Level” programs, which enable teachers in low-income, developing nations to target instruction to students’ learning levels. Teachers in these programs learn ways to keep students from falling behind rather than forcing them through a one-size-fits-all curriculum for each grade.

A 2011 study led by Duflo, for instance, found that grade 1 test scores in a Kenyan school increased when teachers divided students into smaller classes based on their initial learning levels.

A string of studies in the. same vein led by the 2019 winners took randomized controlled trials and field experiments from ignored status to standard practice in developing nations.

These studies showed that the virtually unanswerable question “How can we fight global poverty?” could be broken into smaller, testable questions such as “Why do children not attend school?” and “Why do small-scale farmers not use technologies such as modern seeds and fertilizer (肥料) that are known to be profitable?”

1.What does the underlined word “alleviate” in Paragraph 4 most probably mean?

A.relieve

B.remove

C.control

D.transform

2.It can be inferred that the method the 2019 winners applied to education　　　 .

A.is more suitable for high-level students

B.is an intervention initially created by Duflo

C.will surely get rid of the deep roots of poverty

D.takes into consideration students learning levels

3.What can we learn from the experimenting approach the three economists adopt?

A.The authorities concerned should make policies based on scientific findings.

B.Field experimenting is the most scientific way to find whether interventions work.

C.Education should be paid more attention to due to its important part in fighting poverty.

D.It may be helpful to narrow down the scale of a problem by focusing on specific aspects.

高三英语阅读理解简单题查看答案及解析

Having a roommate can be one of the best experiences in college or, easily, one of the worst 　 1.　　 Follow these tips to avoid the common mistakes that turn good roommate relationships sour.

◇Talk things out.

Communication is key. If something happens, sit down with your roommate and have a face-to-face conversation. I've seen roommate relationships fall apart because something happens and ,instead of talking to each other, the two start complaining about their roommates behind their backs 2.

◇Don't expect to be best friends.

Some roommates become the best of friends, and some don't. Don't put pressure on yourself or your roommate, especially when you first meet.　 3.　 　　 And if your roommate doesn't end up being your best friend, don't worry.

◇Ask before you take.

This applies to food, clothes and anything else. If you want to keep a relationship going, show your roommate that you have respect for what is his or hers by asking first. 4.

◇Clean up after yourself.

This should to without saying. Don't be lazy. Or, at least, don't bury your roommate in your clothes and garbage. Most people I've come across in college are messy. 5.　　 But being considerate with where you put your stuff will help you avoid conflict.

A. So you need to think twice before you help your roommates out.

B. This creates nothing but awkward. situations and unhappiness.

C. Even if you both agree to share everything, you should still ask.

D. You don't have all the time to clean your room and keep it organized.

E. It all starts with you to have a good relationship with your roommate.

F. Sometime you get stuck with someone who has tons of negative energy.

G. Remember, you're trying to make a new friend, not to scare your roommate away.

高三英语信息匹配中等难度题查看答案及解析

What we should be thinking about now is how to make up for the lost time, not who is _______.

A. blaming　　 　　　 B. blamed

C. to be blamed　　 D. to blame

高三英语单项填空困难题查看答案及解析