[单项选择]Many types of rock are ______ from volcanoes as solid, fragmentary material.
A. ejected
B. injected
C. propelled
D. flung

[单项选择]Many types of rock are ______ from volcanoes as solid, fragmentary material.
A. ejected
B. injected
C. propelled
D. flung

[单项选择]He had never given a speech to so many people, so he felt （）
A. exciting
B. stupid
C. disappointed
D. nervous

[单项选择]Many scientists are so convinced of the benefits of challenging the brain that they are putting it into practice in their lives.（）
A. 许多科学家都确信，在他们的生活中，经常练习挑战大脑，就会带来效益。
B. 许多科学家都对勤于动脑的益处确信不移，他们在自己的生活中也努力实践着。
C. 许多科学家都如此确信挑战大脑会带来利益，他们的实际生活证实了这一点。
D. 许多科学家都相信，他们生命中所实践的就是对人的大脑挑战，这种挑战是有益的。

[单项选择]The speaker did not mention many facts, so we asked him to be more __________ .
A. specific
B. special
C. particular
D. respective

[单项选择]With so many of the deaths each year from around the world directly related to poor health choices we make, world health leaders have set a goal of lowering the number of preventable deaths by 25% from 2010 rates by 2025. That would save 37 million lives over 15 years. Reporting in the journal Lancet, public health experts note that the ways to prevent those deaths aren’t surprising. But acting on those strategies will take individual and political will. Here’s how the experts hope to do it.
Not smoke. The UN General Assembly set a target of cutting smoking around the world by 30% by 2025. Already, higher-income nations that already adopted smoking bans in public places and instituted tobacco taxes have seen drops in smoking rates, however, residents in lower-income nations continue to light up at high rates.
Limit excessive drinking. While moderate amounts of alcohol have been linked to some health benefits, overindulging can increase the risk of certain cancers and liver di
A. Both politicians and individuals wish to put the strategies into practice.
B. Conducting those strategies needs to consider both personal and official will.
C. Carrying out those strategies needs both individual and governmental support.
D. Either individual or government can carry out those strategies.

[单项选择]The company has received many complaints from customers who believe that our rates are far from （）.
A. allowable
B. satisfied
C. trustworthy
D. reasonable

[单项选择]Many banks work with so many different customers and accounts that they need（） to record all transactions.
A. deposit slips
B. computers
C. parties

[填空题]
1. Do you know a child who survived leukemia Do you have a mother, sister or aunt whose breast cancer was found early thanks to a mammogram Do you have a friend or coworker who quit smoking to reduce their risk of lung cancer Each of these individuals benefited from the American Cancer Society’s research program.
2. Each day scientists supported by the American Cancer Society work to find breakthroughs that will take us one step closer to a cure. The American Cancer Society has long recognized that research holds the ultimate answers to the prevention, diagnosis and treatment of cancer.
3. As the largest source of nonprofit cancer research funds in the United States, the American Cancer Society devotes over $100 million each year to research. Since 1946, they’ve invested more than $2.4 billion in research. The investment has paid rich dividends: In 1946, only one in four cancer pat