问题 选择题

---- Why do you always lie to our mother you love her cooking?

---- It’s only a white lie, so __________.

A.my pleasure

B.don’t mention it

C.don’t bother

D.it’s no big deal

答案

D

题目分析:考查交际用语。A我的荣幸(帮忙的事情已经做完);B没关系;C别麻烦;D这没有什么大不了的。句意:—你为什么总是要对你妈妈说谎说你喜欢她做的菜?—这只是一个善意的谎言。没有什么大不了的。根据句意说明D正确。

点评:交际用语的考查要根据上下文的含义以及逻辑关系,也要注意中西方文化在表达上的差异,要有跨文化的意识。同时要特别注意西方的文明礼仪在交际用语中的体现。如:在面对对方的赞扬的时候,应该使用Thanks.等等。也要把语法和句意相融合在一起,在平时的学习中要注意积累一些常见的交际用语的句式。

选择题
单项选择题

Arsenic, a naturally occurring poison and carcinogen found in ground water, is ply linked to adult-onset diabetes, U. S. researchers said on Tuesday. Odorless, tasteless, colorless and easily soluble in water or wine, arsenic has long been a feared poison. A heavy dose is detectable in a corpse, but researchers say small amounts of arsenic may sicken people gradually.

Dr. Ana Navas-Aeien and colleagues at Johns Hopkins University in Baltimore found a " relatively p " association between commonly found levels of arsenic in urine and type 2 diabetes in a study of American adults. " It seems there is maybe no safe level of arsenic. " Navas-Acien said in a telephone interview. " Worldwide it’s a huge problem, " she said. " As water becomes a scarce resource. the situation becomes even more serious. "

Arsenic raises the risk for cancers of the bladder, lung, kidney, skin and, possibly, the pros tate, Navas-Acien said. The 20 percent of nearly 800 study participants who had the most arsenic in their bodies, a tolerable 16. 5 micrograms per liter of urine, had 3. 6 times the risk of developing late-onset diabetes than those in the bottom 20 percent, who had 3 micrograms per liter. Levels of arsenic were 26 percent higher in people with late-onset, or type 2, diabetes than those without the disease, the study found.

The U. S. government sets a limit for drinking water at 10 micrograms of arsenic per liter, which is exceeded in the water consumed by 13 million Americans who mostly live in rural areas that rely on wells to bring up ground water, the researchers wrote in the Journal of the American Medical Association. Arsenic contaminates drinking water for millions of people in Bangladesh, parts of Central Europe, Chile, Argentina and the western United States, where ground water is the source of drinking water and the land has higher concentrations of arsenic.

Overall, 7. 8 percent of Americans are believed to have diabetes, although some do not know it. At least 90 percent of cases are the type 2 variety, in which the body loses its ability to use insulin properly. Navas-Acien said arsenic may play a significant role in diabetes incidence, but it is difficult to say how much. Arsenic can accumulate in the body, and can ruin the body’s ability to use insulin and perform the vital task of converting blood sugar into energy. Normally, insulin fits into cells via molecular doorways called receptors, which in turn signal the cell to move glucose inside, but arsenic enters the cell and somehow blocks the activity. Seafood is another source of arsenic, but the organic form found in shellfish and some fish has a carbon molecule attached and poses no risk to health, she said.

From the passage, we know that arsenic is a bigger threat for people who()

A. use ground water as the source of drinking water

B. drink contaminated water a lot

C. are from European countries

D. live in urban areas