The country has already sent up 3 unmanned spacecraft, the most recent at the end of last March.
A．was launched B．being launched
C．has been launched D．having been launched
A study shows that students living in non-smoking dormitories are not likely to the habit of smoking.
A．pick up B．turn up C．draw up D．make up
—Did Alan enjoy seeing his old friends yesterday?
—Yes, he did. He his old friends for a long time.
A．wouldn’t see B．hadn’t seen C．didn’t see D．hasn’t seen
will do good to a senior student to do a part-time job when she wants to know more about society
A．As B．It C．That D．He
It is often said that teachers have very easy life.
A．the; a B．/; a C．the; / D．/；the
It seems like every day there's some new research about whether our favorite drinks are good for us. One day, science says a glass of red wine a day will help us live longer. The next day, maybe not. It seems journalists are pretty interested in wine research and the same might be said for coffee. Now there's been a lot of research into whether coffee's good for our health "the results have really been mixed"，admits Neal Freedman who led the coffee study and published his findings in a medical journal recently. "There's been some evidence that coffee might increase the risk of certain diseases and there's also been maybe more recent evidence that coffee may protect against other diseases as well".
Freedman and his colleagues undertook the biggest study yet to look at the relationship between coffee and health. They analyzed data collected from more than 400，000 Americans ages 50 to 70 participating in the study. "We found that the coffee drinkers had a modestly lower risk of death than the non-drinkers， he said. Here's what he means by "modestly": those who drank at least two or three cups a day were about 10 percent or 15 percent less likely to die for any reason during the 13 years of the study when the researchers looked at specific causes of death, coffee drinking appeared to cut the risk of dying from heart disease, lung disease injuries, accidents and infections.
Now, Freedman stressed that the study doesn't prove coffee can make people live longer .A study like this can never prove a cause-and-effect relationship. All it can really do is to point researchers in the right direction for further investigation. And even if it turns out that coffee is really good for you, scientists have no idea why.
1.According to the first paragraph，reporters would like to know the research findings of_______.
A． tea B． beer C． coffee D． wine
2.According to the passage, which of the following is TRUE?
A． Freedman and his colleagues hired 400，000 Americans to collect date.
B． People who took part in Freedman's research are about 50 to 70 years old.
C． About 400, 000 Americans worked for Freedman's team for 13 years.
D． People who are 50 to 70 years old seldom drink wffee.
3.According to the author, scientists________.
A． have already proved that coffee is good for human health
B． have a long way to go before they find a way to study coffee
C． have avoided the cause-and-effect approach to study coffee
D． are still unable to figure out why coffee is good for us
4.Which of the following can be the best title?
A． The Magical Effects of Coffee
B． Neal Freedman and His Research
C． Can Coffee Help You Live Longer?
D． A Cup of Coffee A Day Makes Diseases Away
