In his composition there were ___________ (除了少许拼写错误以外没有其他错误).
In his composition there were ___________ (除了少许拼写错误以外没有其他错误).
In his composition there were ___________ (除了少许拼写错误以外没有其他错误).
Pat didn't hand in his composition on time.
A.Right.
B.Wrong.
C.Doesn't say.
One day the teacher was teaching a P. E. lesson.
A.True.
B.False.
第二节 短文理解1
阅读下面短文,从[A](Right)、[B](Wrong)、[C](Doesn't Say)三个判断中选择一个正确选项。
Sam and Pat are brothers. They are in the same class. Sam works harder and studies better than his brother Pat. One day the teacher asked the class to write a composition (作文). Its tithe (题目)was "My mother." Sam wrote a composition and was ready to hand it in to the teacher when Pat said. "Wait a minute, Sam. Lei me have a look." Pat read it and copied it.
The next day, the teacher asked Pat, "How is it that your composition is exactly the same as Sam's, Pat?"
"Because we have the same mother, haven't we?" answered Pat.
Sam and Pat are schoolboys.
A.Right.
B.Wrong.
C.Doesn't say.
His composition was so confusing that I could hardly make any of it whatsoever.
A.meaning
B.message
C.information
D.sense
A.apart from
B.besides
C.except
D.except for
Philip is good at writing.Last week his composition was once again ______ for special praise.
菲利普很擅长写作。上周他的作文又被挑选出来予以特别奖励。
A.finishing writing
B.should finish the writing
C.finish writing
D.finished writing
When did the pianist begin to play his own composition?
A.At the age of 5.
B.At the age of 10.
C.At the age of 15.
D.At age the of 25.
A、made to rewrite
B、was made to rewrite
C、made rewrite
D、was made rewrite
Hair Detectives
Scientists have found a way to use hair to figure out where a person is from and where that person has been. The finding could help solve crimes, among other useful applications.
Water is central to the new technique. Our bodies break water down into its parts: hydrogen(氢)and oxygen. Atoms (原子) of these two elements end up in our tissues and hair.
But not all water is the same. Hydrogen and oxygen atoms can vary in how much they weigh. Different forms of a single element are called isotopes(同位素). And depending on where you live, tap water contains unique proportions of the heavier and lighter isotopes of hydrogen and oxygen.
Might hair record these watery quirks(古怪举动;怪僻). That's what James R. Ehleringer, an environmental scientist at the University of Utah in Salt Lake City, wondered.
To find out, he and his colleagues collected hair from barbers and hair stylists(发型师)in 65 cities in 18 states across the United States. The researchers assumed that the hair they collected came from people who lived in the area.
Even though people drink a lot of bottled water these days, the scientists found that hair overwhelmingly(压倒性地) reflected the concentrations of hydrogen and oxygen isotopes in local tap water. That's probably because people usually cook their food in the local water. What's more, most of the other liquids people drink including milk and soft drinks contain large amounts of water that also come from sources within their region.
Scientists already knew how the composition of water varies throughout the country. Ehleringer and colleagues combined that information with their results to predict the composition of hair in people from different regions. One hair sample used in Ehleringer's study came from a man who had recently moved from Beijing, China, to Salt Lake City. As his hair grew, it reflected his change in location.
The new technique can't point to exactly where a person is from, because similar types of water appear in different regions that span a broad area. But authorities can now use the information to analyze hair samples from criminals or crime victims and narrow their search for clues(线索).
What does the writer say about tap water? Which of the following is NOT correct?
A.Tap water reflects the concentrations of hydrogen and oxygen isotopes in different regions.
B.Tap water is a kind of soft drink in the United States.
C.Tap water contains unique proportions of isotopes of hydrogen and oxygen.
D.Tap water is used to cook food.