阅读理解。
In many countries, unusual names for children are becoming more popular, especially when more and
more stars give their children special names. In Britain, you can call a child almost anything you like except
dirty words.
Some parents choose names which come from popular culture. Because of the film the Lord of the Rings
(指环王), six boys were named Gandalf. Names about sport are very common, too. Since 1984, 36 children
have been called Arsenal after the football team.
Other parents like to make up names, or combine (合并) two names to make a special one. A mother in
Britain invented the name Tiaamii for her daughter. She combined the names Thea and Amy (the two
grandmothers).
In China, there are some rules about names ―- you can't use foreign letters or symbols (符号) in a Chinese
name. For example, parents are not allowed to name their baby @. In New Zealand, a name beginning with a
number is not allowed. Other countries have stricter rules about calling children. For example, Japan,
Denmark, Spain, Germany and Argentina have a list of names. Parents must choose the names in the lists for
their children.
In Britain, some old-fashioned (过时的) names have become popular again, such as Maisie or Ella for a girl,
and Alfie or Noah for a boy. But the most popular names are not the strange ones. The top names are very
traditional--Jack and Thomas for boys, or Grace and Jessica for girls.
1. In Britain, people can't use ______ words in their children's names.
A. strange
B. popular
C. old-fashioned
D. dirty
2. Thirty-six children were called Arsenal because of a ______.
A. movie star
B. football star
C. football team
D. film
3. According to the passage, which of the following names is NOT allowed?
A. Gandulf in Britain
B. Tiaarnii in Britain
C.李@in China
D. Real in New Zealand
4. In ______, people must name their children according to the list.
A. Japan
B. Britain
C. America
D. China
5. From the last paragraph (段落), we know ______ today.
A. you can name a girl Alfie in Britain
B. strange names are the most popular in Britain
C. people don't use old names in Britain
D. the most popular names are the traditional names in Britain
，用天平测出质量m，根据排水法用量筒测出体积V，代入公式即可算出密度，实验中注意：①为防止水对物体质量大小的影响，应先称量待测物体的质量，再测量待测物体的体积；②在调节天平平衡时要将平衡螺母向指针偏转的相反方向调节；③物体的体积通过量筒中两次液面的体积差进行计算．天平的使用规则：根据实验步骤中天平的调平、左物右码都已注意到，且要注意加减砝码时要用镊子．
17.26g/cm3