【名词&注释】
年轻人(stripling)、有理数(rational number)、自然数(natural number)、正整数(positive integer)、密切相关(closely related)、之所以(the reason that)、相反数(opposite number)
[填空题]下列说法正确的是（ ）
查看答案&解析
举一反三：
[单选题]小明在做家庭小实验时，把下列物质分别放入适量水中并充分搅拌，其中不能得到溶液的是（ ）
A. 面粉
B. 纯碱
C. 食盐
D. 白酒
[单选题]化学与人体健康密切相关。市场上有“高钙牛奶”、“加氟牙膏”、“葡萄糖酸锌”等商品，这里的“钙、氟、锌”应理解为
A. 原子
B. 元素
C. 分子
D. 单质
[单选题]I’ll go for a walk with you if it ____ tomorrow.
A. won’t rain
B. doesn’t rain
C. will rain
D. not rains
[单选题]18．
A. If
B. No matter
C. Although
D. As
[单选题]以下说法有误的一项是（ ）
A. 课文围绕中心，夹叙夹议，层次清楚地阐明了“书非借不能读”的道理
B. 课文多处运用对比方法，从正反两方面去阐明事理。
C. “必虑人逼取，而惴惴焉摩玩之不已”，这句从描写角度来看是运用了动作描写。
D. 作者写自己的不幸和黄生的幸运是要黄生珍惜少时光阴，专心读书。
[单选题]BHip-hop dancing(街舞) is popular with many young people today． They like it because they can invent their own moves． They use this dance to show their love for life． It also shows that they feel good about life，that they just want to be themselves and enjoy life，and that they are not afraid of problems．
A. It first began in the 1980s in the U． S In early times，it was seen in New York and Los Angles． At that time，many young black people often danced to the music in the streets． They used their legs，arms，heads and even shoulders to dance． Many young people still use most of these moves today．
B. Some people performed Hip-hop dancing in the movie． People enjoyed their perform-ance． They began to dance like them． Then it became popular． There are two kinds of Hip-hop dancing:new school and old school． More and more young people are learning Hip-hop dancing．People believe that it is a good way to exercise their bodies，and that it is good for their health．
C. Young people like Hip-hop dancing because ________
D. it has a history of more than 20 years
E. it first began in the U． S．
F. they can invent their own moves
G. many young black people often dance it
[单选题]23．Mary doesn’t like to______ ．
A. go to school
B. be late
C. get up early
D. live in China
本文链接：https://www.zhukaozhuanjia.com/download/yqg9ge.html
