27、根据下列短文内容，在短文后的空格处填上一个恰当的词，使短文完整、通顺。

Tang Ling often smoked cigarettes（香烟） in his school’s washing room. He started smoking  1  the age of 14. One day he learnt that the NBA star Yao Ming, an ambassador（大使） to the Chinese Association on Tobacco Control （中国控烟协会）, asked people not to smoke. Yao Ming was Tang’s favorite star,  2  his words meant a lot to him. He decided to  3 up smoking.

    According to the Chinese Association on Tobacco Control, about 350 million Chinese smoke.  Among  4  , 50 million are teenagers. Sun Jiangping of Beijing University said, “ Teenagers can get cigarettes  5  , especially when their parents smoke or shops  6   cigarettes to them. It’s very important   7   parents to help their children stop smoking.”

A 15-year-old boy named Li Kun from Beijing said his   8   didn’t smoke. Because they thought smoking could make people feel badly ill, they only allowed him to play with friends without smoking. Living in such a good family helped Li say  9  to cigarettes. Some of his smoking classmates once told Li that smoking made boys look   10   , but Li disagreed. He said, “Smoking is unhealthy and it’s not cool at all. Please stop smoking now!”

25、As we know, Chongqing has changed a lot. Most of the people feel much safer now. More and more trees are being planted in the city. And every day you can see many old people play sports everywhere. The change makes the people in the city live a happy life. The small survey below is from the people who live in Chongqing. One hundred persons were chosen to answer the questions last week.

1. From the survey, _______ of the people in Chongqing care about health.

A．41%                  B．80%                   C．39%                  D．52%

2. Most people think working in Chongqing is _______.

A．bad                   B．good                  C．hard                 D．sad

3. From the survey, we know most people want to live ________.

A．in a busier place   B．in a quieter place   C．in a greener place   D．on the mountain

4. According to the passage and the survey, we know that ________.

A．most people plan to change their living places

B．in Chongqing all the people have a lot of food

C．the people in Chongqing don’t like planting trees

D．the change in Chongqing makes people enjoy living there

21、用方框中所给单词的适当形式填空，使短文通顺、正确、连贯（每个单词限用一次）。

Naming the Baby

Parents always think their babies~ are very special．They want others to   1   their children．For this reason，they sometimes give their children unusual   2  ．They may choose names such as Chelma，Ukiah，Brianna，or Elvira．There are some advantages to this practice．A child who is   3   an uncommon name may feel special from childhood．  4   ，sometimes we remember people with unusual names   5  than we remember people with ordinary names．

__6  ，unusual names can cause problems．They can be hard for teachers and friends to pronounce．They can also be hard to spell，  7   computers may automatically（自动的） change them．For example，Jule may become July．Some people may have a bad impression on an unusual name   8  they even meet the person． 9  of all，other children some- times don't like kids with uncommon names．The message for parents is，" Think   10  before you give your child an unusual name．’’ 

19、In fall 2006，the National Basketball Association （NBA）started using basketballs made with synthetic ，or man-made ，material instead of leather（皮革）．They made the change be- cause they wanted every basketball they use to feel and bounce（弹起）the same．Not all leather balls are exactly alike in weight or how they bounce，but the synthetic balls are．

However，some players complained right away that the new balls bounced differently and were actually harder to control than the leather ones．

Physics helped answer questions about why the new balls felt different．For example，the scientists studied friction（摩擦力），which in this case affects the ability of a player to hold onto a ball．"The greater the friction，the better it will stick to his hand，"explains a scientist．

Tests on both wet and dry balls showed that while the synthetic ball was easier to hold onto when dry，it had less friction and became much harder to hold onto when wet．That's because sweat（汗水） stays on the surface of the synthetic balls but gets taken into the leather balls．

The scientists also tested bounce and found that the logo （商标）printed on the new balls made their surface uneven（不平） and caused them to bounce a little strangely com- pared with the leather balls．

In January，the NBA went back to using the leather bails．They aren't perfect，but for now，that's just the way the ball bounces．

1．Why were the synthetic balls expected to be used in NBA according to the text?

       A．Because they are easier to control．           B．Because they waste less material．

       C．Because they look exactly alike．             D．Because they feel and bounce alike．

2．The ball is easier to hold on to_________

A．when friction is greater                    B．when friction is less

C．when it is heavier                         D．when it bounces strangely

3．The synthetic ball bounces differently from the leather one mainly because _________

A．it is wet                                  B．it is dry

C．there's a logo on it                       D．its weight remains the same

4．It can be inferred（推断） from the text that _________．

A．a synthetic ball takes in water faster than a leather ball

B．a leather ball is more difficult to make than a synthetic one

C．a synthetic ball is more expensive than a leather ball

D．a leather ball may increase its weight during a game

5．The underlined word" They" in the last paragraph refers to __________．

A．the synthetic balls                        B．the leather balls

C．the ball players                          D．the scientists