【题目】(1)Na位于元素周期表第 周期第 族;S的基态原子核外有 个未成对电子;Si的基态原子核外电子排布式为 。

(2)Cu+基态核外电子排布式为 。

(3)基态铁原子有 个未成对电子,Fe3+的电子排布式为 。

(4) 31Ga基态原子的核外电子排布式是 。

(5))铝原子核外电子云有 种不同的伸展方向,有 种不同运动状态的电子。

【题目】回答下列问题：

(1)从鸡蛋白的溶液中提取蛋白质的方法有________和________。

(2)鸡蛋腐烂时，常闻到有刺激性气味的气体，该气体主要是________，说明蛋白质中含有________元素。

(3)误食重金属盐会中毒，这是因为_________________。

(4)浓硝酸溅到皮肤上，使皮肤呈现________色，这是由于浓硝酸和蛋白质发生了________反应的缘故。

(5)鉴定一种织物的成分是真丝还是人造丝，可各取一小块进行________，这是因为______________________。

【题目】B

The Winter Olympics is also called the White Olympics. At this time, many colorful stamps are published to mark the great Games. The first stamps marking the opening came out on January 25, 1932 in the United States for the 3rd White Olympics. From then on, publishing stamps during the White Olympics became a rule.

During the 4th Winter Olympic Games a group of stamps were published in Germany in November 1936. The five rings of Olympics were drawn on the front of the sportswear. It was the first time that the rings appeared on the stamps of the White Olympics.

In the 1950s, the stamps of this kind became more colorful. When the White Olympics came, the host countries as well as the nonhost countries published stamps to mark those Games. China also published four stamps in February 1980, when the Chinese sportsmen began to take part in the White Olympics.

Japan is an Asian country that has ever held the White Olympics. Altogether 14,500 million stamps were sold to raise money for this sports meet.

Different kinds of sports were drawn on these small stamps. People can enjoy the beauty of the wonderful movements of some sportsmen.

【1】The world made it a rule to publish stamps to mark the great world Games_____________.

A. after the year 1936

B. after the 3rd White Olympics

C. before the 3rd White Olympics

D. before the year 1932

【2】The Winter Olympics is held once_____________.

A. every two years

B. every three years

C. every four years

【3】 Which of the following is TRUE?

A. Only the host countries can publish stamps to mark those Games.

B. Only the nonhost countries can publish stamps to mark those Games.

C. All the countries can publish stamps to mark those Games.

D. Japan can’t publish stamps to mark those Games.

【4】What may appear on the stamps of the Winter Olympics?

A. Basketball. B. Table tennis.

C. Football. D. Skating.

【题目】某有机物A分子式为CxHyOz,15 g A完全燃烧生成22 g CO2和9 g H2O。

(1)该有机物的最简式是____________。

(2)若A是一种无色具有强烈刺激性气味的气体，具有还原性，则其结构简式是__________。

(3)若A和Na2CO3混合有气体放出，和醇能发生酯化反应，则A的结构简式为______________。

(4)若A是易挥发有水果香味的液体，能发生水解反应，则其结构简式为____________。

(5)若其分子结构中含有6个碳原子，具有多元醇和醛的性质，则其结构简式为____________。

【题目】实验室制备硝基苯的主要步骤如下：①配制一定比例的浓硫酸与浓硝酸的混合酸，加入反应器中；②向室温下的混合酸中逐滴加入一定量的苯，充分振荡，混合均匀；③在50～60℃下发生反应，直至反应结束；④除去混合酸后，粗产品依次用蒸馏水和5%NaOH溶液洗涤，最后再用蒸馏水洗涤；⑤将用无水CaCl2干燥后的粗硝基苯进行蒸馏，得到纯净的硝基苯。

请填写下列空白：

(1)配制一定比例浓硫酸和浓硝酸混合酸时，操作的注意事项是__________________。

(2)步骤③中，为了使反应在50～60℃下进行，常用的方法是____________________。

(3)步骤④中洗涤、分离粗硝基苯应使用的仪器是___________________________。

(4)步骤④中粗产品用5%NaOH溶液洗涤的目的是____________________________。

(5)纯硝基苯是无色，密度比水______(填“大”或“小”)，具有________气味的油状液体。

【题目】完成句子

1. I lived in _____________________and I used to write about the Olympic Games a long time ago.

我生活在你们所说的＂古希腊＂，并且我曾写过很久以前的奥运会的情况。

2. ____________________ they’re called the Winter Olympics.

那就是它们被叫作＂冬季奥运会＂的原因。

3. No other countries could join in, ______________________ slaves or women!

其他国家不能参加，奴隶和妇女也不可以！

4. ________ in the Summer Olympics ________ you have the running races，together with swimming，sailing and all the team sports.

跑步、游泳、帆船和所有团队项目都是在夏季奥运会上进行。

5. There’s __________________ competition among countries to host the Olympics ________ to win Olympic medals.

国与国之间争取奥运会承办权的竞争就跟争夺奥运奖牌一样激烈。

6. I had to sit down and rest __________________________.

我每4分钟就得坐下休息。

7. So just how do you __________________________?

那么，你该如何从竞争者中脱颖而出呢？

8. He will __________________________across the Atlantic.

他将参加一次重大的横渡大西洋的比赛。

9. You can swap out one system and ______________________.

您可以交换一个系统并且用其他的系统替换它。

10. But I also ______________________ he would probably not find my answer very helpful.

不过我也承认，他很可能觉得我的答案并没有什么帮助。

【题目】B

Montgomery County Special Olympics held its eighth yearly show of unified (联合的)basketball at Blessed Sacrament School. The gym was filled with cheerleaders (啦啦队队员), parents and friends. The walls were covered with posters made by thirdandfourthgraders at the school. And all the elementary, middle and high school unified teams were playing hard and having fun. Every basket, no matter which team scores, is cheered and celebrated.

Special Olympics support more than 20 unified games. What are unified games? They are programs designed for players with special needs. In the games, they play with kids who are volunteers, called unified partners. The special athletes are unable to play normally like other healthy kids, and some of them are wheelchair (轮椅) users. In basketball, the unified partners rebound (抢得篮板球), pass and sometimes push a special athlete’s wheelchair. As Brian Ross, a seventhgrader at St. Albans School in Washington, says, ＂You just try to help and get everyone to take part.＂

Some special athletes have come a long way to be where they are. Caleb Head is a 15yearold special athlete. When he started, Caleb would only stand at the door and watch. Then Caleb began to practice his shooting but still would not play in the games. Now Caleb runs up and down looking for his shot.

The special athletes are not the only ones who benefit (受益) from unified sports; the unified partners do, too. Marla Grusin, whose son Tyler is a special athlete, says every kid should come to a Special Olympics game. If they do, they will learn ＂to share the ball＂ and that the game ＂is not all about me＂.

Not a bad lesson for any athlete.

【1】The first paragraph is about____________.

A. the meaning of unified games

B. Special Olympics’ development

C. the benefits of playing basketball

D. an exciting unified basketball game

【2】Special Olympics are especially held for students who____________.

A. are disabled

B. love cheerleading

C. know little about ball games

D. want to become a star player

【3】 According to the text, Brian Ross is most probably____________.

A. a cheerleader B. a special athlete

C. a unified partner D. a basketball teacher

【4】According to Grusin, taking part in Special Olympics games can help children____________.

A. learn basic basketball skills

B. become more selfless

C. improve their health

D. get better grades

【题目】完形填空（每小题1分，满分20分）

阅读下面短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。

Earthquakes are common; thousands of them happen each day. But most are too__1__to feel. During a __2__earthquake, there is often a great noise first. Then the earth__3__terribly; many houses__4__down. Railway tracks break and trains go__5__lines; a great many factories are__6__; thousands of deaths are caused, and many more lose homes. __7__the great damage and deaths caused by the earthquake__8__, other disasters such as fires often__9__. More buildings are destroyed and more__10__are caused.

It is well known of the__11__of a possible earthquake, and for centuries man has been making researches on earthquakes. More than 2, 000 years ago, __12__, a Chinese scientist named Zhang Heng__13__a machine which could find out from which__14__the seismic(地震的)waves had come, and this machine is still__15__by scientists today. Now we know much more about earthquakes and__16__they happen, but we still cannot__17__exactly when and where an earthquake will happen, and cannot__18__it from happening. So earthquakes are among the__19__disasters in the world.

No one can stop natural earthquakes.__20__, scientists can help stop earthquakes from destroying whole cities and causing too many deaths.

【1】 A. thin B. weak C. light D. slow

【2】 A. real B. weak C. big D. small

【3】 A. moves B. shakes C. jumps D. breaks

【4】 A. get B. put C. set D. fall

【5】 A. off B. on C. into D. behind

【6】 A. burst B. hurt C. destroyed D. buried

【7】 A. Except B. Besides C. Instead of D. Because of

【8】A. lonely B. later C. themselves D. itself

【9】 A. follow B. copy C. come D. enter

【10】 A. quakes B. deaths C. difficulties D. results

【11】A. information B. questions C. dangers D. shock

【12】A. as a result B. in fact C. for example D. as well

【13】A. invented B. discovered C. found D. operated

【14】 A. country B. direction C. way D. city

【15】A. improved B. repaired C. protected D. used

【16】 A. where B. when C. what D. why

【17】A. speak B. tell C. talk D. point

【18】 A. make B. prepare C. stop D. let

【19】A. worst B. best C. most D. fast

【20】A. However B. But C. And D. So

【题目】

用方框印所给短语的适当形式填空。

【1】 This is the medical team five doctors and four nurses.

【2】 The doctor Persuaded him to smoking.

【3】 I’d’ like to whoever is outgoing and ready to help others.

【4】He painting when he was still a boy.

【5】 I always feel nervous before I go .

【6】 I still remember being taken to Beijing for the first time when I was ______ five.

【7】 She would sooner resign than such dishonest business s deals.

【8】 Don’t that job; you’re in danger of overreaching yourself.

【题目】某生物兴趣小组对学校草坪的某种雌雄同花的植物进行了遗传学研究，发现该种植物的花色有红色和白色两种。他们查阅资料后发现，该对性状受一对遗传因子控制。为了对该对性状做进一步研究，该小组随机取红花和白花植株各60株均分为三组进行杂交实验，结果如表所示：

（1）根据 组结果，可以判断 色为显性．

（2）试解释A组结果没有出现3︰1性状分离比的原因 ．

（3）B组亲本的红花中，纯合子与杂合子的比例为 ．

（4）要判断B组杂交结果中某红花植株是否为纯合子，最简单的方法是 ．