前进中学初二(8)班收集到某个家庭中的一些遗传信息如下: ①一对夫妇生有一个儿子

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问题:

前进中学初二(8)班收集到某个家庭中的一些遗传信息如下:

①一对夫妇生有一个儿子两个女儿,共三个孩子.  ②儿子患有白化病.  ③两个女儿没有患白化病.④夫妇双方也没有患白化病.⑤已经知道白化病是由一对基因控制的.请根据这些信息回答下列问题:(假定控制白化病的基因为a)

(1)家庭成员的正常肤色与白化这同一性状的不同表现类型,在遗传学上称为______.

(2)夫妇俩正常肤色,而儿子患有白化病,这在遗传学上称为______.

(3)这对夫妇没患白化病女儿的基因组成是______.

(4)假定这对夫妇再生一个孩子,那么这个孩子患白化病的可能性为______.

考点:基因
题型:解答题

In most parts of the world, many students help their school make less pollution. They join in “environment clubs”. In an environment club, people work together to make our environment clean.

Here are things students often do:

Turn off the water! Do you know that some toilets can waste twenty to

forty tons of water an hour? In a year, that would fill a small water! In environment clubs, students mend those broken toilets.

No-car day. On a no-car day, nobody comes to school in a car-not the students and not the teachers. Cars give pollution to our air, so remember: walk, jump, bike or run.

Use your legs! It’s lots of fun!

No-garbage(垃圾) lunches. How much do you throw away after lunch?

Environment clubs ask students to bring their lunches in bags that can be used

again. Every week they will choose the classes that make the least garbage

and report them to the whole school.

We love our environment! Let’s work together to make it clean!

小题1: After mending the broken toilets, they save      .

A.a small river

B.a lot of water

C.a toilet

D.a year小题2:On a no-car day,      will take a car to school.

A.only students

B.only teachers

C.both students and teachers

D.neither students nor teachers小题3:Environment clubs ask students        .

A.to run to school every day

B.to play sports every day

C.not to throw away lunch bags

D.not to forget to take cars小题4:From the passage we know that students usually have lunch       .

A.at school

B.in clubs

C.at home

D.in shops小题5:The write wrote the passage to tell students to       .

A.join in clubs

B.help teachers

C.make less pollution

D.clean schools

题型:解答题

I have a friend who lives by a three-word philosophy (人生哲学): Seize the moment. Just possibly, she may be the wisest woman on this planet. Too many people put off something that brings them joy just because they haven’t thought about it, don’t have it on their schedule, don’t know it is coming or are too strict to depart from their routine.

I can’t count the times I called my sister and said, “How about going to lunch in half an hour?” She would gasp and stammer (结结巴巴地说), “I can’t. I have clothes on the line. My hair is dirty. I wish I had known it yesterday, I had a late breakfast, and it looks like rain.” And my personal favorite response: “It’s just Monday.” She died a few years ago. We never did have lunch together. From then on, I’ve tried to be a little more flexible.

Life has a way of going faster as we get older. The days get shorter, and the list of promises made to ourselves gets longer. One morning, we awaken, and all have to show for our lives is repetition of “I’m going to” , “I plan on” and “Someday, when things are settled down a bit.”

When anyone calls my “seize the moment” friend, she is open to adventure and available for trips. She keeps an open mind on new ideas. Her enthusiasm for life is contagious. You talk with her for five minutes, and you’re ready to trade your bad feet for a pair of Rollerblades and skip an elevator for a bungee cord.

My lips have not touched ice cream in 10 years . I love ice cream. The other day, I stopped the car and bought a triple-decker. If my car had hit an iceberg on the way home, I would have died happily.

Now ... go on and have a nice day. Do something you WANT to … not something on your SHOULD DO list.

1.The example of the writer’s sister serves as ________.

A. an argument      B. an introduction      C. a support         D. a conclusion

2.The writer thinks that the excuse “It’s just Monday.” is acceptable, because ________.

A. it is still likely that they can have lunch together some time later

B. it sounds most reasonable of all the excuses

C. it shows respect for the writer’s suggestion

D. it indicates the time when they can have lunch together

3.The underlined word “contagious” in the fourth paragraph means “________” .

A. appropriate               B. influential                  C. practical                   D. evident

4.What is the purpose of the writer by writing this passage?

A. To suggest how time flies.

B. To persuade busy people to relax.

C. To advise people to keep their promise.

D. To persuade readers to be flexible on their schedule for practical joy.

题型:解答题

材料:2010年的广西经济数据甚是让人欢喜:经济增速创近3年来新高,连续9年实现两位数增长,主要指标增速位居全国前列,其中规模以上工业增加值、城镇固定资产投资增速均排在全国第1位;社会消费品零售总额增速排全国第7位、西部第2位。

(1) 请你辨析:有的同学认为,只要实行民族区域自治制度就能实现民族自治地方的繁荣和发展。

___________________________________________________________________________________________

(2)为了各民族的稳定、更繁荣发展和祖国的统一,你会怎样做呢?

___________________________________________________________________________________________

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砌筑砂浆由()配制而成。

A.胶结料

B.粗集料

C.细集料

D.水

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工程项目管理的首要任务是确保安全,即建设安全和使用安全。

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