T746防锈剂还可与T501抗氧化剂复配使用，称为1复合添加剂（）

阅读表达。阅读短文，根据要求完成下面各小题。

     In the past twenty years, riding bicycles has become more and more popular among people of all ages.

(3) Bicycles have long played an important part in the liyes of American young people. But today an even

greater number of adults cycle along roadsides and bicycle paths. These new riders are often trying to

become fit or lose weight. They have found that bicycling is a pleasant way to stay healthy.

     This is certainly good for health. But it has also brought some problems. With all these added people on

the road, bicycle safety has become a matter of real importance.

     Bicycle safety is mostly a matter of common sense. People should ride only on bicycle paths where they

will not be badly hurt. There are also a number of rules that riders should follow, especially when riding on

streets or highways. Bicyclists should never ride against the traffic,nor should they carry other people on

their bicycles. They are also supposed to ride in single line on busy streets and to walk bicycles across the

busy intersections (交叉路口). (4) By following these rules, bicycle riders will not only stay healthy but also

be safe.

     In one recent year, the National Safety Council reported that 34 thousand bicycle riders were hurt in

highway accidents. In that same year, another six hundred riders were killed. Since the introduction of crash

helmets (头盔) in 1980, the number of injuries (伤者) and deaths from bicycling accidents had gone down.

Today, more and more riders realize the dangers of bicycling. They are wearing helmets and paying closer

attention to cycling rules.

A. 根据短文内容回答下列问题。

1. How many rules should the riders follow? Give one example.

    _______________________________________________________________

2. According to the National Safety Council's report, what's the total number of injuries and deaths in one

    recent year?

    ________________________________________________________________

B. 将短文中划线部分译成汉语。

3._________________________________________________________________

4._________________________________________________________________

C. 请给短文拟一个适当的英文标题。

5._________________________________________________________________

因晶状体屈折力过强导致的近视称（）

A.视力低下

B.近视

C.屈光性近视

D.轴性近视

E.调节紧张性近视

（16分）阅读下列材料，回答问题。

材料一 我国是最早发明植桑养蚕织丝绸的国家。秦汉时代，黄河中下游地区农村，户户房前屋后种了桑麻，有的富户拥有上千亩的桑麻。那时候，桑麻种植开始向南发展到湖北、湖南和四川，向北发展到今天的内蒙古地区，汉朝的丝织品，以临淄和襄邑（在今河南）所产最为有名。那里的丝织品，种类多，产量大，有名贵的锦、绢、纱等……丝织业经过唐末五代及北宋一个长时期的发展，大大改变了唐中叶以前的面貌。北宋时，丝织业的产地逐渐形成江浙和四川两个中心……整个沿海地带都比较发达。

——《简明宋史》

材料二 中国古代人口地理分布的变化（人口密度：人/平方千米）

——《简明宋史》

材料三 渭水上游的陇山山脉，秦汉时代一片葱笼。秦岭及其北麓在汉代被人称为“陆海”。然而，关中作为许多朝代帝王的京畿重地，建筑宫室，营建坟墓，所耗树木无法计算，其中主要是就近砍伐。唐代以后，渭水的流量已经明显减少，航运也就不见记载。秦岭北麓的森林至今早就无影无踪了。

——《沧海神州·中国历史地理谈丛》

材料四 且说嘉靖年间，这盛泽镇（江苏苏州郊区）上有一人，姓施名复，浑家喻氏，夫妻两口，别无男女。家中开张绸机，每年养几筐蚕儿，妻络夫织，甚好过活……那施复一来蚕种拣得好，二来有些时运，凡养的蚕，并无一个绵茧，缫下丝来，细员匀紧，洁净光莹，再没一根粗节不匀的，每筐蚕又比别家分外多缫出许多丝来。照常织下的绸拿上市去，人看时光彩润泽，都增价竞买，比往常每匹平添许多银子。因有这些顺溜，几年间，就增上三四张绸机……（后来）夫妻依旧省吃俭用，昼夜营运。不上十年，就长有数千金家事。又买了左近一所大房居住，开起三四十张绸机，又讨几房家人小厮，把个家业收拾得十分完美。

——冯梦龙《醒世恒言》

（1）根据材料一，概括说明我国古代丝绸生产格局的变化。（6分）

（2）根据材料二、三并结合所学知识分析我国古代丝绸生产格局变化的原因。（6分）

（3）从施复夫妇经营的丝织业规模变化来看，反映什么本质问题？结合史实分析这一本质问题出现的原因？（4分）

计算机的网卡是计算机接入网络的设备，按照网络技术的不同，网卡可分为ATM网卡、令牌环网卡、以太网网卡。

对于昏迷患者控制抽搐，目前首选药物为（）。