为了耕种自己的土地而必须经过他人土地的，可以在他人土地上成立通行权，该通行权在物权的

阅读理解。

     Young people and old people do not always agree with each other. They sometimes have different

ideas about living, working and playing. But in one program in New York State, adults and teenagers live

together in a friendly way.

     Each summer 200 teenagers and 50 adults are invited to join the program. They live together for

eight weeks as members of a special work group. Everyone works for seven hours a day. They do so

not only to keep busy, but also to find meaning and happiness in work.

     Some teenagers work in the woods or on the farm near the village. Some of them learn to make things

like tables, chairs and something like that and to build houses. It is the adults who teach them to do those.

     There are a few free hours each day and weekends are free, too. During the free hours some of the

teenagers learn to take photos or paint pictures, others sit around and talk, sing or dance. Each teenager

has his own way to spend his free time.

     When people live together,  rules are necessary. In this program the teenagers and the adults make the

rules together.If someone breaks a rule, the problem goes before the whole group. They talk about it and

ask,"What should we do about it?"

     One of the teenagers talks about his experience, "You stop thinking only about yourself, You learn to

think about the group. "

1. In the program in New York State, young and old people _                .

A. teach one another new ways of building houses

B. are friendly to one another

C. do not work together

D. spend a long time together, working as farmers

2. All the members spend some time together every day mainly to _               .

A. learn new skills of farming

B. lead a busy life

C. get used to the life on the farms

D. find value and pleasure in work

3. The last paragraph shows that the teenager thinks his experience in the program is _________.

A. tiring          

B.unpleasant

C. helpful                    

D. boring

4. The best title for the passage is _________.

A. The Rules of Living Together

B. Life in New York State

C. Teenagers in the Special Group

D. Free Hours in the Special Work Group

小亮对铁丝在氧气里燃烧时出现的红热球状物产生了兴趣，随后他进行了以下探究活动。

【问题1】铁燃烧后剩下来的球状物质中还有没有铁呢？

【实验探究】将剩下来的球状物质碾碎，加入       溶液，观察到的现象是                  ，说明铁燃烧时溅落下来的黑色物质中还含有铁。

【问题2】铁燃烧的产物为什么不是Fe₂O₃呢？

【查阅资料】

（1）自然界中铁的氧化物主要是Fe₃O₄和Fe₂O₃两种（FeO极易被氧化为Fe₂O₃）；

（2）Fe₃O₄和Fe₂O₃的分解温度、铁的熔点见表：

（3）Fe₂O₃高温时分解成Fe₃O₄

【理论探讨】实验测定铁在氧气里燃烧的产物是Fe₃O₄，结合表中数据，可推知铁在氧气里燃烧时产生的高温应在           ℃之间，在此温度范围内       已分解。

【拓展延伸】

（1）实验中为了防止集气瓶炸裂，必须               ；

（2）有些食品包装盒的透明盖内放有黑色的FeO粉末，若粉末的颜色      ，就说明包装盒破损进气，这样售货员就能及时发现并处理。

原发性甲状腺功能减退症最早出现异常的是（）

A.血TSH

B.血总T₃

C.血游离T₃

D.血总T₄

E.血游离T₄下一题

不引起嗜酸性粒细胞增多的疾病是（）。

A.支气管哮喘

B.猩红热

C.伤寒

D.慢性粒细胞白血病

E.肠寄生虫

在元旦晚会上小明表演了一个魔术：他拿出一把装满“水”的“宝壶”，分别向编号为A、B、C、D、E五只烧杯（装有少量不同试剂）中倒“水”，结果A杯无色透明，B杯看似红墨水，C杯看似牛奶，D杯看似红褐色涂料，E杯看似蓝色果冻．则宝壶中的“水”可能是（　　）

A．H₂O₂

B．HCl溶液

C．AgNO₃溶液

D．NaOH溶液