阅读理解 It is surprising that eating three

题型:阅读理解

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阅读理解

     It is surprising that eating three meals a day-breakfast, lunch and dinner-has been a custom(习俗) only since 1890.  Before this time, people only had two meals a day-breakfast and dinner.  

     In the 16th century, breakfast was only to break one's fast(随便吃一点). But 200 years later it had

become a large meal, not just for family, but for numbers of guests as well. It was a social(社会的)event.  It began at 10 a.m.  and lasted until 1 p.m. Then breakfast began to be less popular.  It became,

instead, a lighter meal and was taken at a much earlier hour.  By 1850 it had been pushed back to 8 a.m.  and became a family meal.

     Dinner, however, went to the other way. In the 16th century it was eaten at 11 a. m. Years later, it

had moved to the early afternoon, then to 5 p.m. By 1850 dinner time had reached 7 p.m. Lunch is a

recent idea. It first appeared as a snack to fill the gap(间隙) between breakfast and dinner.  

1. People did not have lunch                      .  

A. until 1890        

B. after 1890      

C. since 1890      

D. by 1890

2. " Dinner, however, went to the other way " means "                  ".

A. Dinner didn't go there with breakfast  

B. Dinner took the same way with breakfast

C. Dinner is different from breakfast    

D. Dinner is the same with breakfast

3. Breakfast became a family meal since the                   century.  

A. 17th    

B. 18th    

C. 16th    

D. 19th

4. The passage is mostly concerned with(涉及)                  .

A. what people eat for breakfast      

B. what people eat for dinner

C. the history of supper              

D. the history of the three meals

考点:历史文化类阅读
题型:阅读理解

少尿可见于下列哪些疾病()

A.慢性肾衰竭

B.慢性胆囊炎

C.尿毒症

D.休克

E.糖尿病

题型:阅读理解

乳磨牙萌出最佳窝沟封闭时间是()

A.1~2岁

B.2~3岁

C.3~4岁

D.6~7岁

E.整个乳磨牙期均可

题型:阅读理解

如图,在光滑水平面上有一质量为m1的足够长的木板,其上叠放一质量为m2的木块。假定木块和木板之间的最大静摩擦力和滑动摩擦力相等。现给木块施加一随时间t增大的水平力F=kt(k是常数),木板和木块加速度的大小分别为a1和a2,下列反映a1和a2变化的图线中正确的是

[ ]

A.

B.

C.

D.

题型:阅读理解

发电机运行中,如发现杂音或不正常现象应立即()。

A、停车

B、断电

C、排除

D、上报

题型:阅读理解

等温效率表示实际压缩过程接近等温过程的程度,越接近等温过程,等温效率越低。

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