Have you ever posted letters to your fri

题型:阅读理解

问题:

Have you ever posted letters to your friends or parents? If so, you must have put stamps on the letters before you sent them. But, how did people receive letters before stamps were invented, and who came up with the idea of using stamps?

In the past, stamps and envelopes were not used. When people wanted to send a letter, they would close the paper with a seal(封印). The person who got the letter had to pay for it. Because costs at that time were very high, most people refused to accept letters. In fact, the sender would often place secret marks on the outside of the letter. The person who was sent the letter would read the secret message. Then, they would refuse to accept the letter and did not have to pay for it.

In Britain, Sir Rowland Hill introduced the “Post Office Reforms” in 1837. He decided that letters could go to any place in the country for a penny even if the letter had to go far away. The cost was to be paid by the sender of the letter. Payment was recorded by placing a small piece of coloured paper on the letter, the stamp! On May 6,1840, the first stamp called the “Penny Black” was born. Because the stamp was printed in black, the stamp became known as the “Penny Black”. This is now the world’s most famous stamp. This new system spread fast.

小题1:The best title for this passage should be______

A.The First Stamp.

B.How Stamp Was First Made

C.Why the First Stamp Was Made

D.When Was Stamp First Made小题2:Before stamps were used,______ would pay for the letter.

A.the sender

B.the receiver

C.the government

D.no one小题3:The first stamp was made______.

A.more than 160 years ago

B.more than two centuries ago

C.less than 100 years ago

D.about 100 years ago小题4:Which of the following is true about the first stamp of China?

A.It was made much earlier than the first stamp of the US

B.The stamp had a snake on it

C.The stamp couldn’t be found now

D.The stamp had a picture of a dragon on it

考点:人物传记类阅读广告布告类阅读日常生活类阅读人生感悟类阅读
题型:阅读理解

[听力原文] ??有一个博物馆被盗了,丢失了十件珍贵的文物,幸好一枚珍贵的钻石戒指没有被盗。警方经过多次努力也找不到线索,这时,一直很冷静的博物馆馆长提议让电视台采访他。不久,电视上播放了记者采访博物馆馆长的镜头。记者问:“这次共丢失了多少件文物?”馆长答:“十一件。”记者又问:“这些文物都很珍贵吗?”馆长答:“是的,都很珍贵,特别是一枚钻戒,价值连城。”时隔不久,警方就查到了线索,顺利地破了案。线索来源很简单,几个盗贼在互相殴打时被警方抓获,而他们殴斗的原因竟然是互相猜疑究竟是谁私藏了第十一件文物——那枚珍贵的钻戒。 被盗窃的博物馆丢了多少件文物?()

A.9件 

B.10件 

C.11件 

D.12件

题型:阅读理解

关于扣件式钢管作高大模板支架立杆时的说法,错误的是()。

A.立杆上每步设置双向水平杆且与立杆扣接

B.相邻两立柱接头不得在同步内

C.立柱接长最多只允许有一个搭接接头

D.上段的钢管与下段钢管立柱严禁错开固定在水平拉杆上

题型:阅读理解

下列关于桩侧摩阻力的说法中,()选项是正确的。

A.黏性土中的打入桩,其桩侧摩阻力沿深度分布的形状,通常近似于抛物线,在桩顶处摩阻力等于零,桩身中段处的摩阻力比桩的下段大

B.钻孔灌注桩由于施工方法与打入桩不同,其摩阻力的分布也不相同,通常沿桩长的分布比较均匀

C.在砂性土中打桩时,桩侧摩阻力的变化与砂土的初始密度有关,如密实砂性土有剪胀性会使摩阻力出现峰值后有所下降

D.在饱和黏性土中打桩,成桩过程使桩侧土受到挤压、扰动、重塑,产生超孔隙水压力,土的抗剪强度降低,桩侧摩阻力变小

题型:阅读理解

简述瓜类白粉病的症状。

题型:阅读理解

印迹酶

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