Most people believe that pencils are made from lead, but this isn’t quite true. They’re actually made of a mineral called graphite (石墨). 1During the late Middle Ages, in a village called Borrowdale, in England, a group of locals saw a few uprooted trees.2On e of them had the ...
【题目】Many people begin to use pencils from an early age . There are many kinds of pencils some have erasers on top ; some are colorful. You may have used many kinds of them for many years , but do you know the historyof pencils?Many years ago , people in Egypt used lead铅)to ...
A.今天的铅笔不是由铅和石墨制成的;根据Now pencils are made from graphite instead of lead.可知A选项描述错误。B.第一支木铅笔是在美国制造的;根据In 1812, William Munroe made the first American wood pencils.可知B选项描述是正确的。C. 德国人最早使用混合材料制作铅笔;根据Later, in the 1600s, ...
根据“That’s why she has three pens, three rulers and three pencils”可知,她最喜欢的数字是三,故选C。 29.【答案】A 【解析】句意:她的电话号码是多少?what’s什么是;who’s谁是;how’s怎么样;where’s在哪里。根据“what’s ...
Moleskine pencils are made of cedar wood with matte finishing and a 3 mm lead. The fluorescent pencils are made of lime wood, painted matte black with an orange or yellow base and fluorescent lead. The two sets include a plastic cap to clip the pencil to a notebook cover on a rubberized...
the pencils are now readyWord Bankto be sold. However, most of them sill need the last step.clay/kle:/n.黏土;陶土5.graphite /'graefaut/n.石墨lead /lid/n.芯After all of this, the pencils can be put in the box and sold now.根据材料内容,从下面五个选项中选出能填入文中空缺处的最佳...
Pencils are generally graded using the 'Graphite Scale(石墨含量)' which(1) measures(measure) how soft or hard the lead is. Graphite is a naturally soft substance and clay is mixed with it to make it harder,(2) meaning(mean) a lead with a high graphite content is known as a soft lead...
There are many kinds of pencils: some have erasers on top; some are colorful. You may have used many kinds of them for many years, but do you know the history of pencils? Many years ago, people in Egypt used lead (铅) to write. Now pencils are made from graphite (石墨) instead ...
Did you know that 14 billion pencils are made around the world each year? Most people don't know about the journey each pencil takes before it ends up in your hand. Think about it: The wood might come from trees in Oregon. The "lead" (which is actually graphite) could be from Sri ...
Lead -inWhat’s our city famous for Food Artwork Other products Pre-writingA:What’s your city famous for B:Our city is famous for making lanterns.A:Really! What are they made of B:They’re made of bamboo, silk or paper.A:What can they do B:They were first used for lighting in ...