发布时间 : 星期二 文章配套K122019高考英语一轮复习练习题 Unit 5 Canada-The True Nor更新完毕开始阅读d09cd9780640be1e650e52ea551810a6f424c849
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Unit 5 Canada-“The True North”
李仕才
【阅读理解插花】
Science textbooks around the world have become suddenly out of date. Four new chemical elements(元素)have been added to the periodic table. A big decision now lies ahead—elements 113, 115, 117 and 118 need to be given their official names and symbols.
New elements can be named after a mythical(神话的) concept, a mineral, a place or country, a property(特性) or a scientist. The names have to be unique and maintain “historical and chemical consistency”. This means a lot of “-iums”.
“They’re Latinising the name, ” explains chemist Andrea Sella. “The most recent tradition is to name them after places or people. ” The places chosen tend to be where the element was discovered or first produced.
No one has yet named an element after themselves but many elements are named in honour of important scientists. Albert Einstein was given einsteinium. This can also be a way of righting the wrongs of the past. “Lise Meitner was really the chemist who spotted nuclear fission(核裂变)but she was never really recognised for it because she was Jewish and a woman, ” says Sella. “Giving an element a name that reminds us of her is greatly important. ”
The naming process isn’t quick. The scientists who discovered them will start things off by suggesting a name. But it will be down to the International Union of Pure and Applied Chemistry (IUPAC) to approve it. A special division of the US-based group has to accept the suggestion. Then there is a public review period of five months before the IUPAC gets the final approval. Once it’s ready, the name is announced in the scientific journal Pure and Applied Chemistry.
Naming an element is not just about functionality. Names are always important. 【文章大意】本文为一篇科普题材的说明文, 文章主要介绍了每当一个新元素被发现之时我们该如何对其进行命名, 该用什么对其进行命名。 1. What is the function of Paragraph 1? A. To introduce the topic. K12小学初中高中
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B. To present a finding. C. To point out a problem. D. To call for a decision.
【解析】选A。段落大意题。通过综合分析该题应当选择A项“引出话题”。 2. Why was Lise Meitner mentioned in the naming process in Paragraph 4? A. To praise her.
B. To build her reputation.
C. To correct the wrongs of the past. D. To end racial discrimination.
【解析】选C。细节理解题。根据第四段“This can also be a way of righting the wrongs of the past. ”可知“这也可能是一种纠正过去错误的方式”, 因而该题选择C项。 3. Who has the final say in the naming process of an element? A. The scientist who discovered it. B. The special division of US-based group.
C. The scientific journal Pure and Applied Chemistry. D. The International Union of Pure and Applied Chemistry.
【解析】选D。细节理解题。根据文章的第五段“But it will be down to the International Union of Pure and Applied Chemistry (IUPAC) to approve it. ”可知应选D。 4. What is the passage mainly about? A. How elements get their names.
B. Why science textbooks are out of date. C. How new elements are discovered. D. How functional naming an element is.
【解析】选A。主旨大意题。根据全文内容可知文章主要讲述了新元素是如何命名的。
Ⅰ 教材与语法填空
根据教材课文内容，在空白处填入1个适当的单词或括号内单词的正确形式。
My cousin and I travelled across Canada 1. train. We saw many beautiful 2. (scene) and wild animals from the train on the way through the Rocky Mountains. The city of Thunder Bay is a port in the centre of Canada. In Toronto, we went up the CN Tower and saw the mist from Niagara Falls.3. we arrived in Montreal，we 4. (see) many signs and ads in French.Then we went to Old Montreal, K12小学初中高中
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5. (sit) in a typical cafe beside the St Lawrence River.Montreal is a city with wonderful restaurants and clubs. We spent the afternoon 6. (do) some shopping in shops and visiting the artists in their workplaces. People there speak English 7. the city has 8. (France) culture and traditions.
That night as the train 9. (speed) along the St Lawrence River toward the Gulf of St Lawrence and down to the 10. (distance) east coast, we dreamed of French restaurants and red maple leaves.
答案：1.by 2.scenery 3.When 4.saw 5.sitting 6．doing 7.but 8.French 9.was speeding 10．distant
Ⅱ 教材与话题写作
(Ⅰ)用本单元所学知识完成下列句子。
1．参观加拿大是我们最大的梦想之一。(Canada)
答案：One of our biggest dreams is to visit Canada. 2．直到去年我们才实现梦想。(not until的强调句型)
答案：It was not until last year that we managed to make it. 3．我们决定坐飞机去，不开车。(rather than)
答案：We decided to take a plane rather than drive.
4．傍晚，我们登上飞机。黎明时，我们已经在加拿大的上空。(aboard; dawn)
答案：In the evening we went aboard. At dawn, we were already over Canada. 5．我们看到了远处的许多湖泊、山脉。(catch sight of; in the distance)
答案：We caught sight of many lakes and mountains in the distance. 6．美丽的景色给我们留下了深刻的印象。(impress)
答案：We were greatly impressed by the beauty of the scenery. (Ⅱ)将以上句子连成短文，要求衔接连贯、过渡自然。
【完形填空插花】
阅读下列短文，从短文后各题所给的A、B、C和D四个选项中，选出可能填入空白处的最佳选项。
Though Dad looked tired and weak，his smile was as sure as ever.It was another __1__ of pneumonia(肺炎)．My husband and I stayed with him for the__2__ but had to return to our jobs by Monday morning.Local relatives would see that Dad was home K12小学初中高中
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from the hospital，and they would visit him __3__，prepare his meals and take him to his doctor appointments.But I __4__ to be able to let him know that we __5__ ，too，even when we weren't with him.
Then I remembered a family __6__ I started when our children were small.When leaving their grandparents' home after a visit，each child would __7__ a love note in the house for them to __8__ after we were gone.They hid notes somewhere.For days after our __9__ ，their grandparents would __10__ as they discovered these reminders of our love.
So as I __11__ Dad's rooms，I began writing notes.Some were __12__.“Dad，I put the milk in the fridge so it wouldn't __13__.”Some expressed my love.“Dad，I hope you sleep well in your new bed.”Most notes were __14__ where he would lived for several weeks until he regained __15__ ，but one note I hid upstairs under his pillow.“Dad，if you have found this note，you must be feeling better.We are so __16__ ！”
While others cared for Dad's daily __17__ ，we，of course，would stay in touch by phone.But our notes were a __18__ reminder of our love and concern for him during this recovery period.Just like his medicines improved him physically，these“__19__ vitamins”(维生素)would improve his spiritual health.Several weeks later，Dad phoned and said，“I'll tell you that I just found your __20__ under my upstairs pillow！”I smiled at last.
1．A.experience B．attack C．disaster D．pain 2．A.weekday B．night C．weekend D．holiday 3．A.regularly B．rarely C．suddenly D．occasionally 4．A.happened B．dreamed C．agreed D．longed 5．A.feared B．cared C．calmed D．regretted 6．A.hobby B．game C．tradition D．business 7．A.hide B．write C．copy D．leave
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