2022-2023学年度高考分科综合测试卷语文答案全国卷一衡中同卷

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25.(每空2分，共14分)【选出缺陷型】B作为空白对照，判断培养基本身是否被杂菌污染鉴别【鉴定缺陷型】稀释涂布平板法氨基酸和维生素【鉴定缺陷亚型】维生素B1区域3与区域5的交界处【解析】【选出缺陷型】为营养缺陷型菌株，获取营养能力差，菌落生长发育小。空白培养基的日的是判断培养基是否被杂菌污染。野生型和缺陷型均能在限量培养基上生长，所以不是选择培养基，通过生长发育情况可判别出菌落的差异，故为鉴别培养基。【鉴定缺陷型】要得到菌落需用稀释涂布平板法进行接种；在BC交界处长出了菌落，因此需要同时提供B和C才能生长，为氨基酸和维生素缺陷型。【鉴定缺陷亚型】区域1和区域2产生菌落，说明区域1和区域2共同含有该物质，其它区域不含有该物质，通过比较，该物质为维生素B1。区域3能提供叶酸，区域5能提供生物素，因此3和5的交界处能培养出叶酸和生物素的双营养缺陷型大肠杆菌。

There are many traditions around the holidays. “Holiday traditions” are things that people do every year during a holiday such as Christmas or Thanksgiving. At Christmas, for example, many people put up a Christmas tree or Christmas lights. These are Christmas traditions that have been going on for many years. But there is a “new” Christmas tradition that has become very popular: the TV firelog, a TV channel that shows nothing but a large log fire, blazing in a fireplace.

People put it on their TV and it makes them feel like they are watching and listening to a crackling fire. It makes them feel calm and comfortable. The origin(起源) dates back to 1986 in Canada. At that time, not very many people knew about it or watched the channel. Today, more than three million people watch the firelog channel during the winter holiday season. That year, the firelog channel was created(创造) to give the workers in the company that is now called Shaw Cable, a break at Christmas. By running the firelog during the holidays, everyone could go home for a few days and enjoy a bit of time off.

At that time, it was only broadcast to people in Edmonton but today it reaches people across Canada and beyond. This year, the Shaw firelog was updated. It is pretty high tech. Although it’s still really just a fire log that has been filmed, it has its own Twitter account (@ShawFireLog), its own Facebook page and it even has a computer App so you can see the burning log on a smartphone or a tablet. The Shaw firelog will burn until Jan. 5 on Shaw Cable, channel 222.

1.What does this passage mainly talk about?

A. The origin and popularity of the TV firelog.

B. Famous holiday traditions.

C. What makes the TV firelog so popular.

D. The TV firelog today.

2.What does the underlined words “the TV firelog” mean in Paragraph 1?

A. It is an old Christmas tradition beginning a long time ago.

B. It is a TV channel that shows nothing but a fireplace.

C. It is a TV channel with all kinds of Christmas traditional programs.

D. It is a TV channel where people can watch a large log fire.

3.For what purpose was the TV firelog created?

A. To attract more people to watch their programs.

B. To make people feel calm and comfortable by watching a crackling fire.

C. To give the people working at the company a few days off at Christmas.

D. To create more new traditions for people to celebrate Christmas.

4.What can we learn about the TV firelog from the passage?

A. More than three million people watched the channel in 1986.

B. It was broadcast to people in Edmonton and across Canada when it first started.

C. It has its own Twitter account but no Facebook page now.

D. The burning of the firelog will last until Jan. 5 on Shaw Cable.

试题答案

1.A

2.D

3.C

4.D

【解析】

试题分析：文章主要写了电视燃料的起源，以及它到现在的普遍程度。

1.

2.

3.

4.

考点：考查生活故事类短文阅读

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