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1、衡水金卷先享题分科卷2023年普通高等学校招生全国统一考试模拟试题政治

2、2023年普通高等学校招生全国统一考试模拟试题理综二衡水金卷先享卷分科综合卷

3、2023衡中经卷先享题分科综合卷 新教材

12.(1)A(2分)(2)11.4(2分)16.7(2分)d2(xB-xA)4L(3分)

The sunflower plant bears bright yellow flowers that always face the sun, hence the name. However, the plant is grown not only for its beautiful flowers, but also for its oil that has a host of health benefits. Sunflower oil prevents diseases, lowers cholesterol levels, keeps the heart healthy, and even prevents certain forms of cancer. Sunflower oil is a kind of “magic oil” when it comes to skin care, as it makes your skin soft and smooth, and prevents signs of aging. So, let us know more about its effects on your skin.

1. It Acts as an Effective Emollient(润肤霜).

Sunflower oil is an effective emollient, which means that it helps the skin retain moisture. Thus, people with dry skin can benefit immensely from the regular use of the oil. Also, it is mild, and provides relief from irritation and inflammation of the skin.

2. It Offers Sun Protection.

Sunflower oil is a rich source of vitamin E. The high vitamin content prevents the sensitive cells of the skin from being damaged by the ultraviolet (UV) rays of the sun. Also, the beta-carotene (β-胡萝卜素) present in sunflower oil helps neutralize（中和） free radicals that are responsible for causing damage to the skin, including sunburn and skin cancers.

3. It Prevents Earlier Aging.

Vitamin E present in sunflower oil not only protects the skin from sun damage, but also from earlier aging. What’s more, regular use of sunflower oil can reduce wrinkles and make one look younger. Also, sunflower oil is rich in antioxidants(抗氧化物质) that keep the skin fresh.

4. It Prevents Skin Infections（感染）.

Sunflower oil is a rich source of essential fatty acids that protect the skin from bacterial infections. Hence, it gives you a healthy skin.

5. Additional Effects.

There are other ways in which sunflower oil can prove to be a boon for your skin. These are given as follows:

It helps reduce dark spots; it helps lighten dark circles; it helps soften rough and dry skin; it can be used to remove make-up; it helps relax tired eyes.

1.Sunflower oil can be good for the following EXCEPT ________.

A. reducing cholesterol levels

B. preventing heart diseases

C. making skin smooth and impressive

D. curing some kinds of cancers

2.What are the functions of vitamin E?

A. To make ultraviolet rays and beta-carotene.

B. To stop sunburn and treat skin cancers.

C. To protect skin and slow the pace of aging.

D. To produce wrinkles and make skin bright.

3.Which of the following is NOT true?

A. Sunflower oil can weaken dark spots.

B. Sunflower oil may lead to skin infections.

C. Sunflower oil can make you attractive.

D. Sunflower oil may keep eyes in comfort.

4.Which is the best title for the passage?

A. Benefits of Sunflower Oil for Skin

B. Sunflowers Make Life Beautiful

C. Sunflower Oil Ends Diseases Greatly

D. Benefits of Growing Sunflowers

试题答案

1.D

2.C

3.B

4.A

【解析】

试题分析：文章讲的是太阳花植物油的好处。

1.D 细节理解题。考察的是太阳花油的好处，每段黑体的字就是用途，可知太阳花油没有治愈癌症的作用，属于无中生有，故选D。

2.C 推理判断题。问的是维他命E的作用，找到关键词vitamin E，找到含该关键词的话，Sunflower oil is a rich source of vitamin E. The high vitamin content prevents the sensitive cells of the skin from being damaged by the ultraviolet (UV) rays of the sun. 可知作用是阻止阳光对细胞的损害，因此选C。

3. 推理判断题。问的是不对的选项，太阳花油有阻止皮肤感染的作用，It Prevents Skin Infections

（感染），B中说的是会导致感染，所以错误，故选B。

4. 主旨理解题。文章明显讲的是太阳花油的好处，故选A。

考点：考查科普说明文的阅读。

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