高考英语阅读练习科普环保类

高考英语阅读练习科普环保类

高考英语阅读训练——科普环保类

（一）

It is 7 am and the alarm is going off. You know you have to be out of bed to catch the bus. But the urge to bury yourself in the bed is ever so strong. Sounds familiar? Why is it that teens find it difficult to get themselves out of bed in time every morning or stay sharp and focused during the first couple of hours of school?

During adolescence, the body goes through many changes and these include a shift in sleep patterns. Researchers from MIT have been tracking the bod y’s need for sleep in teenagers. They found that though adolescents need as much as 9.5 hours of sleep a day, they get to bed later and later with each passing year. In fact, the sleep cycle shifts later by as much as 12 to 18 minutes each year between the ages of 10 and 20! So by the time a 10yearold who sleeps at 8 pm grows to be 17 or 18, his body naturally wants to stay up till 10：30 pm or 11 pm.

According to researchers, this is because of a hormone called melatonin (褪黑激素) that is secreted (分泌) by the

2. What does the underlined word “this” in Paragraph 3 refer to?

A. The students want to stay up.

B. The shifts of the sleep cycle.

C. The pineal gland secretes melatonin.

D. The adolescents sleep late.

3. The teens go to sleep later than before because

________.

A. melatonin is secreted much later

B. melatonin regulates the sleep time

C. they sleep a lot in the daytime

D. they need to finish their homework

4. Accor ding to AAP’s recommendation, middle an d high schools should ________.

A. let teens sleep in the day

B. let the students be active

C. delay the start time

D. start later at 8 am

（二）

It has been around for centuries, but up until very recently, tradit ional Chinese medicine (TCM) wasn’t ful ly accepted abroad. Proof of this can be found in The Treatment (《刮痧》), a 2019 film that tells the story of a Chinese man in the US who’s accused of abuse after he uses guasha, a form of TCM treatment, to cure his gra ndson’s disease.

During the last 10 years or so, however, TCM has been getting increasingly popular all over the world. A report released by the State Council Information Office on Dec. 6 says this style of health care, which includes different forms like herbal medicine and exercise, has spread to 183 countries and regions.

“We have set up 10 TCM centers outside China, and all of them are popular among locals,” Wang Guoqiang, head of the State Administration of Traditional Chinese Medicine, said at a news conference on Dec 6. “Governments of 86 countries and regions have signed agreements with the Chinese government on TCM corporation.”

One of the reasons behind the growing popularity of TCM is the increase of scientific research into it. And after Tu Youyou-the Chinese scientist who discovered the