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  • 更新 2022-09-03
  • 科目 英语
  • 题型 阅读理解
  • 难度 中等
  • 浏览 663

Hair has always been an important sign of beauty. This is especially true for women. Next to the face, hair is one of the main qualities people look for when they consider a woman’s beauty. Whether long or short, curly or straight, hair often gets a lot of attention.
Each hair on a person’s head grows from a single tube-like hole in the skin called a follicle. People are born with all of the hair follicles they are ever going to have. The average person has about one hundred thousand hair follicles. They begin to form around the third month of pregnancy.
Each hair grows independently of other hairs. There are three periods of hair growth. Not all hairs experience the same period of growth at the same time. The period of active growth is called Anagen. During this period, hair grows at a rate of about three tenths millimeters a day, or one centimeter a month. About 85 percent of hair follicles are going through this process at any given time. This period can last from two to six years.
The Catagen period of hair growth comes next. It is then that hair growth begins to slow down. This period usually lasts two or three weeks. Finally, hair growth comes to a complete stop and the hairs begin to fall out. This period is known as Telogen. It affects about 15 percent of all hairs at a time.
On average, a person loses between 50 and 100 hairs every day. Since each hair grows at a different rate, this process is overlooked. Once the Telogen period has ended, the hair growth process begins again.
What does the underlined word “They” in the 2nd paragraph refer to?

A.The babies B.The hairs
C.The follicles D.The pregnant women

Anagen is the period when ________.

A.hairs grow the fastest
B.hairs grow at a different rate
C.hair growth comes to a stop
D.85 percent of hairs are growing

When some hairs are experiencing the period of Telogen, they ________.

A.grow very quickly B.slow down their growth
C.stop growing D.affects other hairs’ growth

Which of the following shows the process of hair growth?

A.Anagen → Telogen → Catagen
B.Anagen → Catagen → Telogen
C.Anagen
↗ ↘
Catagen ← Telogen
D.Anagen

↗  ↘
Telogen ← Catagen

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