1. What is the speaker?
A.A teacher. | B.An editor. | C.A student. |
A.Communication skills. | B.High scores. | C.Experience. |
A.To learn to write. | B.To make money. | C.To have fun. |
A.Right after the meeting. | B.Tomorrow morning. | C.Next week. |
1. When will the listeners have their first classes?
A.Next Wednesday. | B.Today. | C.Next Friday. |
A.$12. | B.$69. | C.$7. |
A.Meet their teachers. | B.Take a course. | C.Go to a cafe. |
A.Get help from Mrs. Brown. |
B.Ask the speaker. |
C.Speak to their teachers. |
1. Which bike does the woman like?
A.The green one. | B.The black one. | C.The brown one. |
A.Expensive. | B.Beautiful. | C.Fashionable. |
A.In Australia. | B.In Holland. | C.In America |
A.Asking the shop owner for help. |
B.Having something to drink. |
C.Looking for stores in the United States. |
1. Where is the man doing a project about the environment?
A.At a library. | B.At school. | C.At a lab. |
A.To get information about a project. |
B.To know about her job. |
C.To do research on greenhouse effect. |
A.Solve the woman’s problem. |
B.Move some books. |
C.Do some reading. |
So scientists have
1. What is the matter with Mr. Smith?
A.He is unqualified for his job. | B.His leg is broken. | C.He got a sore throat. |
A.Chinese. | B.English. | C.Physics. |
A.He has to help his students prepare for the exam. |
B.He has trouble sleeping. |
C.He wants to visit a friend. |
8 . Everyone has unique needs and preferences, and individual sleep requirements are no different. However, the amount of sleep you need per night is mainly determined by your age.
Official recommendations for the length of a person’s sleep are broken down by age group:
Older adults (65+): 7–8 hours
Adults (18–64 years): 7–9 hours
Teenagers (14–17 years): 8–10 hours
School children (6–13 years): 9–11 hours
Preschoolers (3–5 years): 10–13 hours (including naps)
Toddlers (1–2 years): 11–14 hours (including naps)
Infants (4–12 months): 12–15 hours (including naps)
Newborns (0–3 months): 14–17 hours
However, some people might need more or less sleep than is generally recommended, depending on the following factors.
Genetic makeup
Your genetics are an important factor in how many hours of sleep you need per night.
For example, those with one specific genetic mutation (基因突变) need only around 6 hours, whereas people without it require about 8 hours, on average.
Sleep quality
The quality of your sleep can also affect how much you need.
If your sleep quality is poor, you may find that you still feel tired after getting what should be considered enough.
Therefore, it’s not only important to focus on sleeping long enough but also on sleeping well enough. If you often feel like you aren’t sleeping well or are extremely tired and don’t know why, it’s a good idea to check in with your healthcare provider.
1. What is the main reason for the amount of sleep we need per night?A.Sleep quality. | B.Genetics. | C.Our age. | D.Our eating habits. |
A.All the school children need to sleep for 9 to 11 hours. |
B.If you feel tired, please consult your healthcare provider. |
C.Those with genetic mutation only need to sleep around 6 hours. |
D.Due to poor sleep quality, you feel tired though you’ve slept enough. |
A.A travel brochure. | B.A health magazine. |
C.A fashion website. | D.A sports newspaper. |