Melatonin(褪黑素) is produced by the body to control when you get sleepy and whenyou wake up. As night falls, the levels of melatonin rise, telling the bodythat it’s time for bed. And the levels naturally fall as daylight comes near,getting you ready to greet the day.
Why do you need hobbies? A study has found thatpeople are more positive (积极的) when they take part in a relaxing activity. ___36___Scientists also think they might be good for your brain.
My arms were shaking and my heart was beating ____19____ when I stood at thestarting line. ____20____the endless runway (跑道), I felt like a boat fighting against the windand rain. I ____21____myself that simply joining in was a victory (胜利) itself.
My arms were shaking and my heart was beating ____19____when I stood at the starting line. ____20____ the endless runway (跑道), I felt like a boatfighting against the wind and rain.
Lastsummer, I was holding the net when Grandpa asked me ____19____ I couldhelp him teach Frank how to play chess. I said no because I wanted to catchfish. Grandpa had been the one who’d taught us how to catch fish, but then the ____20____ made him stay behind.
The fantasticman-made “forest” is a Singapore landmark. It is made from steel and concrete(水泥) covered in localflowers and plants. At night, 18 solar-powered tree-like towers which get theirenergy from the sun often light up the city.
If youthink you have walked into a library with a ____11____ likethat, you are exactly wrong. ____12____, you’ve entered the workplace of CourtneyHolmes, known as the Storybook Barber (理发师).
Late onenight, Gulliver received a warning that some nobles wanted him killed. Even theemperor of Lilliput wanted to give him less food to save ___16___. It was true Gulliver was very expensive.
Dudiscovered his interest in folding paper in his childhood. After Du went tocollege in 2017, he had enough time to take the hobby seriously. He learnedfolding from online teachers and experts. Later he copied patterns from books.He spent almost three years improving his basic skills by making copies ofother artists’ designs. Then he made his own creations.
Shuttlecock exercise doesnot require equipment(装备) and is perfect for people to perform at home.Liu Genghong helps you to keep going until the last minute, and you can burnyour fat fast.
Studying is not always the most interesting taskwithin your day, but it is a necessary one. Even though it is required,everyone has got bored at one time or another while studying.
At the age of seven, I started school in London.There I met a ____21____,Mr. King. He influenced my whole life. Mr King taught me maths. He washumorous. Sometimes, he told us funny stories. So his lessons made us ____22____.
“Her daughter passed away a few days ago. Now,she can’t do the same things she used to do with her daughter. She doesn’t knowwhat to do. Even little things like making dinner and cleaning the house areharder for her to do now. Maybe you can think of a way to help her,” her mothersaid.
Excitedly, he went to draw water(抽水), ___15___ he couldn’t pump water no matter how hard hetried. He sat on the ground ___16___.Just at that time, he saw a small bottle with a cork(瓶塞).
For a long time, I guarded the garden of peaceand quiet. When the children followed me into the garden, I would expect themto be out of sight (视野). And I would hand out tasks.
There wasa stone lying in the mountains for a long time. He had a dream—one day he couldfly up into the sky ___11___ a bird. When he told his dream to his friends,they all laughed at him.
Chinese taikonauts Zhai Zhigang, Wang Yaping andYe Guangfu carried out the Shenzhou-13 spaceflight mission (任务) that started on Oct. 15,2021. This mission lasts 6 months, which was also a national record.
All thefamily—my grandparents, my parents, my aunt and uncle, my cousin, my sister andI— ___22___ the turkey. However, turkey is not the easiestthing to ___23___. It takes a lot of time to prepare and a lot ofwork to cook…and there are a lot of chances for things to go wrong.
All thefamily—my grandparents, my parents, my aunt and uncle, my cousin, my sister andI— ___22___ the turkey. However, turkey is not the easiestthing to ___23___. It takes a lot of time to prepare and a lot ofwork to cook…and there are a lot of chances for things to go wrong.
Zu Ti was a great man of Jin Dynasty. He was ____16____ for his hard work andgreat achievements. But when he was a child, he was a naughty (顽皮的)boy who showed little ____17____ inreading. As he grew up, Zu Ti ____18____ hedidn’t have enough knowledge.