Have you ever {#blank#}1{#/blank#} (stay) up late? If so, you know that not getting enough sleep can make you tired. Not sleeping enough can also make {#blank#}2{#/blank#} hard to think clearly the next day.

    Sleep scientists have long known that getting a good night's sleep is of great {#blank#}3{#/blank#} (important). It helps kids to be able {#blank#}4{#/blank#} (do)their best during the day.

    A recent study shows that sleep {#blank#}5{#/blank#} (help) improve problem-solving skills and {#blank#}6{#/blank#}(create) thinking. For the study, two groups of students answered {#blank#}7{#/blank#} math problems. The group that slept for eight hou rs solved the problem {#blank#}8{#/blank#} (correct) more often than the group that did not get enough sleeping.

    While you sleep {#blank#}9{#/blank#} night, your brain is busy doing its “homework”. It sorts out (整理) the information {#blank#}10{#/blank#} you get in the day. Getting enough sleep each night can improve your thinking ability. That will surely help you do your best at school. Experts say that, in return, can lead to better grades.

    Two businessmen{#blank#}1{#/blank#}  (fly) to Australia to play in a weekend golf match. Their team won and they both received green jackets. {#blank#}2{#/blank#}their last night in Australia, they stayed up late drinking beer. They were still drunk in the morning, {#blank#}3{#/blank#}they drove their rented car to the airport. The road was empty. Suddenly, something jumped in front of the car. The driver couldn't stop in time and the car hit it.

    The men got out of the car and found a large kangaroo{#blank#}4{#/blank#}  (lie) on the road. The drunken men began to laugh and decided to take some photos with the “dead” kangaroo. One of the men decided to put the jacket on{#blank#}5{#/blank#} kangaroo. So they dressed the poor kangaroo in a green jacket. Then they posed with it for some photos. Suddenly, something amazing happened. The kangaroo opened {#blank#}6{#/blank#} eyes. It was not dead. But it was very {#blank#}7{#/blank#} (anger). The kangaroo hit the two men and knocked them out. Then it ran {#blank#}8{#/blank#}.In the kangaroo's new green jacket were the car keys, a passport, and the air tickets.

    Later that day, a motorist phoned the police. “You're {#blank#}9{#/blank#}going to believe this,” he said, “but a kangaroo in a green golf jacket{#blank#}10{#/blank#} (run) along the road to the airport!” The police finally found out the whole story, and they punished the two drunken men.

    Johnny Carson began his career in television in his {#blank#}1{#/blank#}(twenty). First he worked at local stations in Nebraska. Several years {#blank#}2{#/blank#}(late), he moved to Los Angeles, California. It was "The Tonight Show"{#blank#}3{#/blank#} made Johnny Carson famous for thirty years. He became{#blank#}4{#/blank#} most popular star of American television. He {#blank#}5{#/blank#} (call) "the king of late night". Critics  (评论家) said Americans from all parts of the country liked him and {#blank#}6{#/blank#} (feel) they knew him. He did not take his fame{#blank#}7{#/blank#} (serious). Carson's special skill was his sense of humor. Audiences laughed at his jokes {#blank#}8{#/blank#} he made at the beginning of his show. However, sometimes they laughed even {#blank#}9{#/blank#} (hard) at the jokes that failed. He was the most powerful performer on television. Many comedians and singers became successful after {#blank#}10{#/blank#} (appear) on "The Tonight Show".

    Don Ritchie was a famous Australian man. For nearly 50 years, he successfully stopped 160 people from killing {#blank#}1{#/blank#} (they) at a cliff (悬崖), with just a kind word and a smile.

    Don was a real gentleman, he purposely chose to live right across the street from the cliff, just because he wanted to save lives of {#blank#}2{#/blank#} (stranger). He would wake up every morning and look out of the window for anyone {#blank#}3{#/blank#} (stand) too close to the edge of the cliff. If he saw someone and thought they might jump, he would {#blank#}4{#/blank#} (simple) walk over with a smile and say, "Is there something I could do to help you?" That sounds very simple, {#blank#}5{#/blank#} it worked – Ritchie tried to have a talk with these people and ended up inviting them back to his house {#blank#}6{#/blank#} tea or breakfast.

    In a situation {#blank#}7{#/blank#} most people would turn a blind eye, with such simple actions taken by Don, he saved 160 lives. He {#blank#}8{#/blank#} (give) the Local Hero Award in Australia in 2011. Don passed away at the age of 85 in 2012. His story {#blank#}9{#/blank#} (touch) the hearts of all Australians and challenged us to rethink {#blank#}10{#/blank#} it means to be a good neighbor.