Louis Armstrong, the most influential jazz musicians, is considered great not only because of his {#blank#}1{#/blank#} (achieve) but also because of his personalities.

    {#blank#}2{#/blank#} (bear) in a poor family in New Orleans in 1901, instead of {#blank#}3{#/blank#} (commit) crimes to get money like some boys in his situation, Louis would sing on the streets in order to earn a few cents from {#blank#}4{#/blank#} (passer-by).However, at the age of 12, Louis was arrested because of firing a gun into the air at a New Year's Eve party. In a school of problem boys, he was taught to play drums and the trumpet, {#blank#}5{#/blank#} enabled him to find work related with music after he left the school.A well-known musician Joe “King” Oliver noticed Louis and began to teach him about jazz.When Oliver left New Orleans in 1917，Louis took {#blank#}6{#/blank#} his job in one of the best bands in town.

    After becoming famous, Louis would introduce his particular style of jazz to enthusiastic audiences while {#blank#}7{#/blank#} (travel) around the United States as well as Europe.Apart from being a famous jazz musician, he was also an unofficial goodwill ambassador who spoke {#blank#}8{#/blank#} (public) about the rights of black people in America. Despite the fact {#blank#}9{#/blank#} he became rich and famous, Louis Armstrong continued to live a simple live in a working-class neighbourhood.He continued playing and recording until July 6th, 1971, when he died in his sleep at his home in New York.He is still remembered as the most {#blank#}10{#/blank#} (distinguish) musician in the early history of jazz.

    The carrier rocket sent a Shenzhou-ll spacecraft（航天器）with astronauts Chen Dong and Jing  Haipeng into space. The rocket was fired from the Jiuquan Satellite Launch Center{#blank#}1{#/blank#}the Gobi desert. After two days in Earth's orbit, the spacecraft{#blank#}2{#/blank#}(be) to link up with China's space laboratory, called the Tiankong-2,{#blank#}3{#/blank#}name means" Heavenly Palace 2". The lab {#blank#}4{#/blank#}(place) into orbit last month.

    A black hole is a spot in space that has{#blank#}1{#/blank#}(power) gravity. Its gravity is so strong that it pulls everything nearby into it, stars, planets and other things. Black holes form when a star dies. When that happens, a huge amount of matter crowds into a very small space,{#blank#}2{#/blank#}becomes very dense. Black holes{#blank#}3{#/blank#}(talk) about in 1783 first. That year, one scientist said that in the universe, there might be places with strong gravity to trap light, although he didn't use the term "black hole".

    Almost all the ice covering the Bering Sea has melted(融化), scientists have confirmed, {#blank#}1{#/blank#} (throw) communities living around {#blank#}2{#/blank#} (it) shores into disorder. The region's ice cover {#blank#}3{#/blank#} (normal) lasts for at least another month, and this year it has disappeared earlier than any other year except 2017.

    Living in {#blank#}4{#/blank#} northern Pacific Ocean between Alaska and Russia, the Bering Sea is experiencing the climate change and has drawn attention this year for record-breaking levels of winter melting. In February, rising Arctic temperatures {#blank#}5{#/blank#} (lead) to around half the region's disappearing in the space of two weeks.

    A report {#blank#}6{#/blank#} (send) by the International Arctic Research Centre at the University of Alaska Fairbanks has outlined the real-world effects of these surprising environmental {#blank#}7{#/blank#} (change) on the many communities {#blank#}8{#/blank#} live in the Bering Sea region.

    In their report, the International Arctic Research Centre scientists wrote that while not every year will be as bad as this one, ice {#blank#}9{#/blank#} (form) is likely to remain low if the Bering Sea's waters remain warm. They also warn that communities will need to "prepare for more winters {#blank#}10{#/blank#} low sea ice and stormy conditions".