On Mars:Animals in Space

<正>Reading 2 The first animals to reach space were fruit flies that the United States launched aboard captured German rockets in 1947.The first mammal to reach space was a rhesus monkey named Albert Ⅱ,who flew two years later.Both these missions were suborbital,as were all animal flights for about a decade.The first animal to orbit Earth was Laika,a dog launched by the Soviet Union in 1957 who died in orbit.The first animals to orbit Earth and land safely were the host of animals on the Soviet Sputnik 5 mission in 1960,led by dogs Strelka and Belka.