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.

In these early days of rocket science， no one knew what spaceflight was like. Engineers flew animals， particularly dogs， monkeys and chimps， to learn how to launch and land living beings safely and to better understand how spaceflight might affect human bodies.

Since then， animals continue to play an important role in understanding the impact of microgravity on many biological functions. Astronauts have studied all kinds of animals— wasps， beetles， tortoises， flies， worms， fish， spiders， rabbits， bees， ants， frogs， mice， crickets， rats， minnows， snails， moths， brine shrimp， jellyfish， butterflies and cockroaches， among many others.

Now that scientists want to travel to Mars，what creatures will they send up to explore the effects of the long voyage and the conditions on the planet if they reach it？

What do you think of sending animals into space？

如果將來有一天人類可以移居火星，你有幸成為其中一員，那么到了火星，你會選擇做什么樣的工作呢？做建筑師，在極寒的火星建造保暖的房屋？或者是當農(nóng)民，在火星上研究并種植農(nóng)作物？請充分發(fā)揮你的想象力，說說你在火星的理想工作。

My dream job on Mars

If one day humans can live on Mars， I want to be a farmer. I want to grow crops and vegetables.

I am willing to raise animals like chickens， ducks and pigs. So I can provide food for people on Mars. That is why I want to be a farmer. What is more， food is important for people to live on Mars. Humans can’t stay healthy without fresh food and it is difficult to find enough fresh food on Mars. So I want to help make sure everyone has enough healthy food.

To be a farmer on Mars， I will learn more about farming and growing plants. I need to come up with more ways to plant in different environment on Mars.

第一段之前還需要添加一段，總領(lǐng)全文，引出最喜歡的工作是農(nóng)民。

第二段講述想要這樣做的兩個理由時缺乏邏輯性，建議通過添加連詞增強邏輯性。

第三段闡述作為農(nóng)民在火星上具體做什么、如何做時，內(nèi)容不夠豐富，可以使用描述性詞語添加細節(jié)，豐富內(nèi)容。

建議再添加一個結(jié)尾點題，首尾呼應(yīng)。

My dream job on Mars

If humans can move to Mars one day， different kinds of jobs will be needed there. If I am lucky enough to be one of them， I will choose to be a farmer to help people offer more food on Mars.

I want to do this because of the following two reasons. First， it is not easy to grow food on Mars. But without enough food， people can’t live there. Second， if people can have a taste of some delicious food， they may live a much happier life on Mars.

To solve the food problem， we will research how to grow enough food on Mars that is also tasty. I will bring different seeds to Mars to test which kinds of food grow better there. Also， more research will be done to create a better environment for vegetables to grow such as looking for the proper soil， air and water.

No pain， no gain. I will do whatever I can to make my dream come true.

文章結(jié)構(gòu)清晰，主題明了，首尾呼應(yīng)。小作者在第一段開門見山地指出想成為農(nóng)民，第二段講述想要這樣做的兩個理由，第三段講述如何具體地做好這份工作，并且中間兩段都有主題句統(tǒng)領(lǐng)全段，層次分明，最后一段再次點題，指明要努力實現(xiàn)自己的理想。小作者運用 first， second 等連詞，使得段落和句子銜接更加流暢連貫。文中用到if條件狀語從句、賓語從句和定語從句等高級句型結(jié)構(gòu)，也體現(xiàn)了小作者的語言功底。