一、请根据空格后的中文提示、英文释义或句意，写出句中所缺单词，使句子通顺。
1. ____________（和……相比） with our school flat, his house seems like a palace.
2. It is said that the first ______________ （people who go to live in a new place） of this country were prisoners.
3. Soon we came to a very wide street full of all sorts of ____________ （交通工具）。
4. The earth is one of the sun’s ______________. It goes around the sun.
5.The woman knew that the nearest village was ______________（英里）away.
二、请根据句意从方框中选用合适的词，并用其适当形式填空，使句子通顺
（nine crowd bad enjoy pollute special human）
1. We are interested in Mars, but only two _________ of us want to travel there.
2. We should protect the environment because ________ air and water do great harm to us.
3. ___________ have to wear special boots to keep themselves much heavier on Mars.