与你的同伴讨论一下在地球上生活的优势与劣势。

frightening

意为“令人恐惧的”，作形容词。frightening是在动词frighten的基础上加上后缀-ing构成的。即：v．＋-ing＝adj．。又如：interesting。

你能写出几个相同结构的词吗？________　________　________

enjoyable

意为“令人愉快的”，作形容词。enjoyable是在动词enjoy的基础上加上后缀-able构成的。即：v．＋-able＝adj．。又如：comfortable。

你能写出几个相同结构的词吗？________　________　________

polluted

意为“被污染的”，作形容词。polluted是在动词pollute的基础上加上后缀-ed构成的。即：v．＋-ed＝adj．。又如：excited。

你能写出几个相同结构的词吗？________　________　________

hopefully

意为“〈口语〉但愿；怀着希望地”，作副词。hopefully是在形容词hopeful的基础上加上后缀-ly构成的。即：adj．＋-ly＝avj．。又如：carefully。

你能写出几个相同结构的词吗？________　________　________

speed

1)n．[C;U]the rate at which something moves or happens

e．g．The car was travelling at a ________ of 30 mph．

We work at different ________．

2)v．(sped, sped)to move or happen quickly

e．g．He jumped into his car and ________ off into the night．

She was ________ when the police stopped her．

own

1)adj．Belonging to or for a particular person

e．g．I have my ________ bedroom．＝I have a bedroom of my ________．

We make our ________ special pumpkin lanterns for Halloween．

2)v．to possess something

e．g．We only rent the house．We don't ________ it．

如果你仅仅拿三样东西去月球上，这些东西会是什么？并给出理由。请使用下列结构：

If I go to the moon, the three things I will take with me are ________．I want to take ________ because ________．

Walkman

Walkman是由work和man构成的，英语中称之为合成词。又如：sunglasses。

请你写出几个合成词：________　________　________

pollution

意为“污染”，作名词。是在动词pollute的基础上加上后缀-ion构成的。即：v．＋－tion＝n．。又如：information。

你能写出几个相同结构的词吗？________　________　________