Unit 1 Life on Mars
在上句中,connecting to… 是現(xiàn)在分詞短語作定語,修飾 a computer
8、however, in some ways, life on mars may not be better than life on earth today. 然后,從某些方面說,火星上的生活可能沒有今天地球上的生活好。
in some ways = in a way = in one way
9、a power that keeps us from floating in the air. (p.6) 一種阻止我們?cè)诳諝庵衅哪芰Α?br>keep sb. from doing sth. 預(yù)防/防止某人做某事,相當(dāng)于prevent sb from doing sth.
eg. the rain kept us from going out.
vocabulary
1、takes high-quality images 拍高畫質(zhì)的圖像
take 在這里的意思是拍攝
eg. take photos
2、fixed to the walls to prevent floating 被固定在艙壁上以防止漂浮。
fix 用作動(dòng)詞,表示“將……固定在另一個(gè)物體上”,“安裝”,“使……固定”,常與to連用
eg. please fix the shelf to the wall.
the table was fixed to the floor.
3、which do you think is the least important?
the least important 最不重要的, the most important
less important 不太重要的, more important
do you think 是個(gè)插入語,不作成份
此時(shí)若疑問詞作主語,語序不變;若疑問詞作其它成份,后面的句子需要用陳述句語序。
eg. who (do you think) is over there? (你認(rèn)為)誰在那里?
what (do you think) has happened? (你認(rèn)為)發(fā)生了什么事?
what do you think i should do? 你認(rèn)為我該做什么?
where do you think you most like to go? 你認(rèn)為你最喜歡去哪里?
grammar a
a using ‘can’,‘could’,‘may’and‘might’to talk about permission. 用can,could,may,might表示請(qǐng)求或給予許可。
1、can 常用于口語中,表示非正式的請(qǐng)求,請(qǐng)求對(duì)象一般是朋友或家人。
eg. can i use your computer?
can i watch tv, mum?
2、could 是can的過去式,但在口語中,could常代替can來向?qū)Ψ轿竦靥岢稣?qǐng)求,比can正式,請(qǐng)求的對(duì)象一般是老師或成年人,這時(shí)could不表示過去時(shí)態(tài),回答時(shí)一般用can或can’t。
eg. could i ask a question, mr. li?
yes, you can. / no, you can’t.
3、may 也可用來征求對(duì)方的意見,表示“可以”,相當(dāng)于can,但比can更正式和禮貌,請(qǐng)求的對(duì)象一般是陌生人或你所尊敬的人。
eg. may i borrow this helmet?
yes, you may. / no, you may not.
4、might 是may 的過去式,但它也可以用來征求對(duì)方的意見,比may、could更禮貌,但很少用。這時(shí)might不表示過去時(shí)態(tài),回答用may。
eg. might i speak to him now?
yes, you may. / no, you may not. / i’m afraid not.