Unit 1 Past and present
現(xiàn)在完成時 + since + 一般過去時態(tài)
4. has the place changed a lot? 那個地方變化大么？
*change為不及物動詞，意思是“變化”。如：
things have changed a lot in suzhou.
all of my classmates have changed during these years.
* change into 表示“變成某物”。如：he tried to change iron into gold.
water changes into steam after it boils.
* change 作名詞let’s go to a restaurant for a change .great changes have taken place in china.
5. the noise was terrible when the plane took off.
當(dāng)飛機起飛的時候，噪音是很可怕的。
take off的意思是“起飛”；land的意思是“降落”。
take off 還有另一個意思，脫下（衣服）。如：
you’d better take off your coat because it’s too hot.
6. many of them have moved to other areas and i feel a bit lonely from time to time.
他們中的很多人已經(jīng)搬到了別的地方，有時我覺得有點孤單。
lonely的意思是“孤獨的，寂寞的”。alone的意思是“獨自一人”。
leave sb. /sth. alone 聽其自然, 不要去管, 讓某人獨自留在那
let sth. alone 隨它去；不干涉（打擾）
e.g.
the old man lived alone but he never felt lonely.
don’t feel lonely. you have our support.
他獨自一人在屋里。____________________
from time to time意為“時不時，時而”，= at times, sometimes。
他只是偶爾去看看電影。
he only goes to the cinema from time to time.
那個小偷不時地停下來張望。
the thief stopped to look around at times.
a bit意為“有一點點”，
類似于a little，可修飾動詞、形容詞或名詞,
通常的順序是：v. + a bit a bit+ adj.
a bit of +u.n(不可數(shù))
如：a bit lonely 有一點孤單
a bit of用來修飾名詞。
a bit of music 一點音樂
如：
would you please turn down the tv a bit?
i feel a bit nervous to speak in front.
7. —how well do you know sunshine town…?
—i know the place very well.
問到對某人/物/地有多少程度的了解時，用 “how well… know…?” 來提問。
e.g (1)你對中國的歷史有怎樣的了解�。�
how well do you know the history of china?
(2) she knew light rail a little.(劃線部分提問)
____ ____ _____ she know light rail?
8. however, it has become more difficult to see some of my old friends.
it 在本句中作形式主語，真正的主語是動詞不定式短語 to see some of my old friends. 此時，不把不定式結(jié)構(gòu)to see some of my old friends放在句首，而是放在句子的后部，以防頭重腳輕。
類似的結(jié)構(gòu)：it is + adj.+ for sb. to do sth.
it is our duty to help them.
it is easy for me to answer this question.
9. not…any more 表示“不再”。
he isn’t a student any more.
他不再是個學(xué)生了。
比較：not…any longer 與 not…any more
not…any more 常用來強調(diào)數(shù)量和次數(shù)；而not…any longer常用來強調(diào)時間或動作的延續(xù)。如：
the tv set has been repaired four times. it can’t be repaired any more.這臺電視機已修了四次了，不能再修了。