Unit 6 I like music that I can dance to.
（2）物（n.）+ that + 從句
比較：一本有趣的書 an interesting book 形容詞做定語
a book that is interesting 從句做定語 （book是先行詞）
4. 關(guān)系代詞who / that的作用：
a. 做代詞, 代替先行詞
b. 在從句中擔任句子成分:主語或賓語
c. 做連詞, 把主句和從句連接起來
5. 成分比較
who\that在從句中可擔任: 1.主語 2. 賓語
（1）i love singers who write their own songs.
who在從句中用作主語。
（2）he is the man who i met yesterday.
who在從句中用作賓語。
（3）i like music that i can dance to.
that在從句中用作賓語。
（4）i prefer a sandwich that is really delicious.
that在從句中用作主語。
6. who/that在定語從句中做主語時，謂語動詞的單復數(shù)應與先行詞保持一致.
e.g. i prefer shoes that are cool.
i like a sandwich that is really delicious.
i love singers who are beautiful.
i have a friend who plays sports.
7. 定語從句的關(guān)系詞與其他從句的引導詞的區(qū)別
試比較： i like music that i can dance to.
the music is great because you can dance to it
that 與because 的區(qū)別：that是定語從句的關(guān)聯(lián)詞，代替music在從句中做dance to
的賓語。而because是原因狀語從句的引導詞，只起到連詞的作用，在句中不做成分。在dance to 后面加it 指代music.