國二下 · 單元 3 / 4

連接詞:and / but / or / so / because / when / ifConjunctions

學完你會:會用連接詞把兩個句子接起來,說出原因、結果、時間和條件,也知道 because 和 so 不能一起用。

  1. ① 文法課
  2. ② 單字 73
  3. ③ 句型與閱讀
  4. ④ 單元小考

① 文法課

and、but、or、so:把兩個一樣重要的句子接起來

and 是「而且、然後」,but 是「但是」,or 是「或者、否則」,so 是「所以」。兩個完整的句子用它們接起來時,連接詞前面通常加逗號。

  • I did my homework, and then I played games.我寫完功課,然後玩遊戲。

  • The bag is nice, but it's too expensive.這個包包很好看,但是太貴了。

  • Hurry up, or you'll miss the bus.快一點,不然你會錯過公車。

  • It was raining, so we stayed home.那時在下雨,所以我們待在家。

because 和 so 只能選一個

中文習慣說「因為……所以……」,兩個詞一起用。英文不行:because(因為)和 so(所以)一句只能用一個。because 放在原因前面,so 放在結果前面。because 開頭的子句放句首時,後面要加逗號。

  • I was late because I missed the bus.我遲到了,因為我錯過公車。

  • Because it was hot, we bought bubble tea.因為天氣很熱,我們買了珍珠奶茶。

  • It was hot, so we bought bubble tea.天氣很熱,所以我們買了珍珠奶茶。

when、before、after、while:說時間

when 是「當……的時候」,before 是「在……之前」,after 是「在……之後」,while 是「在……的期間」,常接進行式,表示某件事正在進行時。這些子句放句首時,後面加逗號;放句尾時不用。

  • When I got home, my dog ran to me.我回到家的時候,我的狗跑向我。

  • Wash your hands before you eat.吃東西前要洗手。

  • After we finished dinner, we watched TV.我們吃完晚餐後看了電視。

  • While I was taking a shower, the phone rang.我在洗澡的時候,電話響了。

if、when 子句:用現在式說未來

if 是「如果」。說未來的事時,if 和 when(表時間)的那半句要用現在式,另外那半句才用 will。中文「如果明天下雨」沒有時態,所以很多人會寫成 if it will rain,這是錯的。

  • If it rains tomorrow, we will stay home.如果明天下雨,我們就待在家。

  • I'll call you when I get to the station.我到車站的時候會打給你。

  • If you study hard, you will pass the test.如果你用功,你就會考過。

常用連接詞整理

連接詞意思例句
and / but / or而且 / 但是 / 或者、否則Do you want tea or coffee?
so所以(接結果)I was tired, so I went to bed.
because因為(接原因)I went to bed because I was tired.
when / while當……時 / 在……期間Call me when you are free.
before / after在……之前 / 之後Brush your teeth before you go to bed.
if如果If you are hungry, eat this sandwich.

because 和 so 不同時用;although 和 but 也不同時用。

常見錯誤

  • ✗Because I was sick, so I didn't go to school.
    ✓Because I was sick, I didn't go to school.中文「因為……所以……」一起用,英文 because 和 so 只能留一個。
  • ✗If it will rain tomorrow, we will stay home.
    ✓If it rains tomorrow, we will stay home.if 子句說未來也用現在式。
  • ✗I'll call you when I will get home.
    ✓I'll call you when I get home.when 表時間的子句說未來用現在式。
  • ✗I like dogs, but I like cats.
    ✓I like dogs, and I like cats.兩件事沒有相反,不能用 but;but 前後意思要相反。

會考怎麼考

會考克漏字常空下連接詞,要看前後兩句是原因、結果還是轉折才選得對;閱讀題的 Why 題,答案常藏在 because 或 so 後面。

② 這個單元的單字

國二下的 291 個字平均分給 4 個單元,這是第 3 段。

③ 句型與閱讀

④ 單元小考

10 題文法 + 5 題單字,80 分通過。填空和改錯不看大小寫與句尾標點。

  1. 1.I wanted to buy the shoes, ____ I didn't have enough money.

  2. 2.Ken didn't eat breakfast, ____ he was very hungry in class.

  3. 3.Put on your jacket, ____ you'll catch a cold.

  4. 4.If it ____ sunny tomorrow, we will go to the beach.

  5. 5.____ I was doing my homework, my brother was playing games.

  6. 6.Amy stayed home ____ she had a fever.

  7. 7.When Dad ____ home tonight, we will have dinner together. (come)

  8. 8.Turn off the lights ____ you leave the room.

  9. 9.改錯Because it was cold, so I wore a coat.

  10. 10.改錯If you will finish your homework, you can watch TV.

  11. 11.「liquid」是什麼意思?

  12. 12.「percent」是什麼意思?

  13. 13.「rubber」是什麼意思?

  14. 14.「poster」是什麼意思?

  15. 15.「master」是什麼意思?

已作答 0 / 15 題

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