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• 4.有關擴散現象，下列敘述何者不正確？(A)擴散是溶質從溫度高往溫度低區域運動 (B)溫度越高擴散現象越明顯(C)粒子均勻分布於水中時仍不斷地運動 (D)由於粒子擴散，最終使溶液中各處濃度相等。
• 5.下列有關誤差的敘述，何者錯誤？(A)測量值與實際值之間有差異，不代表所用測量工具有問題(B)測量儀器越精密，實驗方法越合理，實驗操作越謹慎，誤差就會越小(C)使用相同的實驗步驟與測量工具，就一定可
• 6.有一個密度為 7.1 公克∕立方公分的正立方體鋅塊，若將其對切成兩半，則半個鋅塊的密度為多少公克∕立方公分？(A)3.55 (B)7.1 (C)14.2 (D)28.4。
• 7.小芬的衣服沾到油汙，用肥皂水洗不乾淨，媽媽建議她用棉花沾去漬油擦擦看，結果很快就把油汙擦乾淨了。關於這個生活小常識，下列敘述何者正確？(A)油汙可以溶解在去漬油中 (B)去漬油是白色的，可覆蓋黑色
• 8.小雯測量同一枝原子筆長度五次，結果分別為 14.32 公分、14.34 公分、14.35 公分、14.33 公分、14.31 公分，則測量結果如何表示最適當？(A)14.33 公分 (B)14.3
• 2.承諾 (A) promise (B) planet (C) pilot (D) plastic
• 3.便利的 (A) clear (B) cloud (C) chopsticks (D) convenient
• 4. A_________ has a long body but no legs.(A) turtle (B) snake (C) star (D) giant
• 5._________ the dirty clothes in the water first. Then you can clean them easily.(A) Hit (B) Sort (C
• 6. Wilson_________ and fell to the ground.(A) cut (B) lost (C) tripped (D) agreed
• 7. In the relay race, Cathy dropped the _________and we lost the race.(A) knee (B) baton (C) team (D
• 8. Can you help me_________ these books and put them on the shelf (架子)?(A) throw (B) cheer (C) mean
• 9. To_________ the cost on traffic (交通), David decides to go to work by bike.(A) reduce (B) kill (C)
• 10. Clark can't_________ sugar_________ salt. That surprises me.(A) lead；to (B) tell；from (C) k
• 11. Everyone practiced hard,_________ we still lost the game.(A) however (B) and (C) but (D) so
• 12. A: Go! Go! Go!_________ B: I see! Let’s cheer our team up!(A) They lost the race already. (B) Wh
• 13. We must be quick,_________ we'll be late for school.(A) or (B) so (C) and (D) but
• 14. I think the road ends here； it won't go any _________ . Shouldn't we turn back?(A) clo
• 15. A：Did Mary look _________ at that time? B：Yeah. She looked_________ at Tom.(A) happily；happier (
• 16. A：_________ the end of the contest, our team sang and danced so well. B：So, _________ the end, y
• 17. Karen, you are practicing very hard for the talent contest. Now it's time to talk_________a
• 18. Can you speak much _________ ? And can the time also go more_________ ? I need to finish myrepor
• 19. I seldom eat fast food, and my brother_________ .(A) does, too (B) doesn’t, either (C) always do
• 20. To help save the planet , let's eat meat_________ often and ride our bikes_________ often.(
• 21. A: Ouch! B:_________ . A: I just cut my finger.(A) Are you in trouble? (B) You should keep this