17世紀頃の大西洋で、海賊がさかんに暴れまわっていた頃の物語。 海賊は奪った宝をどこかの島に隠した。 宿屋の息子ジムは、偶然その宝島の地図を手に入れ、仲間たちと宝の発見に出帆した。 ジムたちの乗った船には海賊も混じっていた。 首領は一本足のシルバーだった。 やがて到着した宝島で、ジムの仲間と海賊たちとの激しい戦いが続いた。 絶望だと思われた頃、島に取り残されていたベンが現れた。 とうとうジムたちは宝物を発見することができた。

1. 受動態
   (We [won] the battle.) The battle [was won]. p.27
   (The captain [refused] this offer.) This offer [was refused] by the captain. p.26
2. 不定詞
   He was [to work] as the ship's cook. p.16
   Will you promise [not to run] away? p.36
3. 現在完了
   Someone [has opened] the chest. p.10
   We [have had] a hot day. @.20
   I [have] not [seen] a man for three years. p.22
4. 時制の一致
   (He [says] that others [are] dead.) He [said] that others [were] dead. p.23
   (I [think] he [must] be an honest man.) I [thought] he [must] be an honest man. p.15
5. 接続詞
   [If] you see him, tell me at once. p.2
   Let's wait [till] we find the treasure. p.20
   [After] the firing was over, I went to the stockade. p.25
   [As] we neared the top, a pirate sent up a cry of terror. p.39
   [As soon as] the boat got ashore, I jumped out. p.21
   Give us the map, [and] we will offer you a choice. p.25
   Stand, [or] we fire. p.25
   It was my wish to cut the rope [so that] they would not run away. p.29
6. 主語＋動詞＋補語
   The captain [grew] pale. p.3
   The pirates [became] very pale. p.40
   I waited till it [got] quite dark. p.30
   At last, I [fell] asleep. p.30
   The captain [looked] surprised. p.6
   He [seemed] weak from his wound. p.31
7. 主語＋動詞＋目的語
   We did not know [what to do]. p.4
   I don't know [where they are now]. p.34
8. it～ to～
   [It] was my wish [to cut] the anchor rope. p.29
9. 主語＋tellなど＋目的語＋不定詞
   The squire [told] me [to carry] a letter to John. p.13
   I have always [wanted] you [to join] us. p.34
10. 連語
    a little p.4
    after a while p.5
    at first p.4
    at last p.30
    at onece p.2
    be fond of p.2
    before long p.8
    break one's word p.37
    by oneself p.7
    by the way p.19
    come along p.6
    come up p.19
    each other p.37
    face to face p.26
    fall asleep p.18
    far away p.24
    find out p.23
    for a while p.1
    from now on p.37
    get away p.7
    get over p.26
    get to p.15
    give one's word p.36
    go on with p.36
    help oneself p.17
    hold out p.6
    in a hurry p.8
    in front of p.26
    leave for p.13
    look for p.13
    look out for p.2
    no longer p.44
    of course p.23
    on the whole p.17
    out of sight p.4
    pick up p.8
    run after p.15
    run away p.10
    run off p.24
    run up to p.26
    send up p.39
    set sail p.12
    sooner or later p.20
    start for p.13
    succeed in p.13
    think of p.22
    think to oneself p.9
    up and down p.31