Bab 38 Choukai 4

 Bab 38 Choukai 4

Mondai 1

Hajimeni 

     Umi wa chikyuu zentai no jitsu ni nanajuu pa- sento o shimete imasu. Kono umi no mizu o tsukatta enerugi- o riyou shiyou toiu no ga, nami iyou enerugi- o riyou shita hatsuden desu. 

     Umi no enerugi- o denryoku ni kaeru houhou wa iroiro arimasu ga, sono naka no hitotsu, nami no chikara o riyou shita haryoku hatsuden no shikumi ni tsuite setsumei shimasu. Ue no terasuto o mi nagara, kiite kudasai. 

     Umi no nami wa, taezu agattaru sagattari no undou o kuri kaeshite imasu. Haryoku hatsuden wa, kono nami no jouge undou, tsumari nami ga agattari sagattari suru undou o riyoushite denki o tsukurimasu.

     Kono zu wa, haryoku hatsuden no shikumi o arawashite imasu. Kono zu kara wakaru youni, hatsuden souchi no naka no kuuki ga, nami no jouge undou niyotte, soto ni detari, naka ni haittari shimasu. Sousuru koto de, kuuki no nagare ga dekite, kono kuuki no nagare niyotte, ta-bin ga mawatte, denki o tsukurimasu. Kono shikumi o mou sukoshi kuwashiku setsumei shimashou.

     Zu no A o mite kudasai. A wa nami ga agatta toki desu. Nami ga agaru to, (1) no youni kuuki no nagare ga dekimasu. Kono kuuki ga (2) no youni ue nu agatte, ta-bin o kaiten sasemasu. Soshite, ta-bin o mawashita kuuki wa, migi ni (3) no hen kara dete ikimasu.

     Tsugi ni, B o mite kudasai. Kondo wa nami ga sagatta toki desu. (4) no youni nami ga sagaru ti, (5) no hen ga hiraite, kuuki ga haitte kimasu. Haitta kuuki wa (6) no youna kuuki no nagare o tsukuttw, ta-bin o kaiten sasemasy. Soshite, ta-bin o mawashita kuuki wa, (7) no youni nagarete ikimasu.

     Kono youni, nami ga agattari sagattari o kuri kaesu koto niyotte kuuki no nagare ga de ki, sono chikara de ta-bin ga kaiten shite hatsuden ki o ugokashi, denki ga tsukurareru wake desu. 

     Haryoku hatsuden wa, nihon no youni, umi ni kakomarete ite, taezu nami ga oshi yosete iru kuni ni wa, pittari ni hatsuden souchi desu.

Haryoku hatsuden toiu no wa, donna mono desu ka. A B C kara hitotsu erande kudasai.

A Umi no mizu no ondo henka o riyuu shite, denki o tsukurimasu.

B Umi no nami no jouge undou o riyuu shite, denki o tsukurimasu. O

C Umi no kaze no nagare no chikara o riyuu shite, denki o tsukurimasu.

II Irasuto o mi nagara mou ichido kiite, haryoku hatsuden no shikumi ni tsuite no bun o kansei shi nasai. 

A zu nami ga agatta toki 

B zu nami ga sagatta toki 

Haryoku hatsuden wa (nami no jouge undou) o riyuu shite, denki o tsukuru shikumi desu. A no zu youni, nami ga agatta toki wa, kuuki no nagare ga (2) no youni (ue ni agatte), ta-bin o (kaiten sase) masu. 

Mata, B no zu no youni, nami ga sagatta toki ni wa, (5) no hen kara haitta kuuki wa (6) no youna (kuuki no nagare o tsukutte), ta-bin o (kaiten sase) masu. 

Kono youni, nami ga agattari sagattari o (fuchidori kaesu) koto niyotte (kuuki no nagare ga deki), sono chikara de hatsudenki o ugokashi, (denki ga tsukurareru) wake desu. 

Hitoromemo 

Haryoku hatsuden wa, bui (a buoy kouro ryoushiki) ya toudai de fukyuu shite kimashita. Umi de tsukau kogata no dengen to shite wa, haryoku hatsuden wa taiyou denchi ni kurabete shuuryoku ga ookii metayori ni sarete imasu. Nisen roku nen gendai6, nihon kokunai de wa sambyaku juugo no, haryoku hatsuden niyotte hikari o dasu bui ga jissai ni tsukawarete imasu. Taiyou denchi to haryoku hatsuden o kumi awaseta bui mo arimasu. Saidai no mo wa ooitaken no mizu no kotoudai ni ari, nisen gohyaku watto no hatsuden nouryoku ga aru sou desu.