练习材料：
Lesson 30-3 Exploring the sea-floor
From the shoreline, out to a distance which may be anywhere from a few miles to a few hundredmiles, runs the gentle slope of the continental shelf, geologically part of thecontinents. The real dividing line between continents and oceans occurs at thefoot of a steeper slope.
This continentalslope usually starts at a place somewhere near the 100-fathom mark and in thecourse of a few hundred miles reaches the true ocean floor at 2,500- 3,500fathoms. The slope averages about 1 in 30. but contains steep, probablyvertical, cliffs, and gentle sediment-covered terraces, and near its lowerreaches there is a long tailing-off which is almost certainly the result ofmaterial transported out to deep water after being eroded from the continentalmasses.
ɪksˈplɔːrɪŋ ðə siː-flɔː
frɒm ðə ʃɔː laɪn,
aʊt tuː ə ˈdɪstᵊns wɪʧ meɪ biː ˈɛnɪweə frɒm ə fjuː maɪlz tuː ə fjuː ˈhʌndrəd maɪlz,
rʌnz ðə ˈʤɛntᵊl sləʊp ɒv ðə ˌkɒntɪˈnɛntᵊl ʃɛlf, ˌʤiəˈlɒʤɪkᵊli pɑːt ɒv ðə ˈkɒntɪnənts. ðə rɪəl dɪˈvaɪdɪŋ laɪnbɪˈtwiːn ˈkɒntɪnənts ænd ˈəʊʃᵊnz əˈkɜːz æt ðə fʊt ə ˈstiːpə sləʊp.
ðɪs ˌkɒntɪˈnɛntᵊl
sləʊp ˈjuːʒʊəli stɑːts æt ə pleɪs ˈsʌmweə nɪə ðiː 100-ˈfæðəm mɑːk ænd ɪn ðə kɔːs ɒv ə fjuː ˈhʌndrəd maɪlz
ˈriːʧɪz ðə truː ˈəʊʃᵊn flɔːr æt 2,500- 3,500 ˈfæðəmz. ðə sləʊp ˈævərɪʤɪz əˈbaʊt
1 ɪn 30. bʌt kənˈteɪnz stiːp, ˈprɒbəbli ˈvɜːtɪkᵊl, klɪfs, ænd ˈʤɛntᵊl ˈsɛdɪmənt-ˈkʌvəd
ˈtɛrəsɪz, ænd nɪər ɪts ˈləʊə ˈriːʧɪz ðeər ɪz ə lɒŋ ˈteɪlɪŋ-ɒf wɪʧ ɪz ˈɔːlməʊst
ˈsɜːtnli ðə rɪˈzʌlt ɒv məˈtɪəriəl trænsˈpɔːtɪd aʊt tuː diːp ˈwɔːtər ˈɑːftə ˈbiːɪŋ ɪˈrəʊdɪd frɒm ðə ˌkɒntɪˈnɛntᵊlˈmæsɪz.
任务配置：L0 + L4
知识笔记：
单词：1、gentle：温和，柔和，平缓，2、slope：坡，坡度，倾斜，3、geologically：地质学上，4、dividing：划分，5、in the course of：在……的进程中，6、vertical：垂直的，7、sediment：沉淀，沉渣，8、terraces：梯田，9、tailing-off：尾随，10、eroded：侵蚀，11、masses：群众
音标：
练习感悟：虽然有打结的地方，但是录了一遍就达标还是特别爽。
网友评论