美国国家地理分级读物《Ladders》系列

适合中学生的分级课外读物，主题多样、角度新颖、轻薄易读，帮孩子通过广泛涉猎各种素材加速过阅读关，还能有效对接未来升学、考试。

类型：	电子书,美国国家地理分级读物,分级读物,英语,

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「」美国国家地理分级读物《Ladders》系列

01.初级核心阅读【32本】

All Together Now-420L.pdf (30.3 MB)

All Together Now-540L.pdf (25.2 MB)

All Together Now-710L.pdf (26.5 MB)

All Together Now-840L.pdf (26.4 MB)

Amazing Plants-450L.pdf (48.7 MB)

Amazing Plants-570L.pdf (44.3 MB)

Amazing Plants-710L.pdf (45.7 MB)

Amazing Plants-820L.pdf (45.3 MB)

Birthday Celebrations-450L.pdf (34.9 MB)

Birthday Celebrations-570L.pdf (29.8 MB)

Birthday Celebrations-720L.pdf (30.8 MB)

Birthday Celebrations-840L.pdf (30.5 MB)

Dinosaurs-410L.pdf (43.1 MB)

Dinosaurs-530L.pdf (39.1 MB)

Dinosaurs-680L.pdf (41.3 MB)

Dinosaurs-840L.pdf (40.1 MB)

Forces of Nature-450L.pdf (40.3 MB)

Forces of Nature-580L.pdf (37.1 MB)

Forces of Nature-720L.pdf (39.3 MB)

Forces of Nature-810L.pdf (40.6 MB)

Make a Difference-430L.pdf (34.0 MB)

Make a Difference-550L.pdf (30.9 MB)

Make a Difference-690L.pdf (30.9 MB)

Make a Difference-840L.pdf (31.3 MB)

Mixed-Up Matter-380L.pdf (29.9 MB)

Mixed-Up Matter-490L.pdf (25.9 MB)

Mixed-Up Matter-640L.pdf (26.6 MB)

Mixed-Up Matter-800L.pdf (26.8 MB)

Onward-400L.pdf (34.9 MB)

Onward-490L.pdf (30.7 MB)

Onward-670L.pdf (32.4 MB)

Onward-820L.pdf (32.7 MB)

02.初级自然科学【30本】

Hidden Discoveries-530L.pdf (35.6 MB)

Hidden Discoveries-650L.pdf (32.6 MB)

Hidden Discoveries-790L.pdf (31.4 MB)

Keep Outl Keep Away-580L.pdf (33.8 MB)

Keep Outl Keep Away-690L.pdf (29.4 MB)

Keep Outl Keep Away-780L.pdf (31.0 MB)

Ladders-Earth Science-Big Storm-580L.pdf (38.4 MB)

Ladders-Earth Science-Big Storm-720L.pdf (34.4 MB)

Ladders-Earth Science-Big Storm-810L.pdf (32.6 MB)

Ladders-Earth Science-Cool Caves-590L.pdf (37.1 MB)

Ladders-Earth Science-Cool Caves-740L.pdf (33.5 MB)

Ladders-Earth Science-Cool Caves-840L.pdf (33.9 MB)

Ladders-Earth Science-Destination Space-610L.pdf (34.6 MB)

Ladders-Earth Science-Destination Space-710L.pdf (30.8 MB)

Ladders-Earth Science-Destination Space-860L.pdf (31.1 MB)

Ladders-Earth Science-Eruption-590L.pdf (39.9 MB)

Ladders-Earth Science-Eruption-700L.pdf (35.3 MB)

Ladders-Earth Science-Eruption-810L.pdf (36.5 MB)

Ladders-Earth Science-Roller Coasters-570L.pdf (35.5 MB)

Ladders-Earth Science-Roller Coasters-710L.pdf (32.7 MB)

Ladders-Earth Science-Roller Coasters-860L.pdf (32.0 MB)

On Assignment with Joel Sartore-600L.pdf (39.1 MB)

On Assignment with Joel Sartore-710L.pdf (35.0 MB)

On Assignment with Joel Sartore-820L.pdf (33.7 MB)

Tricks,Traps,and Tools-550L.pdf (31.9 MB)

Tricks,Traps,and Tools-680L.pdf (27.6 MB)

Tricks,Traps,and Tools-810L.pdf (27.3 MB)

Tropical Rain Forest Adventure-620L.pdf (37.5 MB)

Tropical Rain Forest Adventure-720L.pdf (33.1 MB)

Tropical Rain Forest Adventure-810L.pdf (34.3 MB)

03.初级社会科学【21本】

Brazil-590L.pdf (35.9 MB)

Brazil-690L.pdf (31.3 MB)

Brazil-810L.pdf (32.5 MB)

India-540L.pdf (34.0 MB)

India-640L.pdf (31.0 MB)

India-790L.pdf (31.3 MB)

Kenya-600L.pdf (34.1 MB)

Kenya-720L.pdf (31.4 MB)

Kenya-820L.pdf (31.4 MB)

Living by the Water-600L.pdf (33.0 MB)

Living by the Water-710L.pdf (30.3 MB)

Living by the Water-840L.pdf (30.7 MB)

Living in the Desert-570L.pdf (32.9 MB)

Living in the Desert-710L.pdf (30.7 MB)

Living in the Desert-830L.pdf (30.6 MB)

Living on the Coast-600L.pdf (34.6 MB)

Living on the Coast-700L.pdf (30.4 MB)

Living on the Coast-830L.pdf (31.2 MB)

Living on the Plains-550L.pdf (35.5 MB)

Living on the Plains-680L.pdf (31.6 MB)

Living on the Plains-840L.pdf (31.5 MB)

04.中级核心阅读【20本】

01 The Quest!.pdf (48.6 MB)

02.pdf (45.6 MB)

03.pdf (45.0 MB)

04.pdf (45.7 MB)

05 Moon Mysteries!.pdf (40.3 MB)

06.pdf (36.2 MB)

07.pdf (37.1 MB)

08.pdf (35.3 MB)

09 Lend Me a Paw!.pdf (33.3 MB)

10.pdf (29.3 MB)

11.pdf (29.5 MB)

12.pdf (30.0 MB)

13 Nature's Genius!.pdf (37.9 MB)

14.pdf (33.8 MB)

15.pdf (33.8 MB)

16.pdf (34.6 MB)

17 Worth Saving!.pdf (44.6 MB)

18.pdf (41.6 MB)

19.pdf (41.9 MB)

20.pdf (42.4 MB)

05.中级自然科学【30本】

01 The Chesapeake Bay!.pdf (50.3 MB)

02.pdf (45.5 MB)

03.pdf (42.6 MB)

04 Let's Cook!.pdf (39.1 MB)

05.pdf (36.0 MB)

06.pdf (36.2 MB)

07 Pattems!.pdf (48.7 MB)

08.pdf (45.8 MB)

09.pdf (45.5 MB)

10 Weird but True!.pdf (44.8 MB)

11.pdf (44.2 MB)

12.pdf (40.9 MB)

13 Let's Keep Moving!.pdf (46.3 MB)

14.pdf (41.4 MB)

15.pdf (40.9 MB)

16 Super Structures!.pdf (49.8 MB)

17.pdf (46.1 MB)

18.pdf (46.0 MB)

19 Tim Samaras.pdf (44.7 MB)

20.pdf (40.7 MB)

21.pdf (40.7 MB)

22 Exploring Coral Reefs!.pdf (47.8 MB)

23.pdf (45.7 MB)

24.pdf (41.8 MB)

25 At the Movies!.pdf (48.9 MB)

26.pdf (47.9 MB)

27.pdf (46.0 MB)

28 Smart Animals!.pdf (41.2 MB)

29.pdf (38.4 MB)

30.pdf (38.1 MB)

06.中级社会科学【39本】

Empire State Building-1.pdf (49.0 MB)

Empire State Building-2.pdf (46.0 MB)

Empire State Building-3.pdf (48.7 MB)

Golden Gate Bridge-1.pdf (47.5 MB)

Golden Gate Bridge-2.pdf (43.2 MB)

Golden Gate Bridge-3.pdf (42.8 MB)

Great Lakes-1.pdf (50.9 MB)

Great Lakes-2.pdf (46.9 MB)

Great Lakes-3.pdf (46.8 MB)

Great Plains-1.pdf (48.9 MB)

Great Plains-2.pdf (44.7 MB)

Great Plains-3.pdf (45.2 MB)

Gulf Coast-1.pdf (50.5 MB)

Gulf Coast-2.pdf (46.6 MB)

Gulf Coast-3.pdf (47.1 MB)

Mount Rushmore-1.pdf (51.7 MB)

Mount Rushmore-2.pdf (47.2 MB)

Mount Rushmore-3.pdf (47.2 MB)

Native Americans of the Great Plains-1.pdf (49.0 MB)

Native Americans of the Great Plains-2.pdf (44.5 MB)

Native Americans of the Great Plains-3.pdf (45.4 MB)

Native Americans of the Pacific Northwest-1.pdf (48.1 MB)

Native Americans of the Pacific Northwest-2.pdf (44.8 MB)

Native Americans of the Pacific Northwest-3.pdf (45.1 MB)

Native Americans of the Southeast-1.pdf (50.4 MB)

Native Americans of the Southeast-2.pdf (46.1 MB)

Native Americans of the Southeast-3.pdf (46.1 MB)

Native Americans of the Southwest-1.pdf (53.9 MB)

Native Americans of the Southwest-2.pdf (48.4 MB)

Native Americans of the Southwest-3.pdf (52.9 MB)

Niagara Fals-1.pdf (52.6 MB)

Niagara Fals-2.pdf (48.6 MB)

Niagara Fals-3.pdf (48.8 MB)

North Atlantic Coast-1.pdf (54.1 MB)

North Atlantic Coast-2.pdf (50.1 MB)

North Atlantic Coast-3.pdf (49.5 MB)

Pacific Coast-1.pdf (49.6 MB)

Pacific Coast-2.pdf (45.5 MB)

Pacific Coast-3.pdf (45.6 MB)

07.高阶核心阅读【24本】

Catch the Light-670L.pdf (39.3 MB)

Catch the Light-790L.pdf (35.8 MB)

Catch the Light-920L.pdf (37.5 MB)

Catch the Light-990L.pdf (37.0 MB)

Connections to Nature-750L.pdf (45.2 MB)

Connections to Nature-860L.pdf (42.0 MB)

Connections to Nature-940L.pdf (41.7 MB)

Connections to Nature-1010L.pdf (41.0 MB)

Moving Into the Future-780L.pdf (38.9 MB)

Moving Into the Future-830L.pdf (34.9 MB)

Moving Into the Future-920L.pdf (36.1 MB)

Moving Into the Future-1000L.pdf (35.8 MB)

The Old West-630L.pdf (32.9 MB)

The Old West-780L.pdf (30.4 MB)

The Old West-890L.pdf (31.2 MB)

The Old West-980L.pdf (30.1 MB)

Transformers-700L.pdf (31.0 MB)

Transformers-790L.pdf (27.2 MB)

Transformers-890L.pdf (28.0 MB)

Transformers-990L.pdf (28.5 MB)

Watery World-730L.pdf (48.4 MB)

Watery World-800L.pdf (45.7 MB)

Watery World-900L.pdf (45.4 MB)

Watery World-980L.pdf (45.9 MB)

08.高阶自然科学【30本】

African Savanna-1.pdf (46.1 MB)

African Savanna-2.pdf (43.0 MB)

African Savanna-3.pdf (43.1 MB)

Earth's Crazy Climate-1.pdf (41.6 MB)

Earth's Crazy Climate-2.pdf (41.1 MB)

Earth's Crazy Climate-3.pdf (39.3 MB)

Exploring Above and Beyond-1.pdf (46.6 MB)

Exploring Above and Beyond-2.pdf (44.2 MB)

Exploring Above and Beyond-3.pdf (42.7 MB)

Going Green-1.pdf (51.1 MB)

Going Green-2.pdf (46.3 MB)

Going Green-3.pdf (47.0 MB)

Nature Has the Answers-1.pdf (40.5 MB)

Nature Has the Answers-2.pdf (36.5 MB)

Nature Has the Answers-3.pdf (36.8 MB)

Power Up-1.pdf (45.4 MB)

Power Up-2.pdf (43.5 MB)

Power Up-3.pdf (41.3 MB)

The Disappearing Badlands-1.pdf (48.4 MB)

The Disappearing Badlands-2.pdf (43.1 MB)

The Disappearing Badlands-3.pdf (45.0 MB)

The Galdpagos Ilslands-1.pdf (37.5 MB)

The Galdpagos Ilslands-2.pdf (36.2 MB)

The Galdpagos Ilslands-3.pdf (34.9 MB)

The Sinking of the Titanic-1.pdf (45.2 MB)

The Sinking of the Titanic-2.pdf (41.8 MB)

The Sinking of the Titanic-3.pdf (41.2 MB)

The World's Ocean-1.pdf (43.3 MB)

The World's Ocean-2.pdf (40.2 MB)

The World's Ocean-3.pdf (40.7 MB)

09.高阶社会科学【33本】

Big Bend National Park-1.pdf (45.1 MB)

Big Bend National Park-2.pdf (38.8 MB)

Big Bend National Park-3.pdf (39.4 MB)

Everglades National Park-1.pdf (52.4 MB)

Everglades National Park-2.pdf (48.7 MB)

Everglades National Park-3.pdf (48.8 MB)

Grand Canyon National Park-1.pdf (46.4 MB)

Grand Canyon National Park-2.pdf (44.1 MB)

Grand Canyon National Park-3.pdf (45.9 MB)

Great Smoky Mountains National Park-1.pdf (48.4 MB)

Great Smoky Mountains National Park-2.pdf (46.0 MB)

Great Smoky Mountains National Park-3.pdf (46.1 MB)

The Azte-1.pdf (55.0 MB)

The Azte-2.pdf (50.4 MB)

The Azte-3.pdf (49.5 MB)

The Declaration of Independence-1.pdf (40.7 MB)

The Declaration of Independence-2.pdf (37.6 MB)

The Declaration of Independence-3.pdf (38.4 MB)

The Inca-1.pdf (51.0 MB)

The Inca-2.pdf (47.2 MB)

The Inca-3.pdf (46.4 MB)

The Maya-1.pdf (50.3 MB)

The Maya-2.pdf (46.3 MB)

The Maya-3.pdf (46.6 MB)

The Pueblo-1.pdf (45.1 MB)

The Pueblo-2.pdf (41.5 MB)

The Pueblo-3.pdf (42.0 MB)

Yellowstone National Park-1.pdf (48.7 MB)

Yellowstone National Park-2.pdf (44.9 MB)

Yellowstone National Park-3.pdf (44.5 MB)

Yosemite National Park-1.pdf (50.7 MB)

Yosemite National Park-2.pdf (47.2 MB)

Yosemite National Park-3.pdf (47.3 MB)

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