Practice 1 Solid—Fuel Rocket and Liquid—Fuel Rocket 1
练习、答案及详析 2
Practice 2 Statistics:Its Development and Use 5
练习、答案及详析 6
Practice 3 Anglo Patrons' Influence on Hispanic and American Arts 8
练习、答案及详析 9
Practice 4 How Do Americans Become Wealthy? 11
练习、答案及详析 12
Practice 5 Oil Industry in Today's Norway 15
练习、答案及详析 16
Practice 6 Cacti 19
练习、答案及详析 20
Practice 7 Erosion:How to Do with It 22
练习、答案及详析 23
Practice 8 Animals Need Protection 26
练习、答案及详析 27
Practice 9 Herodotus—A Greatest Tourist 30
练习、答案及详析 31
Practice 10 Railroad Building in the 19th US 33
练习、答案及详析 34
Practice 11 Study of Hurricane 37
练习、答案及详析 38
Practice 12 Methods of Children's Education 41
练习、答案及详析 42
Practice 13 UFO 45
练习、答案及详析 47
Practice 14 Tunnel Building in New York 49
练习、答案及详析 50
Practice 15 G.W.Carver:His Work and Career 52
练习、答案及详析 53
Practice 16 Southeasterners' Views on Universe 55
练习、答案及详析 56
Practice 17 A Portrait of Grandma Moses 58
练习、答案及详析 59
Practice 18 Two Men in Henry's Lunch-Room 61
练习、答案及详析 62
Practice 19 World's Wild Areas 65
练习、答案及详析 66
Practice 20 Construction,Savings and The Stock Exchange 68
练习、答案及详析 69
Practice 21 Tides 72
练习、答案及详析 73
Practice 22 Human Intelligence:A Glimpse Into Its Complexity 75
练习、答案及详析 76
Practice 23 Social Sciences and Scientists and How to Prepare for a Career in Social Sciences 79
练习、答案及详析 80
Practice 24 Anything Wrong with British Postal Codes? 83
练习、答案及详析 84
Practice 25 About Fashion and Designer 86
练习、答案及详析 87
Practice 26 Women in Southern European Societies in 10th and 11th Centuries 90
练习、答案及详析 91
Practice 27 Kohoutek 93
练习、答案及详析 94
Practice 28 Attitudes Towards Police 96
练习、答案及详析 97
Practice 29 How to Solve the Problems of Lack of Gravity and Sickness 99
练习、答案及详析 100
Practice 30 How Do the Members of the Clubs Look at Crimes? 102
练习、答案及详析 103
Practice 31 How Does a Child Learn? 106
练习、答案及详析 107
Practice 32 Cultivating Oysters in a New Way 110
练习、答案及详析 111
Practice 33 A New Look at Employment 113
练习、答案及详析 114
Practice 34 Abian's Daring Suggestion 117
练习、答案及详析 118
Practice 35 The Growth of the Combination Company 121
练习、答案及详析 122
Practice 36 Botany:Its Past,Today and Tomorrow 124
练习、答案及详析 125
Practice 37 Studying Birds'Brains 128
练习、答案及详析 129
Practice 38 Carr Van Anda Believed in"Hard"News 132
练习、答案及详析 133
Practice 39 With What to Last a Lifetime 136
练习、答案及详析 137
Practice 40 Accountability 140
练习、答案及详析 141
Practice 41 In the Pawnshop 144
练习、答案及详析 145
Practice 42 On the Way to the Public Library 148
练习、答案及详析 149
Practice 43 About a System of Guaranteed Subsistence 152
练习、答案及详析 153
Practice 44 Why Do Women Stage a Demonstration? 156
练习、答案及详析 157
Practice 45 Neanderthals 160
练习、答案及详析 161
Practice 46 Recycling Old Buildings for Modem Use 163
练习、答案及详析 164
Practice 47 Plankton 166
练习、答案及详析 167
Practice 48 Space Debris:Its Problem 170
练习、答案及详析 171
Practice 49 Gertrude Stein and Development of Modern Literature 173
练习、答案及详析 174
Practice 50 About Hormones 176
练习、答案及详析 177
Practice 51 Good Taste 180
练习、答案及详析 181
Practice 52 Automobile 183
练习、答案及详析 184
Practice 53 US Higher Education in Latter 1800's 187
练习、答案及详析 188
Practice 54 Formation of Rain 191
练习、答案及详析 192
Practice 55 British Columbia 194
练习、答案及详析 195
Practice 56 Some Aspects of College Education 197
练习、答案及详析 198
Practice 57 Interplay Between School and Home 201
练习、答案及详析 202
Practice 58 Beaver 205
练习、答案及详析 206
Practice 59 US's Controversial Public-Land Policy 208
练习、答案及详析 209
Practice 60 United Nations 211
练习、答案及详析 212
Practice 61 Vegetative Propagation 215
练习、答案及详析 216
Practice 62 Free Enterprise in US 219
练习、答案及详析 220
Practice 63 American Indians' Role in American Revolution and Treatment 223
练习、答案及详析 224
Practice 64 Marketing of Wheat in Canada in the Early 20th Century 226
练习、答案及详析 227
Practice 65 Lewis and Clark Discovered Animal Species 229
练习、答案及详析 229
Practice 66 Alcoholism,a Worst Drug Problem in US 232
练习、答案及详析 233
Practice 67 Some Aspects of Birth Rate 236
练习、答案及详析 237
Practice 68 How Man Found His Way to America 240
练习、答案及详析 241
Practice 69 Problems of US Higher Education 244
练习、答案及详析 245
Practice 70 Before and in My Days on Mikonos 248
练习、答案及详析 249
Practice 71 Skyscrapers 252
练习、答案及详析 253
Practice 72 Questioning Anna 256
练习、答案及详析 257
Practice 73 Emily Dickinson 260
练习、答案及详析 261
Practice 74 What Does India Want for Her Rural Areas? 264
练习、答案及详析 265
Practice 75 The Cities Are Dying 268
练习、答案及详析 269
Practice 76 Basic Research vs.Applied Research 272
练习、答案及详析 273
Practice 77 On Climate of American Society 276
练习、答案及详析 278
Practice 78 Sanders,a Life-Saver 280
练习、答案及详析 281
Practice 79 An Inescapable Condition of Settled Social Existence 283
练习、答案及详析 284
Practice 80 Two Kinds of Productiveness 287
练习、答案及详析 288