| Unit 1 | |||||
| 1 | bike | uniform | walk to school | Ahmed | U.A.E. |
| 6 | Abu Dhabi | mosque | taught | tablet | device |
| 11 | bangle | Easter egg | matryoshka doll | Russia | Caitlin |
| 16 | Canterbury | let | twice | skill | encourage |
| 21 | confidence | let me 〜 | put on a play | carry | count |
| 26 | handout | fix | doghouse | website | across |
| 31 | For example, 〜. | Did you know that 〜? | stomach | brain | knock |
| 36 | enter | shut | rule | Rwanda | close |
| 41 | equator | thousand | hill | enough | schedule |
| 46 | divide | recess | Kinyarwanda | Swahili | official |
| 51 | kindergarten | multilingual | shift | at night | close to 〜 |
| 56 | That is because 〜. | divide 〜 into … | need to 〜 | ||
| Unit 2 | |||||
| 59 | scenery | sunset | |||
| 61 | shrine | afraid | wooden | perfect | harmony |
| 66 | be afraid of 〜 | not 〜 at all | Come on, guys. | amusement | amusement park |
| 71 | busy | I've | tram | yet | hotel |
| 76 | left | hurry | haven't | hasn't | Wait a minute! |
| 81 | Hurry up. | feed | fed | report | done |
| 86 | already | ever | seen | change | lately |
| 91 | return | deal | he's | catch up with 〜 | such a 〜 |
| 96 | What's up with 〜? | Here you are. | It's no big deal. | been | person |
| 101 | How many times 〜? | several | recommend | passport | rich |
| 106 | buffet | Singapore | paradise | starlight | |
| Unit 3 | |||||
| 110 | monument | ||||
| 111 | atomic | bomb | atomic bomb | peace | memorial |
| 116 | Peace Memorial Park | dome | Atomic Bomb Dome | remind | horror |
| 121 | reminder | mission | anyone | since | remind 〜 of … |
| 126 | work for 〜 | Does anyone have any questions? | How long 〜? | known | childhood |
| 131 | for a long time | realize | bombing | determined | especially |
| 136 | young | tragic | create | better | promote |
| 141 | be determined to 〜 | What can we do to 〜? | half | hour | boyfriend |
| 146 | the Thinker | century | Mona Lisa | panda | valuable |
| 151 | war | met | though | victim | survivor |
| 156 | generation | peaceful | however | get -er | year by year |
| 161 | pass 〜 on | meal | impossible | necessary | alone |
| 166 | brought | A-bomb(ing) | without | personal | Floyd Schmoe |
| 171 | American | sense | pain | collect | money |
| 176 | inspiration | taken | bring up 〜 | pass down 〜 | think of 〜 |
| Read 1 | |||||
| 181 | commute | steam | steam train | unfortunately | delay |
| 186 | worried | ceremony | sigh | relief | happen to 〜 |
| 191 | go on | self-study | geometry | cross | bridge |
| 196 | Grr, thump, thump! | frightening | noise | thick | smoke |
| 201 | rise | rose | fire | burn | intensely |
| 206 | dig | dug | hole | bury | glass |
| 211 | loquat | pea | potato | sweet potato | hide-and-seek |
| 216 | branch | at last | for the first time | right away | grade |
| 221 | average | excellent | toy | plane | winder |
| 226 | road | bran | rice bran | opponent | packet |
| 231 | bait | end | tidy up 〜 | get wet through | go out |
| 236 | take over 〜 | a packet of 〜 | polar | shark | African |
| 241 | elephant | species | extinct | danger | disappear |
| 246 | loss | climate | climate change | in danger | crossing |
| 251 | traffic | ||||
| Unit 4 | |||||
| 252 | AI | technology | daily | robot | |
| 256 | drone | smartphone | progress | lives | search |
| 261 | engine | search engine | respond | command | common |
| 266 | automatically | software | translation | quite | respond to 〜 |
| 271 | come up with 〜 | soft | skin | deliver | package |
| 276 | particular | address | machine | translate | phrase |
| 281 | agree | interact | foreign | might | anymore |
| 286 | disagree | agree with 〜 | navigation | raise | rapidly |
| 291 | exchange | broaden | understanding | What do you think? | hint |
| 296 | Rome | Paris | handball | directly | hate |
| 301 | depend | suppose | proper | remember | hate to 〜 |
| 306 | depend on 〜 | ||||
| Read 2 | |||||
| 307 | imagine | character | human | ～like | |
| 311 | factory | modern | variety | shape | improve |
| 316 | above | come true | a variety of 〜 | more and more | again and again |
| 321 | suit | HAL | rescue | dangerous | the Great East Japan Earthquake |
| 326 | nuclear | power | power station | NASA | develop |
| 331 | explore | Robonaut 2 | ISS | international | sent |
| 336 | Insight | reach | Mars | avatar | physical |
| 341 | severe | disability | autumn | user | disease |
| 346 | body | control | movement | live | microphone |
| 351 | service | advice | make friends with 〜 | connect | society |
| 356 | connect 〜 with … | I wish I could 〜. | solution | pollution | ocean |
| 361 | trash | affect | health | wildlife | save |
| 366 | shine | north | community | trash bag | provide |
| 371 | detailed | be part of 〜 | make a difference | feel free to 〜 | |
| Unit 5 | |||||
| 375 | plastic | ||||
| 376 | waste | presentation | dirty | terrible | shocking |
| 381 | familiar | plastic bag | single | throw | graph |
| 386 | amount | packaging | per | rank | durable |
| 391 | harm | environment | EU | EU28 | throw 〜 away |
| 396 | break down | What happens to 〜? | Korean | cushion | Bali |
| 401 | thrown | resident | pollute | ban | social |
| 406 | media | social media | governor | recycle | properly |
| 411 | planet | bye | you see | take action | give up on 〜 |
| 416 | handkerchief | pair | umbrella | lend | lent |
| 421 | mystery | mystery novel | a pair of 〜 | the day before yesterday | a kind of 〜 |
| 426 | article | reduce | major | chain | replace |
| 431 | straw | paper | effort | canvas | container |
| 436 | material | cotton | environmental | replace 〜 with … | make an effort |
| 441 | be made from 〜 | 〜 as well as … | eco-friendly | bottle | reuse |
| 446 | light | turn off 〜 | campaign | Melati and Isabel Wijsen | |
| 451 | Nelson Mandela | princess | Princess Diana | Mahatma Gandhi | Hawaii |
| 456 | gather | pick | signature | result | success |
| 461 | pick up 〜 | as a result | even | percent | discuss |
| 466 | solve | instead | focus | focus on 〜 | Tuvalu |
| 471 | sea-level | lung | rain forest | product | audience |
| 476 | breathe | digest | |||
| Unit 6 | |||||
| 478 | chorus | contest | matter | ||
| 481 | trouble | twist | wrist | while | few |
| 486 | until | be in trouble | a few 〜 | I have an idea. | What's the matter? |
| 491 | Dr. | woman | women | piece | beside |
| 496 | a piece of 〜 | invite | heal | T-shirt | design |
| 501 | conductor | solo | tale | The Tale of Genji | poem |
| 506 | unbelievable | strange | news | beginning | move to 〜 |
| 511 | at the beginning of 〜 | Unbelievable! | New Zealand | describe | artwork |
| 516 | monkey | ouch | bite | ear | frog |
| 521 | Tamara | attractive | Taiwan | relaxed | against |
| 526 | take a nap | ||||
| Unit 7 | |||||
| 527 | speech | make a speech | suddenly | expect | |
| 531 | chopstick | full | anxiety | graduate | possible |
| 536 | shock | not really | be full of 〜 | feel down | Fast forward three years, 〜. |
| 541 | fold | crane | build a fire | truth | basically |
| 546 | everywhere | respect | adventure | be different from 〜 | The truth is that 〜. |
| 551 | find 〜 out | There's no need to worry. | prime minister | test | wouldn't |
| 556 | memory | fill | fill 〜 with … | billion | gender |
| 561 | geography | Asia | America | Europe | education |
| 566 | college | dying | starvation | undernourished | overweight |
| 571 | shelter | access | non- | have access to 〜 | in order to 〜 |
| Read 3 | |||||
| 576 | the ozone layer | chemical | desert | be afraid to 〜 | vanish |
| 581 | forever | neither | salmon | dead | stream |
| 586 | delegate | government | organizer | reporter | politician |
| 591 | somebody | toward | goal | northern | needy |
| 596 | wealth | as if 〜 | bring 〜 back | spent | affection |
| 601 | willing | greedy | behave | fight | mess |
| 606 | creature | be willing to 〜 | teach 〜 not to ... | work 〜 out | comfort |
| 611 | grown-up | do the best | "You are what you do, not what you say." | ||
| Unit 8 | |||||
| 614 | goodbye | ambitious | |||
| 616 | usual | within | bored | get bored | keep in touch |
| 621 | Here's something for you. | Have a safe trip! | round | all year round | That's because of you! |
| 626 | accept | midnight | helpful | friendship | be there for 〜 |
| 631 | precious | importance | Cheers! | visa | Kaunas |
| 636 | Lithuania | Poland | Jewish | escape | Nazi |
| 641 | issue | escape from 〜 | pass through 〜 | permission | refuse |
| 646 | the Foreign Ministry | knew | risk | short | silence |
| 651 | wheel | telegram | Berlin | ask for 〜 | day and night |
| 656 | join hands | Good luck! | platform | forgive | trader |
| 661 | Mr. Nishri | Israeli | diplomat | kindness | courage |
| 666 | forgotten | even as 〜 | hand 〜 out | with tears in one's eyes | a piece of paper |
| 671 | Tom Sawyer | bright | appear | brush | fence |
| 676 | unlucky | Ben Rogers | sit down | say to oneself | at that moment |
| 681 | come to 〜 | gently | result | reply | rather |
| 686 | chance | add | turn from 〜 | would rather 〜 | What do you mean? |
| 691 | Do you mean that 〜? | step away | Aunt Polly | carefully | slowly |
| 696 | paid | right | plaything | discover | law |
| 701 | not every 〜 can … | I'm afraid 〜. | by the middle of 〜 | ||