Unit 10 · I Wonder What Happened — Full Unit

I Wonder What Happened

The complete Unit 10 in one interactive page: words, grammar, listening, speaking, reading and writing.

الوحدة العاشرة كاملة في صفحة تفاعلية واحدة: مفردات، قواعد، استماع، محادثة، قراءة، وكتابة.

1Words
2Match
3True/False
4Listen
5Speculate
6Talk
7Spelling
8Context
9Listening
10Pronunciation
11About You
12Conversation
13Vocabulary
14Writing
15Grammar
01

Learn the Words تعلّم الكلمات

Tap a card to flip it and hear the word — tap again to flip it back.

0 / 15
🎉
Excellent! You learned all the words!ممتاز! لقد تعلمت كل الكلمات!
02

Match the Meaning طابق المعنى

Tap a word, then tap the definition that matches it.

اختر الكلمة أولًا، ثم اختر المعنى الصحيح لها.

Words

Meanings

03

True or False صح أم خطأ

Read each statement and decide if it is true or false.

04

Listen & Choose اسمع واختر

Press play, listen to the word, then pick its Arabic translation.

05

Past Events & Speculation أحداث ماضية وتخمين

Tap a strange scene from page 154, then speculate about what happened using must have, might have, or could have. اضغط على أحد المشاهد الغريبة من صفحة 154، ثم خمّن ما حدث باستخدام must have أو might have أو could have.

Tap a scene above to start speculating. اضغط على مشهد أعلاه لتبدأ التخمين.

06

Talk About It تحدّث عن الموضوع

Read the example, then write your own language question and answer about a lesson word or grammar point.

Q

What's the difference between "must have" and "might have"?

A

"Must have" means we're almost certain; "might have" means it's only a possibility.

Q

What's the past participle of "take," for the past perfect tense?

A

The past participle is "taken" — so the past perfect is "had taken."

07

Spelling إملاء

Listen to the word, then type its correct spelling.

08

Language in Context اللغة في السياق

Look at the picture in the book and imagine what had happened before Mr. and Mrs. Jones got home. Write a past perfect sentence for each clue. انظر إلى الصورة في الكتاب وتخيّل ما الذي حدث قبل أن يعود السيد والسيدة جونز إلى المنزل. اكتب جملة بالماضي التام لكل دليل.

09

Listening الاستماع

Listen to the two strange events, then answer true or false. استمع إلى الحدثين الغريبين، ثم أجب بصح أو خطأ.

Invented passage — not printed in the book
Tap to listen to the passage اضغط للاستماع إلى النص
10

Pronunciation النطق

Listen and notice the -er ending in these words: crater, driver, recover, water, discover. Click the -er word in each sentence, then check. استمع ولاحظ نهاية -er في هذه الكلمات، ثم اضغط على كلمة -er في كل جملة وتحقق من إجابتك.

Practice sentences invented to contextualize the book's word list

B. Practice your own sentence جملتك الخاصة

Type a sentence and mark the important word with ** on each side, like **this**. Then listen to it and practice reading it aloud. اكتب جملة وضع ** حول الكلمة المهمة، ثم استمع إليها وتدرّب على نطقها.

11

About You عنك أنت

In pairs, ask and answer the questions, then switch roles. في أزواج، اسأل وأجب عن الأسئلة، ثم تبادلا الأدوار.

12

Conversation محادثة

Find and underline examples of -er at the end of words, and practice reading the conversation in pairs. ابحث عن أمثلة لنهاية -er في الكلمات وتحتها خطًا، وتدرّب على قراءة المحادثة مع زميلك.

Excuse me. = a way to start a conversation with a stranger

Gee! = an exclamation to express surprise

Beats me! = I have no idea!

You never know. = Anything is possible.

Your Ending — what does Greg say?

About the Conversation عن المحادثة

Your Turn دورك

A. Role-play the conversation with a partner. Speculate about the object found in the park. أ. مثّل المحادثة مع زميلك، وخمّنا معًا ما هو الجسم الغريب في الحديقة.

B. Imagine you are a reporter. Give a report about what happened at the park. ب. تخيّل أنك مراسل صحفي، واكتب تقريرًا عمّا حدث في الحديقة.

13

Key Vocabulary أهم المفردات

Learn key words from the Vision 2030 reading — flip the cards, then match, listen, and spell. تعلّم كلمات مهمة من نص رؤية 2030 — اقلب البطاقات، ثم طابق واستمع وتهجّ.

1. Learn the Words تعلّم الكلمات

Tap a card to flip it and hear the word — tap again to flip it back.

0 / 9
🎉
Excellent! You learned all the words!ممتاز! لقد تعلمت كل الكلمات!

2. Match the Meaning طابق المعنى

اختر الكلمة أولًا، ثم اختر المعنى الصحيح لها. (كما في تمرين After Reading في الكتاب)

Words

Meanings

3. Listen & Choose اسمع واختر

Press play, listen to the word, then pick its Arabic translation.

4. Spelling إملاء

Listen to the word, then type its correct spelling.

14

Writing الكتابة

Read about the history of remote controls, then research and describe a famous vessel, voyage, or expedition. اقرأ عن تاريخ أجهزة التحكم عن بُعد، ثم ابحث واكتب وصفًا لمركبة أو رحلة أو بعثة استكشافية شهيرة.

A. Reading: The History of Remote Controls تاريخ أجهزة التحكم عن بُعد

Read the article and identify the different stages remote controls went through. اقرأ المقال وحدّد المراحل المختلفة التي مرّت بها أجهزة التحكم.

Years/decadePeople involvedMain characteristicsFunctions
The History of Remote Controls تاريخ أجهزة التحكم عن بُعد

4. What is the focus/topic of each paragraph? Write your idea, then reveal a model answer. ما موضوع كل فقرة؟ اكتب فكرتك، ثم اكشف إجابة نموذجية.

B. Research a Vessel, Voyage, or Expedition ابحث عن مركبة أو رحلة أو بعثة استكشافية

Look at the picture of the Kon-Tiki. Find out about the Kon-Tiki, or choose another vessel, voyage, or expedition. Use the Internet or your school library, make notes in the chart, then write a short description.

A model of the Kon-Tiki, the boat used by Norwegian explorer Thor Heyerdahl to prove that pre-Inca people could have sailed from South America to the islands in the Pacific.
Writing Corner

When you write a description of an event:

  • Research/collect all the information you need
  • Make clear, organized notes that can be read at a glance
  • Organize your information in paragraphs, bullet points, charts, etc.
  • Use past tenses and passive forms to relate history
  • Include your own and/or others' views on the event
15

Form, Meaning and Function الشكل والمعنى والوظيفة

Review the past perfect tense and modals of speculation, then practice with real exercises from the book. راجع الماضي التام وأفعال التخمين، ثم تدرّب بتمارين حقيقية من الكتاب.

Past Perfect Tense الماضي التام

Use the past perfect tense (had + past participle) to indicate an action that happened before another action in the past.

When we arrived at the airport, our flight had already left.

They couldn't get in the house because they had forgotten the key.

Questions (?)Short Answers (+)Short Answers (−)
HadI/you/he/she/we/they been there before?Yes, ... had.No, ... hadn't.

Note: The contraction 'd for had — I'd (I + had), you'd (you + had), and so on — can be used with the past perfect.

A. Complete the sentences أكمل الجمل

Complete the sentences using the verbs in parentheses. Use the simple past and the past perfect forms.

Can't, Could, Couldn't, Must, May, or Might أفعال التخمين

Use can't, must, may, or might to make suppositions, to speculate about something, and to draw conclusions.

  • Use must to say we are sure of something.
  • Use can't or couldn't to say that we think something is impossible.
  • Use may, might, or could to say that something is possible.

Present

It can't be a balloon. Balloons aren't shaped like that. It might be a glider. But gliders don't fly vertically. It must be a helicopter.

Past

It couldn't have been a balloon. Balloons aren't shaped like that. It might have been a glider. But gliders don't fly vertically. It must have been a helicopter.

B. Complete the sentences أكمل الجمل

Complete the sentences using can't, must, or might.

C. Look at the pictures انظر إلى الصور

Look at the pictures and explain what you think must have happened, might have happened, and could have happened. Example:

He must have slept late. He might have forgotten to set his alarm clock. He could have stayed up late last night.
Picture descriptions below are my own visual summary of the book's photos

More Grammar in This Unit قواعد إضافية في هذه الوحدة

Independent Clauses with And, But, Or, So, and Yet

An independent clause expresses a complete thought and can stand alone as a sentence: A meteorite crashed through their two-story house.

Two or more independent clauses can be combined with coordinating conjunction words such as and, but, or, so, and yet. Use a comma before the conjunction.

Neighbors said they hear a terrific noise, yet no-one reported it to the police.

Mr. and Mrs. Fausset's house was destroyed, so they moved.

The Past with Dependent Time Clauses

We can talk about a past event using a time clause with when, as soon as, before, after, while, until, and since. When the time clause comes before the main clause, use a comma between the two clauses.

When they arrived home, they discovered to their amazement that a meteorite had crashed through the roof.

Expressing Enthusiasm with Intensifiers and Adjectives

IntensifiersGradable AdjectivesNon-Gradable Adjectives
very, really, quitescary, good, interesting, small, big
absolutely, really, quiteterrifying, amazing, fascinating, tiny, massive

Note: We can use really with both kinds of adjectives — it means a lot. When we use quite before a gradable adjective, it means a little. When we use quite before a non-gradable adjective, it means completely.

A. Complete the Witness Report أكمل تقرير الشاهد

Complete the witness report with the correct form of the verb in the past. Compare with a partner.

Conditional Sentences with Present and Future Forms

Use conditional sentences with if to talk about real causes and results. You can also use when in place of if.

Present Facts — use the simple present tense in both clauses: When a meteoroid enters the earth's atmosphere, chemical interactions and gasses cause it to heat up and form a fireball.

Future Facts — use the simple present in the if-clause and the future with will in the result clause: If you don't leave now, you will be late.

May/Might — use may/might in the result clause to suggest something is possible, but not certain: If you see a meteorite falling through the sky, it may be a stony meteorite, or it might be an iron meteorite. The third type of meteorite is a stony-iron meteorite, but these are very rare.

Express Necessity and Lack of Necessity

Q

What should I do if I see something strange in the sky?

A

You need to video or photograph the object, if you have a camera phone. You have to call an expert to get their opinion. You don't need to (needn't) worry. Strange things fall out of the sky on a regular basis all around the world!

C. Complete the sentences أكمل الجمل

Complete the sentences. Use the simple present tense and will, may, or might in the second clause.

D. A College Professor's Advice نصيحة أستاذ جامعي

Read a college professor's notes on what to do if you find a meteorite. Write his advice in full sentences using modals to express necessity or lack of necessity.

💡 If you think you have found a meteorite, you must photograph it.
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