Word

Word Family

Collocations

Example sentence

Synonyms

Antonyms

Other

advise (v)

 

 

 

 

p.27 The shape is important. For a new skater, I'd advise something shallow -not too deep.

 

 

 

ينصح

aerodynamic (adj)

 

 

 

 

p.22 The riderís shorts are made from Kevlar and nylon because they are aerodynamic.

 

 

ديناميكي هوائي

alloy (n)

 

 

 

 

p.22 The rims are made of aluminum alloy because it is light and strong.

 

 

سبيكة خليطة

bearings (n)

 

 

ball bearings كرسي بيلي

 

p22. Steel is used for making the wheel bearings because it is hard.

 

 

فولاذ يستعمل لصنع محمل كريات الدواليب

bend (v)

 

 

 

 

p.23 If you bend or stretch it, will it go back to its original shape?

 

 

 

يحني

brittle (adj)

 

 

 

 

p.25 Glass is very brittle.  It breaks easily.

stiff and therefore easily broken, fragile

 flexible and therefore not easily broken

هش سريع الانكسار

cable (n)

 

 

 

 

p.23 Braided steel is used for making the brake cables because is very strong.

 

 

سلك حبل

composite (n)

 

 

 

 

p.27 I'd go for a wooden deck - wood is more responsive than plastic or a composite.

 

 

 

تركبية

deck (n)

 

 

 

 

p.27 A student of materials science is advising his friend how to choose the right skateboard deck.

 

 

 

طابق في سفينة أو باص

 

elastic (n)

 

 

(adj) p.23 How elastic is it? If you bend or stretch it, will it go back to its original shape?

 

 

American English:  Do you have a rubber band to hold these papers together?

British English and French:  Do you have an elastic to hold these papers together?

 

 

مطاطي (adj)

flexible (adj)

 

 

 

 

 

p. 23 Aluminum is light and strong but it's not flexible.

 

bendable, able to be bent

stiff, not flexible

مَرِن

frame (n)

 

 

 

 

p.23 When I choose a material for a bike frame, I have to think about the properties of the material.

 

 

 

إطار

Word

Word Family

Collocations

Example sentence

Synonyms

Antonyms

Other

grip (n)

 

 

 

 

p.22 Rubber is used for the tyres and pedals because it provides a good grip.

 

 

مسك

identify (v)

 

 

 

 

 

 

p.24 Identify the main material in items of sports equipment 1-10.  Mugni p.552 He identified the bridge in the picture.

 

 

استعف الجسر Mugni p.552 He identified the bridge in the picture.

lightweight (adj)

 

 

 

 

p.22 The helmet is made from polystyrene and polycarbonate because they are strong and lightweight.

 

 

 

 

من ا لوزن الخفيف

limit (v)

 

 

 

 

p.23 So aluminium bike frames use large diameter tubes. That limits the amount of bending.

 

 

 

يحدد

original (adj)

 

 

 

 

 

p. 23 It's got good elasticity so when it bends it tends to return to its original shape.

 

 

 

أصلي

pedal (n)

 

 

 

 

p. 22 Rubber is used for the tyres and pedals because it provides a good grip.

 

 

 

 

دواسة (الدراجة)

perform (v)

 

 

 

 

p.26 These help the skateboarder perform tricks.

 

 

 

يقوم بِ

property (n)

 

 

 

 

p.23 When I choose a material for a bike frame. I have to think about the properties of the material.

 

 

 

صفة خاصة

ratio (n)

 

 

 

 

p.23 Titanium has a great strength-to-weight ratio.

 

 

 

 

 

نسبة

 

recommend (v)

 

 

كتاب توصية   (n)a letter of recommendation

 

p.27 If you're going to use it mainly on the street, I'd recommend a short board and not too wide so you'll have more control.

 

 

 

 

 

وصي (أو) أوصي

responsive (adj)

 

 

 

 

p.27 I'd go for a wooden deck - wood is more responsive than plastic or a composite.

 

 

 

سريع الاستجابة

rim (n)

 

 

 

 

 

 

p.22 The rims are made of aluminium alloy because it is light and strong.

 

 

حافة مستديرة

Word

Word Family

Collocations

Example sentence

Synonyms

Antonyms

Other

screw (n)

 

 

(v)p.26 The top part of the truck is called

the baseplate. It's screwed to the deck.

 

 

 

 

(n) You use a screwdriver to screw in a screw. You use a hammer to hammer in a nail.

 

 

مسمار محوي= برغي

shallow (adj)

 

 

 

 

p.27 The shape is important. For a new skater, I'd advise something shallow -not too deep.

 

 

 

قليل العمق

smooth (adj)

 

 

 

 

p.27 Do you want to skate in the street, skate parks, on smooth surfaces?  Iíd go for 97A.

sleek, glossy

rough خشن

ملِس

stretch (v)

 

 

 

 

 

 

p.23 If you bend or stretch it, will it go back to its original shape?

 

 

 

يمطط  يمط

support (v)

 

 

(n) p.26 The trainer senses the surface you're running on and adjusts the amount of support provided.

 

 

 

 

Oxford Word Power p.778 Large columns support the roof.  Which political party do you support?

 

 

أيد يحمل

tough (adj)

 

 

 

 

Oxford Word Power p. 815 The old American cars had tough steel bumpers.  Today, they have flimsy bumpers made of cheap plastic.

strong not easily broken

flimsy, weak, easily broken

صلب

vary (v)

 

 

 

 

 

 

 

p.26 The hardness of the wheels varies.

 

 

 

يختلف

water-resistant (adj)

 

 

 

 

Oxford Word Power p. 653 This watch is water-resistant.

 

 

ضد الماء

wear (n)

 

 

menswear, underwear

 

Oxford Word Power p. 861 Youíll need jeans and jumpers for everyday wear.

 

 

ملابس

 

wear-resistant (adj)

 

 

(n)the French Resistance

 المقاومة ضد النازية

 

p.25 Kevlar doesnít wear out easily.  Itís wear-resistant.

 

 

صبرو ضد البِلى