كتاب الطالب اللغة الإنجليزية الصف السابع نخبة الفصل الأول

الصف الصف السابع
الفصل لغة انجليزية الصف السابع
المادة انجليزي الصف السابع الفصل الاول
حجم الملف 13.40 MB
عدد الزيارات 857
تاريخ الإضافة 2022-10-29, 17:44 مساء

كتاب الطالب اللغة الإنجليزية الصف السابع نخبة الفصل الأول


How food webs work

Food webs are different from food chains. Some top predators eat many different types of animals. For example, a lion eats zebras, gazelles, and hyenas. A food chain is simple, it starts when one animal eats one thing then another animal eats that  thing. For example, Plant mouse + eagle

The mouse eats the plant. The eagle eats the mouse. When you connect food chains together, it becomes a food web

Ihe food web below has a producer, herbivores and consumers and a top carnivore. There are seven species in this food web Some are predators; some are prey

'Ihe producer is a plant. Butterflies, rabbits and rats eat the plant. These are herbivores. Lizards eat the butterflies and snakes eat the rats. These are carnivores. Eagles eat a variety of prey. They eat rabbits and rats. They also eat lizards and snakes. Nothing eats the eagle. This means the eagle is the top predator

 

Shipping robots

A very large online shopping company uses robots - close to 50,000, in fact! But why so many ? An what for? This company started using robots several years ago in its warehouses to make shipping reall fast and easy. What are the robots like? They are square, 40 centimeters tall, and weigh over 140 kilograms not very big, but really heavy! They can move at up to eight kilometers per hour and lift boxes weighing over 300 kilograms, so they are very fast and strong

 

Cleaning robots

Robots are no longer only for businesses. Since the early 2000s, they have been in people's homes. One of these such robots is really small a flat disc used to clean the floor. It is only nine centimeters tall, and this robot is very light at just under four kilograms. It travels at around a kilometer an hour, so it's not very fast. It can go for two hours without stopping to recharge. Having a clean floor is so easy now, thanks to this robot - it's perfect for people who are too busy to clean

 

Kinetic Energy

Kinetic energy is movement. movernent from wa-ter and wind to get kinetic energy. This makes electricity Wind Turbines A wind turbine gets energy from the wind and makes electricity

Wind turbines are tall and they have blades which are 20 meters lorg. Wind turns the blades which spin a shaft

The shaft turns a generator which makes electricity. A wind farm is a group of Wird turbines. Wpnd farms make a lot of electricity

Hydropower

We can also use water to get energy. This is called dropoaer. Hydro means water We get hydropower when water from a dam turns a turbine. A dam is a big wall that stops water. There are doors in the dam so the water can get out. The water comes out of the dam and the energy from the water spins turbines. The turbines spin generators which make electricity

 

Changing the Water Cyde in the Desert

Many people have had ideas to try and change the water cycle in the Arabian Desert. One idea is to bring an iceberg, a huge piece of ice that floats in the ocean, from Antarctica to the coast of the Arabian Peninsula

The idea is that water will evaporate from the top of the iceberg and rise into the air. This water would become water vapor. The water vapor will condense over the Arabian Peninsula. The condensation will thicken and form clouds. The precipitation falling frorn the clouds back to Earth would bring rain to the region. This could possibly turn parts of the desert into a green countryside

 

READING

I the first of the emai Noora's Mote to dd Nwa go on hoy HeJo I so tqy to tur you! ThM1k you for sendng pictures frorn y-ur
to Oman. tt you had a wonrful time. I cant tww esy it is to travel using transwtation ike airplanes

even to places like North Arneriæ and Ash Bhen I was your age, only a few went on to different I my first time traveling to a ifferent country. My farny ard I to visit Manama, in æhrain. traveled on a chow, which was how we to travel by The ship sailed from the Dubai Crek

Dhaid then, so we to take a all the way there. Tcday, that is a drive. bæk theri it tmk several turs. The stm built, so it tæk to travel

It tæk tte thys to ed to Manarna It hard for to that I can sit on a plane and in Manama in one tur. Of couræ, it was hard for my granarents to start using cars. When they  younge everyone by carnel caravan or on fmt. It tmk a mg tirrp

 

 Use information in the text to the tables

Traveling through time

The way we travel has changed a lot over the last years. Before the 1960s, many grople traveled to countries by ship. This was the easiest and cheapest way to travel. However, this changed very fast when made faster airplanes. Today, we are usually only a few hours flight away from anywhere, so you can save a lot of tirne

In 1950s, if you wanted to travel to New York from London by ship, it took 3 days and 12 hours. That was on fastest ship. Now, if you want to travel the same route it only takes atmt 8 hours to fly between the two To to Sydney, Australia it even longer. In 1950, it took 28 days to travel by ship. Now, it takes only 2? 5 hours by airplane In the future. new travel technology might surprise some This is travel timewill less and less

 

What is a food chain

A chain is a way to show the relationships different animals in the same environment. In a chain, some animals eat other anirnals and some animals eat plants. A chain has different levels. These are levels. The graph shows the trophic kvels in a pyrarnid. Anirnals on eKh srt of pyramid are eaten by animals next of the pyramid

Finally, top carnivores are animals in the last trophic level. These are animals without natural So, animals do not eat them. However, em animals from all other levels. One example of a is a lim

Third, sondary consumers are animals who can or omnivores. Carnivores mly eat meat. Omnivores can eat both plants and meat. An example of an omnivore is a bear. However, secorOy consumers also have Other carnivores sometirnes em them. In the UAE. the desert fox is a sondary consumer

First. that make their own are calli They are plants that animals consume. In the UAE desert, the date palm 
 

شارك الملف

آخر الملفات المضافة