Notes, summaries, assignments, exams, and problems for Primary education

Present Perfect and Past Simple Exercises

1. Did you see the Bruce Lee film on TV last night? No, but I have seen all his films on video already this year.
2. I have lived in Germany for five years now. I moved here in 1989. I lived in Portugal for a time, but I am living in Rome now.
3. How long have you been learning Italian? I started learning the language when I was 12.
4. I have lost my sunglasses. Have you seen them?
5. My father worked in this shop for twelve years. Then he got a job in a bank.

Past Simple and Past Continuous Practice

1. Bruce paid the bill while Mary was putting her coat on.
2. When she was washing her skirt, she found a pound in the pocket.
3. It was so hot yesterday that we decided to go to the beach. We were putting everything in the car when my

Understanding Costing and Cost Accounting

Costing refers to the technique and process of ascertaining costs. The technique consists of the principles and rules for determining the cost of products and services. The process of costing is the day-to-day routine of ascertaining costs. Cost accounting, on the other hand, is defined as the process of accounting for cost from the point at which expenditure is incurred or committed.

Objectives of Cost Accounting

• Ascertainment of cost: This is the primary objective of cost accounting. Different techniques and systems of costing are used under various circumstances.
• Control of cost: Cost control aims at improving efficiency by monitoring and reducing expenses. This objective is becoming increasingly important

Sustainable Cities

Today, more than half of humanity lives in cities, and this figure is expected to rise to 6 billion by 2050. This requires a rethink of urban planning and management, as rapid urbanization puts unprecedented pressure on the environment and public health. Sustainable cities must be environmentally, economically, socially, and politically healthy, both for the current population and for future generations. These cities are based on four pillars of sustainability:

• Environmental: concerns the ecological footprint, resource consumption, and pollution.
• Economic: concerns job opportunities and attracting investment.
• Social: focuses on quality of life, public health, and social integration.
• Institutional: includes democratic participation

Active Transport

Active transport moves substances across membranes from lower to higher concentration, against the concentration gradient. This process requires cellular energy (ATP) and a carrier protein.

The substance binds to the carrier protein's receptor site on one side of the membrane. ATP changes the protein's shape, releasing the substance on the other side. Active transport occurs only in living, respiring cells.

Factors influencing active transport:

• ATP Production: Increased ATP production increases active transport rate.
• Temperature and Oxygen: These affect respiration and ATP production, thus impacting transport rate.
• Mitochondria: Cells with more mitochondria have higher transport rates due to increased ATP production.
• Poisons: Respiratory

Grasslands

In general terms, a grassland ecosystem is characterized by huge open lands where the vegetation includes different types of grasses with very few trees. There are six main types: tropical grasslands, temperate grasslands, flooded grasslands, tundra grasslands, montane grasslands, and xeric grasslands. Tropical grasslands receive 50-130 cm of rainfall, while temperate grasslands receive 25-75 cm.

Key Characteristics of Grasslands

• Limited annual rainfall
• Dry climate
• Lack of nutrients in the soil
• Frequent droughts and uncertain precipitation
• Frequent forest fires due to semi-arid climate and flash lightning
• Poor vegetation dominated by grasses
• Home to a variety of animal species

Deserts

Most hot deserts occur in high air pressure areas where... Continue reading "Major Ecosystems and Environmental Concepts" »

Nervous and Endocrine Systems

The nervous system receives external and internal stimuli, interprets them, and decides an appropriate response. The response is executed by the effector organ or tissue. Nervous tissue is made up of cells called neurons.

Stimulus → Nervous System → Effectors → Muscles, Glands

Neuron Structure

• Cell body: The central part of the neuron.
• Dendrites: Extensions of the cell body. They receive the nerve impulse and transmit it to the cell body.
• Axon: A long fiber extending from the cell body. It transmits the nerve impulse to other neurons or effector cells.
• Myelin sheath: This layer protects the axon and increases the speed of the nerve impulse.
• Axon terminals: These are located at the end of the axon. They contain neurotransmitters,

Travel and Tourism Organizations

The travel and tourism industry includes a variety of organizations. Travel organizations include airlines, train companies, and cruise operators. Tourism organizations encompass a broader range, including travel agents, tour operators, accommodation providers, food and drink providers, visitor attractions, and ancillary service providers.

Travel Agents

Travel agents sell the products and services that other tourism organizations provide, including ancillary services. A travel agent can be a physical retail shop, an online business using websites or social media, or a specialist in one type of tourism, such as business travel or independent travel.

Tour Operators

Tour operators organize travel and tourism packages... Continue reading "Key Players in the Travel and Tourism Industry" »

Reading Comprehension Answers

Part 1: Multiple Choice

1. b
2. a
3. c
4. a
5. b

Part 2: Short Answers

1. hundreds of accountants
2. call prospective customers
3. call companies that will be interested in your services
4. be an effective way to promote your business
5. can help you manage it

Vocabulary Exercise Keys

Part 1: Business Terminology

1. renovations
2. competitors
3. deductions
4. specialises (or specializes)
5. wastes
6. shareholders
7. regrets
8. tests

Part 2: Matching and Financial Terms

Matching (1-5)

1. c
2. d
3. e
4. b
5. a

Key Business Concepts (1-5)

1. accrued expenses
2. share capital
3. focus group
4. net worth
5. marketing strategy

Part 3: Fill-in-the-Blanks

1. creditors
2. tax
3. liabilities
4. call
5. increased
6. figures
7. profit

Part 4: Selection

The correct items are: 1, 4, 7, 8.

Part 5: Phrases and Dialogue Completion

1. brand, I don’t mind
2. demand, promotion
3. gone out

Functions of a Financial Market

• Connecting Buyers and Sellers: Facilitates the meeting of buyers and sellers of financial assets without needing a physical location.
• Issuance and Exchange of Assets: Supports the creation (primary markets) and subsequent trading (secondary markets) of financial assets.
• Price Determination: Establishes the prices of financial assets through various pricing mechanisms, such as supply and demand or predetermined conditions.
• Public Information: Disseminates information about asset prices, trading mechanisms, and pricing systems.
• Providing Liquidity: Ensures that assets can be easily converted into cash without significant loss of value.
• Reducing Transaction Costs: Lowers the costs related to finding counterparts and determining