‘It’s been a revelation’: how heat pumps can cool your home as temperatures soar
Listen to Course
0:00
0:00
Recommended Courses
Learner Reviews
Write a review
EN: The conjunction 'as' is used here to mean 'while' or 'at the same time that', showing two actions occurring simultaneously.
As summer approaches, the days become longer.
EN: The present perfect tense ('have discovered') is used to describe an action that happened at an unspecified time in the past and has relevance to the present.
Scientists have discovered a new species of frog in the rainforest.
EN: Historically, residential air conditioning has been uncommon in the United Kingdom due to its temperate maritime climate. However, with rising global temperatures and more frequent summer heatwaves, UK homeowners are increasingly seeking practical ways to cool their residences.
EN: Non-defining relative clauses are introduced by a comma and 'which' to add extra information about a noun. They can be omitted without changing the main meaning of the sentence.
My laptop, which I bought last year, works very well.
EN: The phrase 'be known for' means to be famous or recognized for a particular feature or achievement. It is followed by a noun or a gerund (verb+ing).
Taiwan is known for its delicious street food.
EN: The structure 'be surprised to learn that...' uses a passive adjective followed by an infinitive verb to express the emotional reaction to acquiring new information. The 'that-clause' then specifies what was learned.
I was delighted to learn that my application was accepted.
EN: The Present Perfect Passive ('have been surprised') is used to describe a state or action that began in the past and continues to be relevant in the present, emphasizing the ongoing reaction of people.
Many customers have been pleased to find that the new policy saves them money.
EN: A non-defining relative clause (introduced by 'who') provides extra, non-essential information about a specific person. It is separated from the main clause by commas.
My brother, who works in London, is visiting us this weekend.
EN: The present perfect tense ('has experienced') is used to describe an action that happened at an unspecified time in the past and has relevance or a connection to the present situation.
She has lived in Paris for three years and knows the city very well.
EN: The reported speech structure 'say that...' is used to state information spoken by someone. 'That' acts as a conjunction introducing the noun clause that functions as the direct object of the verb 'says'.
She says that she will call us tomorrow.
EN: The phrasal verb 'bring [something] down to [a number/level]' means to reduce or lower something to a specific amount or level.
The new manager hopes to bring the production costs down to ten dollars per unit.
EN: In the UK, traditional homes are built to retain heat, and air conditioning is historically rare in residential properties. As climate change causes more frequent summer heatwaves, the dual heating/cooling capability of heat pumps is becoming a major selling point for British homeowners.
EN: 'After' is used here as a subordinating conjunction to introduce a time clause ('after they removed...'). It shows that the action in the main clause happened following the action in the dependent clause.
She went to bed after she finished her homework.
EN: The Simple Past Tense ('installed', 'removed') is used to describe completed actions that took place at a specific time in the past.
They bought a new car last month.
EN: In the UK, traditional home heating relies heavily on gas boilers. As part of net-zero carbon initiatives and in response to rising temperatures, the UK government has been encouraging households to replace gas boilers with air source heat pumps.
EN: A relative clause (or adjective clause) uses a relative pronoun like 'that' or 'which' to give more information about a noun. Here, 'that installed the system' describes 'The company'.
The engineer that repaired our heating system was very professional.
EN: The verb 'suggest' can be followed by a 'that'-clause (where 'that' is often omitted) expressing a proposal or recommendation. In reported speech or past context, modal verbs like 'could' are used to indicate possibility or ability.
My doctor suggested I could try swimming to reduce my back pain.
EN: The preposition 'by' followed by a gerund (-ing form) is used to explain the method or means by which an action is accomplished.
You can improve your English by reading news articles every day.
EN: The phrase 'rather than' is used to show contrast or preference, meaning 'instead of'. When followed by a verb, it usually takes the -ing form (gerund) to match the parallel structure in the sentence.
He decided to walk to work rather than taking the bus.
EN: Compound Predicate with Parallel Verbs: When a subject performs two actions joined by a conjunction like 'and', both verbs should be in the same tense and form (here, simple present 'extracts' and 'sends').
In summer, the machine absorbs heat from inside and releases it outside.
EN: Preposition 'through' for Means or Channels: The preposition 'through' is used to indicate the medium, system, or mechanism by which something is conveyed or transmitted.
Fresh air circulates through the ventilation shafts.
EN: Passive Voice (be + past participle) is used when the focus is on the action or the receiver of the action rather than the doer. Here, 'is reversed' and 'is removed' emphasize what happens to the process and heat.
The trash is collected every morning.
EN: Prepositional phrases of place, such as 'from inside the house', combine prepositions ('from' and 'inside') to show movement away from a specific location.
She took a cold drink from inside the fridge.
EN: The structure 'make + object + object complement' uses 'make' as a causative-like verb, where the object complement (a noun phrase or adjective) describes the resulting state of the object.
The heavy rain made the dirt road a muddy track.
EN: The subordinating conjunction 'because' introduces an adverbial clause of cause/reason, followed by a complete subject-verb clause.
She stayed at home because it was snowing heavily.
EN: The pattern 'describe A as B' is used to express how someone characterizes or views something. 'Describe' is the verb, 'A' is the object being described, and 'as' introduces the noun or adjective phrase 'B' that specifies the characterization.
She described the new policy as a major step forward.
EN: The Present Perfect Tense ('has/have + past participle') is used to connect a past action or experience with the present moment. Here, 'has described' indicates that Ingram made this comment recently, and its relevance continues to be important now.
The doctor has described the treatment as highly effective.
EN: In the UK, traditional housing rarely features central air conditioning because summers have historically been mild. However, with rising global temperatures causing intense heatwaves, British homeowners are turning to technologies like heat pumps—originally installed for winter heating—to keep cool, leading many to view these dual-function systems as life-saving 'lifelines'.
EN: A complex sentence with an indirect speech reported clause introduced by 'that', containing a time clause ('when...') followed by two main coordinated actions ('turn... and then let...').
She explained that when the rain stops, we can go outside and enjoy the fresh air.
EN: The structure 'let + object + bare infinitive (verb without 'to')' is used to express allowing or permitting something to happen.
Please let the soup cool down before you drink it.
EN: The conjunction 'when' introduces an adverbial clause of time, showing two events happening at or around the same time.
When she arrives at the station, she will call you.
EN: The present continuous tense ('is using') can be used inside an object clause to represent an action believed to be happening at that moment.
Many customers think the store is opening early today.
EN: In the UK, traditional air conditioning units are historically rare in residential homes due to the mild climate. As summer temperatures rise, air-source heat pumps that offer reverse cooling are perceived by many as equivalent to traditional air conditioning, though their operating principles differ.
EN: The transition word 'however' is used at the beginning of a sentence to introduce a contrast to a previous statement or situation.
She was tired; however, she continued working on her project.
EN: In a noun clause introduced by 'that', a participle phrase ('working in reverse') can be used as a post-modifier to describe the preceding noun ('heat pump').
I saw a car moving in reverse down the street.
EN: Heat pumps have traditionally been viewed in the UK primarily as replacements for gas boilers for winter heating. Using them for space cooling in summer is a relatively new concept for many British homeowners.
EN: The conjunction 'as' is used here to mean 'while' or 'in proportion to the time that', indicating two actions or processes happening simultaneously.
As technology advances, electric cars are becoming more affordable.
EN: 'Both... and...' is a correlative conjunction used to join two equal grammatical elements (in this case, two gerunds: 'heating' and 'cooling').
This venue is suitable for both weddings and corporate events.
EN: Traditionally, homes in temperate countries like the UK rarely had air conditioning because hot summers were brief. However, due to recent extreme summer temperatures driven by global climate change, technologies like heat pumps are gaining popularity as double-duty systems for both winter warmth and summer cooling.
EN: The present perfect tense ('has been') with 'for + duration' is used to describe an action or state that started in the past and continues into the present.
This model has been popular for three years.
EN: 'Because of' is a prepositional phrase meaning 'due to' or 'as a result of', followed by a noun or noun phrase.
The match was canceled because of heavy rain.
EN: The phrase 'play a role in + V-ing' means to be involved in an activity or to contribute to a result. Adjectives like 'significant' or 'important' can be added before 'role' to show the degree of impact.
Technology plays a crucial role in improving modern education.
EN: The conjunction 'while' can be followed directly by a present participle (-ing phrase) to indicate two actions happening simultaneously, serving as a shortened adverbial clause (while [they are] also reducing...).
She listens to classical music while studying for her exams.
Key vocabulary words with IPA pronunciation, definitions, example sentences, and interactive quizzes.
Phrases with type tags, bilingual definitions, usage notes, and example sentences.
A device that transfers heat from a cooler area to a warmer area, or vice versa, using mechanical energy.
Energy from a source that is not depleted when used, such as wind or solar power.
To gradually return to a higher level or position over time.
To become noticed or widely recognized by people.
Actions taken to manage the impacts of climate change.