译林版高中英语必修第二册Unit 3 Fit for life Grammar and usage进行时和将来时 课件（共21张）

(共21张PPT)
Future and Progressive
进行时和将来时
Virtual reality uses software to create realistic images and sounds. These images and sounds copy a real environment. Most virtual reality programs use a computer screen or a virtual reality headset. The user looks around and interacts with the virtual environment.
Virtual reality uses software to create realistic images and sounds.
These images and sounds copy a real environment.
The user looks around and interacts with the virtual environment.
Use the simple present to talk about general statements of facts and general truths.
Vanessa is training to be a medical doctor. She is performing a routine medical examination, but she is not examining a human patient. Vanessa is using virtual reality to practice her skills. When people think of virtual reality, they often think first of video games. However, virtual reality is becoming more and more common for training and education purposes. In the medical field, virtual reality is giving new medical professionals the necessary preparation for everything from simple routine exams to complicated lifesaving procedures. Virtual reality is changing the way people learn.
Sara is training to be a medical doctor.
She is performing a routine medical examination.
Virtual reality is becoming more common in education and training.
start
now
later
Use the present progressive for activities that are in progress at the moment of speaking.
1. Virtual reality__________ (offer) many benefits in the classroom.
2. Jackie is in the lab right now. She __________ (use) a new virtual reality program.
3. Technology______________ (change) rapidly these days.
4. I__________ (think) virtual reality is amazing.
5. Miguel ____________ (have) a degree in engineering.
6. He often _______________ (use) virtual reality technology to complete his projects.
7. Vanessa ____________________ (work) at the hospital.
is using
is changing
offers
think
has
uses
works / is working
PRACTICE 1: Complete each sentence with the correct form of the verb.
Miguel graduated last year with a degree in civil engineering. While he was working on his degree, he became interested in the use of virtual technology in engineering. When he completed his degree, he found a job with a new company. The company was experimenting with virtual reality. Miguel finished his first project last month. While he was planning the project, he used virtual reality to view and edit each step. This technology helped him visualize his plans.
Miguel graduated last year.
graduated last year
NOW
Use the simple past for a verb that began and ended at a particular time in the past.
While he was working on his degree, he became interested in virtual reality.
working on degree
became interested in virtual reality
NOW
Use the past progressive for activities that were in progress at a particular time in the past.
While the engineer ______________ (work) on her project, she used virtual reality technology to view her plans.
2. Last week Miguel ___________ (complete) two projects.
3. The students _____________ (wear) their headsets when the power suddenly went out.
4. By 2010, many universities _____________ (offer) courses in virtual reality software.
5. The technology company __________ (open) in 2010.
was working
completed
were wearing
were offering
opened
PRACTICE 2: Complete each sentence with the correct past tense form of the verb.
Will drones deliver your pizza some day It’s possible! In New Zealand, a pizza company has already begun delivering orders by drones. Several companies around the world are going to pursue this method of delivery. Why do they want to do this Drones fly over traffic congestion and traffic lights. When companies begin using delivery drones, they will significantly reduce distance and delivery time. At this time, many countries won’t allow drones to deliver food, but this is probably going to change in the near future.
Will and be going to mean the same when they make predictions about the future.
Will drones deliver your pizza some day
or
Are drones going to deliver your pizza some day
This is probably going to change in the near future.
or
This will probably change in the near future.
Be going to is commonly in speaking used to express prior plans.
Professor: What are you going to do for your final project
Student: I’m going to research drone technology.
Use will (not be going to) to express willingness or offer to help. Use will not/won’t to express refusal.
Willingness:
A: What does “unarmed aerial vehicle” mean
B: I’m not sure. I’ll look it up.
Refusal:
Many countries won’t allow drones to deliver food.
Practice 1
Complete each sentence with be going to if you think the speaker is expressing a prior plan. If you think there is no prior plan, use will.
A: I _____________________ (go) a drone show at the Memorial Park at
7:00 tonight. Would you like to join me
B: Sure! I need to run a few errands first, but I __________________ (meet)
you at the park entrance a little before 7:00.
A: I ____________________ (be) up all night tonight. I have a major test in
my statistics class tomorrow, and I’m not prepared at all.
B: I ________________________ (help) you study. I love statistics.
A: Really That’s great! I need a lot of help. I ___________________(study)
at the library all evening. Could you meet me there
B: Sure, I ____________________ (call) you when I get there.
’ll meet
’m going to study
’m going to be
’m going to go
’ll help
’ll call
Drone delivery is an attractive option to hospitals for many reasons. Most hospitals cannot afford to keep every supply available. Medical drones will deliver supplies quickly when a hospital has a specific need for certain supplies. This technology will help emergency medical personnel when it is difficult get from an accident scene to a hospital quickly enough. In the future, as soon as an emergency responder arrives to the scene of an accident, he or she will test the victim’s blood on the spot and send for a drone to bring the correct blood product.
Will drones be delivering your medical supplies soon It’s possible. By the end of this decade, it’s likely that many hospitals around the world will have been adopted this technology.
Tomorrow morning fifteen drones will be leaving the capital of Rwanda. Where are they going The drones usually depart before sunrise, and by dawn they will have delivered blood and critical supplies to hospitals across rural Rwanda. A few lucky hospitals are already using drone technology for medical supplies. In the next year, Rwanda is expanding the technology to include most of its hospitals.
When the meaning of the time clause is future, the simple present tense is used. Will or be going to is not used in the time clause.
Medical drones will deliver supplies quickly when a hospital has a specific need for certain supplies.
As soon as an emergency responder arrives to the scene of an accident, she will test the victim’s blood.
The present progressive may be used to express planned events. The simple present may be used to express future events that are on a definite schedule or timetable.
Planned event:
In the next year, Rwanda is expanding the technology to include most of its hospitals.
Definite schedule:
The drones depart before sunrise.
The future progressive expresses an activity that will be in progress at a time in the future.
Tomorrow morning fifteen drones will be leaving the capital of Rwanda.
drones will be leaving
NOW
The future perfect expresses an activity that will be completed before another time or event in the future.
By the end of this decade, it’s likely that hospitals around the world will have been adopted drone technology.
drone technology adopted around the world
NOW
end of this decade
Practice 2
Choose the correct verbs.
When the drone (arrives / will arrive), it will drop a parachute with supplies.
2. The hospital staff (will be preparing / will have prepared) for the delivery at this time tomorrow.
3. The first delivery (leaves / will have left) at 4:00 tomorrow morning.
4. By the end of the day, the drones (will be making / will have made) over 100 deliveries.
5. The drones (made / are making) 800 deliveries next week.