.
2. Back home, in England, Darwin realized that differences in habitat could lead to different species
in birds as well as in plants.
3. As a result of Darwin and Mendel’s research, scientists of the nineteenth century formed the
belief that that influence of the environment was behind the development of new species.
4. It would take a next generation of scientists to bring the importance of the environment on species
back in view.
Step 4 Writing
Different habitat, different dandelions
As shown in the picture, dandelions take on different appearances in different habitats. The first
picture shows a hot, dry habitat, in which the dandelion grows low, with thin, yellowish flowers and
narrow light green leaves; while the second one shows a wet and cool habitat, in which the
dandelion is taller with rich but bright yellow flowers and broader leaves. So we can reach a
conclusion like this: plants change their appearance and adapt to the new environment if moved from
one habitat to another.
Homework
Make some observations of the plants somewhere in the wild areas as required in the textbook, but
make sure you are in a safe distance. Make notes of your impressions of the plants. For this task,
you can work in groups or pairs in a corporative way, and you must think of ways to describe what
you have seen or done.
Period 6 Grammar
Teaching aims:
1. Review what can be used as the object.
2. Review some important rules about the object.
Teaching important points:
1. Master the v.-ing form and the infinitive used as the object.
2. Master the compound object and “it” used as the formal object.
Teaching difficult point:
How to master the differences between v.-ing form and the infinitive used as object.
Teaching method:
Review. Explanation and inductive methods.
Teaching aids: A computer and a courseware
Teaching procedures:
Step 1 Revision
Joseph Banks was born into a wealthy family, and he could have led a life of privilege, but from an
early age, he had an appetite for knowledge, he wanted to make a career in science, he chose to
pursue his passion to the full, so he devoted his money to the career, he took pain and effort to join
the exploration, collecting every possible information about plants, he helped to develop the royal
gardens into one of the greatest botanical gardens in the world, etc. He really contributed a lot to the
science of botany. His devotion, his pursue for knowledge, his sacrifice will forever encourage us to
embrace greater dream, to study and work hard to make our country richer, stronger and more
beautiful.
Step 2 Tell what is used as the Object.
Born in 1743, Joseph Banks played an important role in botanical research in the eighteenth century.
(2) Even before going to Oxford in 1760, Banks showed an appetite for knowledge.
As a member of the Royal Society, the 25-year-old Banks paid 10,000 pounds for the equipment of the expedition.
(4) The Royal Society gave him the opportunity he had been waiting for.
Do you know who else joined Banks on the expedition with Captain Cook in 1768?
(6) In 1772 he went on an expedition with a fellow student.
He asked explorers to send him new plant species from around the world, which he included in the
collection at Kew Garden.
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