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起止时间:2020-02-25到2020-06-02
更新状态:已完结
Unit 1 Tree identification Test for unit 1
1、 The shape and form of the bark differ not only in the variety of trees but also in age. In other words, the bark on young trees may appear distinctively from that on more ____ trees.
答案: mature
2、 The ____ flower lacks either functional stamens or pistils,while the perfect flower contains actively functioning parts of both sexes.
答案: imperfect
3、 The unisexual flowers usually occur in the ginkgo,where the male and ____ parts may grow on separate trees.
答案: female
4、 As one of the primary form of dry fruits, the most difference between dehiscent fruits and ____ fruits is that the former will split open when ripe and are usually many-seeded.
答案: indehiscent
5、 Cherry and plum can be classified as ____ fruits. In opposite to dry fruits, their seeds are commonly surrounded by edible and full pulp or pericarp.
答案: fleshy
6、 ____ fruits, including aggregate and multiple, are developed from multiple pistils, which differ from the single fruits in many areas.
答案: Compound
7、 The same prefix of the following underlined words is _. The meaning of it is _.A few conifers are dioecious: The male and female reproductive parts are on separate trees.Studying the light in each image could also reveal physical characteristics, such as the presence of water or carbon dioxide.
答案: di
two
8、 The same prefix of the following underlined words is _. The meaning of it is _.Trees are classified into groups primarily by their fruits and flowers, but the leaves and twigs are usually more accessible for identification. When the chairman of Campbell’s retired, McGovern was named as his successor.
答案: cess
go
move
9、 The same prefix of the following underlined words is _. The meaning of it is _.Twigs are useful in identifying trees except for a short period during the spring when the buds are opening and shoots are elongating on these small branches. The fall in inflation is the silver lining of the prolonged recession.
答案: long
long
10、 The same prefix of the following underlined words is _. The meaning of it is _.Dehiscent fruits are usually many-seeded and are enclosed in a covering that splits when the fruit is ripe, such as the redbud, magnolia, and rhododendron. The new students only stand aside while their parents are busy helping them enroll.
答案: en
put into
11、 The system or pattern of the veins in a leaf is ____.
答案: venation
12、 A soft white substance that fills the stems of some plants is ____.
答案: pith
13、 A tree that takes a long time to grow and that produces strong heavy wood is called as ____.
答案: hardwood
14、 The male reproductive organ of a flower refers to ____.
答案: stamen
15、 The female seed-producing part of a flower is ___.
答案: pistil
16、 The act of causing (a flower or plant) to be able to produce seeds by adding or bringing pollen is ____.
答案: pollination
17、 Any type of fruit with a hard stone surrounded by juicy flesh is ____.
答案: drupe
18、 The fruit produced by trees like apples and pears is ____.
答案: pome
19、 A tree that has needle-shaped leaves which it does not normally lose in winter, and produces brown cones that contain its seeds is ____.
答案: conifer
20、 When some flowering plants have the male and female reproductive organs in separate flowers on the same plant, they are ___.
答案: monoecious
21、 When some plants have the male and female reproductive organs in separate flowers on separate plants, they are ____.
答案: dioecious
Unit 2 Forest ecology test for unit 2
1、 when we describe something as living or growing in, on, or near the water. it is____.
A:transpiration
B:aquatic
C:resistance
D:infiltration
答案: aquatic
2、 The study of the relationship between the geochemistry of a region and the animal and plant life in that region. it refers to ____.
A:transpiration
B:resistance
C:compensation point
D:biogeochemistry
答案: biogeochemistry
3、 The act of process to (a liquid, for example) permeate a substance by passing through its interstices or pores.
A:transpiration
B:aquatic
C:resistance
D:infiltration
答案: infiltration
4、 A force that tends to oppose or retard motion.
A:transpiration
B:aquatic
C:resistance
D:infiltration
答案: resistance
5、 The amount of light intensity on the light curve where the rate of photosynthesis exactly matches the rate of respiration.
A:resistance
B:compensation point
C:infiltration
D:biogeochemistry
答案: compensation point
6、 The process to give off water (containing waste products) through the pores of the skin or the stomata of plant tissue.
A:transpiration
B:resistance
C:infiltration
D:biogeochemistry
答案: transpiration
7、 ____ are always found growing in water or in extremely wet areas and showing certain adaptations to such habitats.
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