Unit5AdelicateworldPeriod2Usinglanguage練習(xí)（原卷版）

1、Unit 5A delicate worldPeriod 2 Using language（練習(xí)原卷版）I:單詞拼寫In her first book she explained the role of vegetable fibers, vitamins, minerals, and other essential （營養(yǎng)物）.Warm the sugar slightly first to make it（溶解）quicker.If you describe someone as a book（蟲子）,you mean they are very fond of reading.They（

2、授粉）the flower and help seeds develop better.The girl student did not return home instead of attending the summer（期 I可）of college.Protect and restore wetlands, which are an important part of grassland（生態(tài)）.In（比擬）with the previous study, the new study expanded research subjects.Test results indicate th

3、at a （分解體）can remarkably improve the quality of this new material.They strongly demand that you（補(bǔ)償）for the loss.It is a very pretty butterfly, with a pair of colourful（翅膀）.II：單句語法填空Both sides consider desirable to further the understanding between the two peoples.Due to too much work to do, T*ll lea

4、ve it up to you（use） your discretion.I think it breakthrough to transform a desert into a forest or a wide stretch of grassland.（absorb） in their game, these children did not feel hungry at all.Don*t rely on（go） abroad for our holiday, for we may not be able to afford it.They cannot be relied on( of

5、fer) much support or useful advice.The dissolved chemicals are released back into the food chain(use) by producers.Secondary consumers prey on primary consumers, as well as(eat) other animal matter.In just a journey(collect) pollen and nectar, one single honey bee can pollinate as many as 50 to 100

6、flowers.Both patterns tend to exist because they(feed) on each other.選詞組并用其適當(dāng)?shù)男问教羁?。be native tofeed onabsorb. frombreak downa combination ofin existencepray ontransform. intocheck outtake inAccording to a study, butterflies a sweet liquid produced by flowers.It is common knowledge that humans oxygen

7、 and breathe out carbon dioxide.The worms ability to break down their everyday food also allows them to plastic.The rule says that guests should of their rooms by noon if they dont pay foraccommodation.The lions in this area deer and other wild animals for food.The red-eared slider, a species of fre

8、shwater turtle,Central Aernal and external factors caused the company to close down.The ancient china is thought to be the only one in the province.If we use this new way to boil meat, minerals animal foods more easily.During the holiday season, the town a Christmas wonderland.七選五：從短文后的選項(xiàng)中

9、選出可以填入空白處的最正確選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。China has made great improvements in environmental protection during the past seven years A Each species （物種）on Earth has a role to play in the ecosystem.In recent decades, a series of wildlife-protection movements have been carried out by the central government. 2. The g

10、iant panda and the crested ibis are among these success stories.The giant panda used to have a population of 1114 in the 1970s. It now totals 1864 thanks to 52 protection areas. 3 By the end of last year, seven of the nine pandas released had survived in the wild.4. In 1981, only seven crested ibise

11、s were found in Yangxian county, Shaanxi Province.Since then, breeding programs have helped the population reach 2000. China has even sent crested ibises to Japan and South Korea in recent years, to help with the species survival.5 Key projects will be continually carried out to improve protection,

12、including making the lists of wild animals and plants under State protection, and also fighting against illegal wildlife trade, which includes ivory （象牙）.As environmental damage has increased, signs of change have appeared around the world.Another species was once thought to be extinct.Scientists ha

13、ve worked to feed pandas and then release them into the wild.People call for immediate protection of the remaining species.Several species in danger of extinction have made impressive progress thanks to the methods.China will continue its efforts of the wildlife protection.Protecting wildlife is, wi

14、thout doubt, an important part.V:閱讀理解。閱讀下面短文，從短文后各題所給的A、B、C和D四個(gè)選項(xiàng)中，選出可以填入空白 處的最正確選。One kind of female butterfly mates only once in its life - and then closes its wings to avoid harassment when pursued by persistent and unwanted males, a Japanese researcher said.Observations of the Small Copper Butte

15、rfly, a colourful orange and black butterfly, showed that some females closed their wings when males flew by, but only when they were males of their own species, said Jun-Ya Ide, an associate professor at Kurume Institute of Technology in Fukuoka, western Japan.When we looked into why, the males wer

16、e courting the females. They do this very stubbornly, so the females sometimes try to get away or prefer to stay unobserved/ he added.Ide and his colleagues brought a model of a male butterfly near the females to test their reactions and found that young females that had yet to mate kept their wings

17、 open, but those that had already mated closed them.Not only can the persistent attentions of unwanted suitors harm the delicate females, fleeing from them with the male often in pursuit uses up strength and can even shorten their lives, he added. Closing their wings makes them less visible, helping

18、 them avoid communication with their own species. We figured they were trying to avoid harassment by males/ Ide said.What does the word “harassment mean in the paragraph?A. attackB. embarrassment C. sexual invasion D. threatWhy some females closed their wings when males flew by?A. because they close

19、 their wings to avoid harassment when pursued by persistent and unwanted males.B because the female butterfly mates only once in its life.because they dont like the male butterfly at all.because they are afraid of the male butterfly.According the the passage, which is correct?A. The females closed t

20、heir wings when males flew by.B Only the model of a male butterfly can make the young female butterflies to keep their wings open.C The female butterfly mates only once in its lifeD. Not only can the persistent attentions of wanted suitors harm the delicate females, fleeing from them with the male o

21、ften in pursuit - uses up strength and can even shorten their lives.VI.語篇填空The red-eared slider, a species of freshwater turtle, is native 1 the Southern United Statesand Northern Mexico. Due to its cute appearance, many people think 2(keep) this turtle as a petis a good idea. Recent years have seen more and more pet sliders escaping or 3(release) fromhomes, and some owners be