1、课时分层作业(十八)语言知识练习固基础.单句语法填空1I am wondering if/whether you could tell me more about this activity.2This is the shop where we have just been treated badly.3Getting your students involved(involve) in classroom activities is very important.4The nonprofit organization has set up more than 30 branches all
2、over the world.5The visit was aimed to_develop(develop) relations between the two countries.6They are not coming this morning.Lets not waste time waiting(wait) for them.7Pandas feed on bamboo，which can also be used for a building material.8She is late for class again and she is supposed to_say(say)
3、sorry to the teacher.9We Chinese stand for peace and wish to settle all disputes by peaceful means.10All her energy is_focused(focus) on her children and she seems to have little time for anything else.单句改错(每小题仅有1处错误)1There is a wonder that he remains alive after that accident.ThereIt2All those conc
4、erning about the poor children should be thanked.concerningconcerned3She lay the baby on the bed and went to prepare lunch.laylaid4I hope our government can pass a policy aiming at reducing waste.aimingaimed5There are more than 100 foreign students in our college，some of whom from Africa.whomthem或wh
5、om后加are高考题型练习提能力.阅读理解ALiving in the wild can be hard.Finding food and staying safe arent easy.Each day，animals struggle to survive in their habitats. Not all animals get by on their own.Some animals form a close partnership with other kinds of animals.These pairings are called symbiotic (共生的) relati
6、onships.In a symbiotic relationship，the animals depend on each other.One animal helps the other meet its needs.Sounds good，right？Not always.Some animals are not very kind to their partners. In some cases，one animal meets its needs but hurts its partner.Take ticks (壁虱)，for example. These insects suck
7、 blood to live. To get blood，they attach themselves to other kinds of animals.Ticks can pass germs that cause disease instead of helping their hosts.In other relationships，animals dont treat their partners so poorly.Both animals benefit，or get help，from living with the other animal.Small animals cal
8、led cleaner shrimps have found a way of helping fish at coral reefs. As their name suggests，the shrimps clean the fish.They hang out at what scientists call a cleaning station.A fish stops by.Then a shrimp climbs onto the fish and even steps into the fishs mouth.The shrimp uses its tiny claws to pic
9、k stuff off the fishs body. That can include dead skin，tiny pieces of food，and wee creatures that can hurt the fish. The fish gets a nice cleaning. The shrimp enjoys a tasty meal of fish trash.Small birds called plovers are also in the cleaning business. They have big customers，crocodiles. Crocodile
10、s have long snouts (口鼻部) filled with sharp teeth.Cleaning them is tricky. When a crocodile opens its mouth，the plover hops right in.The crocodile does not snap its snout shut.Instead，it lets the plover eat small, harmful animals attached to its teeth.The plover gets an easy meal while the crocodile
11、gets clean teeth.【语篇解读】本文介绍了共生环境中动物的生活习性。1The text is mainly about _Athe hard life in the wildBsome dangerous animalsCanimals living togetherDanimals in a symbiotic relationshipD主旨大意题。本文主要介绍了生物界的一种共生现象，也就是说生物之间相互依存、相互帮助。故答案选D项。选项C表达语意不准确，表达范围太广。2According to the text，in a symbiotic relationship，_Aan
12、imals depend on each otherBbirds depend on animals for foodCboth sides can get helpDnot all animals treat their partners wellD推理判断题。由文章第二、三、四段可知，在有共生现象的动物中，有的是相互得到帮助，而有的是单方面的。故答案为D项。3When plovers hop into crocodiles mouths， they _Aare really to clean crocodiles teethBare to make crocodiles happyCare
13、nt afraid of being eatenDarent happy to clean the crocodiles teethC细节理解题。由文章最后一段可知，plovers是不担心被鳄鱼咬伤的，因为鳄鱼是希望plovers这样做的，而对于plovers而言，其真正的目的是为了得到自己的食物。故答案为C项。4According to the text，it can be inferred that _Aliving in the wild can be hardBdifferent animals have different living waysCcrocodiles mainly
14、live on ploversDticks are useful to some animalsB推理判断题。文章第一段就提到有些动物是靠自己去捕捉食物，而文章又举例讲了一些动物是靠共生来获取食物的，也就是说不同的动物有不同的方式来生存，所以答案为B项。选项A是文章直接叙述的；选项C表达与原文不一致；选项D是无法推断出的。BAnimals can move from place to place，but plants cannot.When an animal is under attack，it can run away or fight back.Plants certainly cann
15、ot run away，and they lack teeth and claws.But plants can defend themselves by using both physical and chemical means.Some plants have their own ways to keep animals away.For example，the leaves of the holly plant have sharp spines(刺) that discourage grasseating animals.Holly leaves on lower branches
16、have more spines than leaves on upper branches.This is because the lower leaves are easier for most animals to reach.Some plants，such as the oak tree，have thick and hard leaves that are difficult for animals to eat.Some grasses may contain a sandy material；eating such grasses wears down the animals
17、teeth.Many plants also have chemical defenses，some plants produce chemicals that taste bitter or cause an unpleasant reaction.Some plants may fight against an attack by increasing the production of these chemicals.When a caterpillar(毛虫)bites a tobacco leaf，the leaf produces a chemical messenger.This
18、 messenger sends to the roots the information to produce more nicotine.The higher levels of nicotine discourage the caterpillar.Many plants depend on both physical and chemical defenses.A certain plant in China，for instance，has prickly (多刺的) leaves，and each prickle contains poisonous venom (毒液)A sin
19、gle experience with this kind of plant will teach an animal to stay away from it in the future.【语篇解读】本文主要介绍了植物的一些防御外敌侵犯的方法。5The holly plant has more spines on the lower leaves because most animals _Aare not tall enoughBlike the lower leaves onlyCare not clever enoughDcan get the lower leaves easilyD
20、细节理解题。文章第二段介绍，冬青植物底部的叶子刺更多是一种自我保护手段，因为底部的叶子容易被动物吃掉。6To defend themselves，oak trees use _Achemical meansBphysical meansCbitter chemicals Dsandy materialsB细节理解题。由文章第三段可知，橡树是采取“物理”手段保护自己。7How does tobacco protect itself against an attack from a caterpillar?AIts leaves fight against the attack by physic
21、al means.BIts roots send a messenger to discourage the caterpillar.CIts roots increase the production of nicotine when it is attacked.DIts leaves produce poisonous sand to drive the caterpillar away.C细节理解题。文章倒数第二段介绍，当“烟草”受到毛虫袭击的时候，它会传送信息到根部，增加“尼古丁”的含量。8What would be the best title for this passage?A
22、Plants and AnimalsBHow Plants Defend ThemselvesCAttacks and DefensesDHow Animals Eat Plant LeavesB标题概括题。从文章介绍的“植物受到动物攻击时采取自我保护或防御手段”可得出答案。.短文改错My parents and I went to the park on last Sunday.There were lots of visitors stood in front of the ticket window.We waited for a long time and buy three tick
23、ets.In the Tiger Mountain of the park, I was too eager to see the frightened animals that I quickened my steps through the crowd.Unfortunate，I got separated from my parents. I had hard time looking for him，but I had no luck.Wandering in the park，I felt alone without any companions.Worse still，I had
24、no money，so I had to walk home，covered as much as 5 kilometers.【答案】My parents and I went to the park on last Sunday.There were lots of visitors in front of the ticket window.We waited for a long time and three tickets.In the Tiger Mountain of the park, I was tooso eager to see the animals that I quickened my steps through the crowd. ，I got separated from my parents. I had hard time looking for ，but I had no luck.Wandering in the park，I felta without any companions.Worse still，I had no money，so I had to walk home， as much as 5 kilometers. 【导学号：71812084】