Unit 8 We're trying to save the earth!单元练习（含解析）

2020-2021学年鲁教版（五四制）英语九年级全册 Unit 8 We're trying to save the earth!单元练习 一、单项选择（下列题目的四个选项中只有一个是符合题意的。） 1．—It's a pity that Mary couldn't _____ the cotton blouse. —Oh，I will try to help her. A．afford B．like C．cost D．spend 2．So homework really makes the students feel tired. A．much B．many C．little D．few 3．I bought a new dictionary and it me 30 yuan. A．paid B．spent C．cost D．took 4．My wife often forgets the door, but she remembered it when she left yesterday. A．to close, closing B．closing, to close C．closing, close D．to close, close 5．—This physics problem is too difficult. Can you show me _____, Wang Li? —Sure. A．what to work it out B．what to work out it C．how to work it out D．how to work out it 6．Congratulations_____ all the winners _____ your excellent grades! A．to；on B．to；for C．on；on D．on；for 7．They made a box _____ old pieces of wood. A．up of B．from C．into D．out of 8．--Many people are wondering _____ in the forest. --It’s reported that a burning cigarette bar caused it. A．when the fire happened B．how was the fire caused C．what cused the fire D．why did the fire happen 9．--Is the woman _____ teacher ? --Yes. She teaches _____ English. A．you, our B．you, us C．your, our D．your, us 10．I _____ watch this TV program. It’s very interesting. A．hardly B．never C．often D．seldom 11．A smile _____ nothing, but gives much. A．costs B．spends C．cost D．spent 12．People_____ wait until the traffic light becomes green. That’s the traffic rule. A．must B．can C．need D．may 13．If the number of the sharks _____, all ocean life will be in danger as well. A．drop too low B．drops too low C．drop too little D．drops too little 14．--Guess what ! Tina makes her own clothes. --Wow, she is so _____. I could never do that. A．energetic B．simple C．creative D．popular 15．He was riding to school _____ he was hit by a car this morning. A．while B．when C．although D．so 二、完型填空 Recently，a reader asked me about the dangers that pets can face around the house．So，I visited my local animal 16 last weekend and got some advice to share about how we can make our homes 17 for our pets． When I arrived，several pets and their 18 were in the waiting room．One man with a cat chatted with me．“My cat will be 19 for an uncomfortable stomach in a minute，”he said．“My children gave 20 a bowl of milk．However，if she is given milk，she will get a stomach ache.” Just then，the vet(兽医) walked over to us．“Yes，Mr．Smith is 21 ．Not many people know this，but milk mustn’t be fed to cats 22 some cats cannot take it in easily，”the vet said.“Other human foods are bad for pets 23 ．For example，if a dog eats chocolate，it will become 24 .” I asked the vet what other hidden 25 there are for pets around the house．“Well，”she replied，“we should not 26 small things，such as batteries or coins，lying around as they can be eaten by pets．Last Christmas，a baby cat was ... ...